http://www.instructables.com Tue, 29 May 2012 06:10:46 PDT BLOX v1.01 http://www.instructables.com/id/Convert-a-bar-of-soap-into-fatty-acids/
Convert a bar of soap into fatty acids - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F56/UIU8/GMX1RN4B/F56UIU8GMX1RN4B.SQUARE2.jpg http://img.instructables.com/files/deriv/F56/UIU8/GMX1RN4B/F56UIU8GMX1RN4B.SQUARE.jpg http://img.instructables.com/files/deriv/F56/UIU8/GMX1RN4B/F56UIU8GMX1RN4B.SMALL.jpg EX5SGU1GMX1RJSK Jack A Lopez In this 'ible I will demonstrate unto the Instructables community, and anyone else in the World who cares to read this, how I converted a bar of Ivory(r) soap, and a few hundred milliliters of The Works(r) brand toilet bowl cleaner, into a solid, white, waxy mass, that I believe to be a mixture of f...
By: Jack A Lopez

Continue Reading »]]> technology Sun, 1 May 2011 07:46:16 PDT http://www.instructables.com/id/Van-De-Graaff-Electrostatic-High-Voltage-Generator/
Van De Graaff Electrostatic High Voltage Generator - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FAJ/J8JW/GMIGHALD/FAJJ8JWGMIGHALD.SQUARE2.jpg http://img.instructables.com/files/deriv/FAJ/J8JW/GMIGHALD/FAJJ8JWGMIGHALD.SQUARE.jpg http://img.instructables.com/files/deriv/FAJ/J8JW/GMIGHALD/FAJJ8JWGMIGHALD.SMALL.jpg EFJKJS7GMX7SN2Q killbox The parts for the VDG The only parts in this that you are not likely to find at your local hardware store are the wheels.   I used bed frame wheels. their choice sorta dictated the size of Van De Graaff (Henceforth called VDG for short.)  More about the wheels later. These are the parts used. ...
By: killbox

Continue Reading »]]> technology Mon, 25 Apr 2011 16:02:42 PDT http://www.instructables.com/id/Egg-shell-geode-crystals/
Egg shell geode - crystals - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FHZ/C6HK/GMIGGWOJ/FHZC6HKGMIGGWOJ.SQUARE2.jpg http://img.instructables.com/files/deriv/FHZ/C6HK/GMIGGWOJ/FHZC6HKGMIGGWOJ.SQUARE.jpg http://img.instructables.com/files/deriv/FHZ/C6HK/GMIGGWOJ/FHZC6HKGMIGGWOJ.SMALL.jpg EKCQWL3GMIGGWOB wombatmorrison This a variation on common crystal growing techniques.  Instead of growing crystals on a string, grow them inside a 'geode' made from an egg shell and plaster of paris. Materials:  Egg shells (washed) plaster of paris disposable cup craft sticks or stir sticks Water table salt or other cr...
By: wombatmorrison

Continue Reading »]]> technology Thu, 21 Apr 2011 13:56:20 PDT http://www.instructables.com/id/The-Juicy-Lemon-Light-Pod/
The Juicy Lemon Light Pod - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FLK/0DK4/GMIGFB0M/FLK0DK4GMIGFB0M.SQUARE2.jpg http://img.instructables.com/files/deriv/FLK/0DK4/GMIGFB0M/FLK0DK4GMIGFB0M.SQUARE.jpg http://img.instructables.com/files/deriv/FLK/0DK4/GMIGFB0M/FLK0DK4GMIGFB0M.SMALL.jpg EXL7KSHGMIGBA02 Alexdlp This Instructable will show you how to make your own Juicy Lemon Light Pod! It is based upon the idea of the classic 'Lemon Battery', only this one's just a bit more special! The main features include: 3x Refillable Juice containers Use of the Joule Thief Circuit LED Extension / Flexible arm Re...
By: Alexdlp

Continue Reading »]]> technology Sun, 17 Apr 2011 09:04:46 PDT http://www.instructables.com/id/Faraday-Rotation-EPIC/
Faraday Rotation (EPIC!) - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FJM/QM0F/GLWR25RN/FJMQM0FGLWR25RN.SQUARE2.jpg http://img.instructables.com/files/deriv/FJM/QM0F/GLWR25RN/FJMQM0FGLWR25RN.SQUARE.jpg http://img.instructables.com/files/deriv/FJM/QM0F/GLWR25RN/FJMQM0FGLWR25RN.SMALL.jpg ENMAO6WGI0TLVTP dyly Literally bending (twisting) light. Introduction: Circular Magnetic Birefringence This project recreates Faraday's 1845 experiment that revealed the fundamental nature of light: electromagnetic waves. History: • In 1845, Michael Faraday used a powerful electromagnet to rotate the polarization...
By: dyly

Continue Reading »]]> technology Thu, 14 Apr 2011 16:39:01 PDT http://www.instructables.com/id/The-Seismic-Reflector/
The Seismic Reflector - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FOR/OU59/G1ZGODKL/FOROU59G1ZGODKL.SQUARE2.jpg http://img.instructables.com/files/deriv/FOR/OU59/G1ZGODKL/FOROU59G1ZGODKL.SQUARE.jpg http://img.instructables.com/files/deriv/FOR/OU59/G1ZGODKL/FOROU59G1ZGODKL.SMALL.jpg EB412VFG1BBBWNC jimthree This is a project about earthquakes. On the 29th September 2009 a strong, magnitude 8 earthquake struck of the coast of Samoa. It happened early in the morning and caused a Tsunami which killed nearly 200 people. It was evening, after work when I heard the news here in the UK. The next day at work I...
By: jimthree

Continue Reading »]]> technology Sun, 15 Nov 2009 15:53:08 PST http://www.instructables.com/id/Paper-Mechanical-Iris/
Paper Mechanical Iris - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F1H/L24D/GLJ7F9B1/F1HL24DGLJ7F9B1.SQUARE2.jpg http://img.instructables.com/files/deriv/F1H/L24D/GLJ7F9B1/F1HL24DGLJ7F9B1.SQUARE.jpg http://img.instructables.com/files/deriv/F1H/L24D/GLJ7F9B1/F1HL24DGLJ7F9B1.SMALL.jpg EP0NTZSGLJ7F9OT dombeef I also got featured on HackADay! Link: http://hackaday.com/2011/03/22/paper-mechanical-iris/  Please rate and comment! I posted a picture Instructable of this, and someone wanted me to make an instructable. This mechanical iris has 6 segments, I plan to add more, it is "upgradable", as for that I c...
By: dombeef

Continue Reading »]]> technology Mon, 21 Mar 2011 16:08:10 PDT http://www.instructables.com/id/How-to-make-a-Klein-Bottle/
How to make a Klein Bottle - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F35/37QC/GL4Z6HN8/F3537QCGL4Z6HN8.SQUARE2.jpg http://img.instructables.com/files/deriv/F35/37QC/GL4Z6HN8/F3537QCGL4Z6HN8.SQUARE.jpg http://img.instructables.com/files/deriv/F35/37QC/GL4Z6HN8/F3537QCGL4Z6HN8.SMALL.jpg EP1X4AKGJQEIFX2 Z.Backas A mathematician named Klein Thought the Möbius band was divine. Said he: "If you glue The edges of two, You'll get a weird bottle like mine." This Instructable will teach you how to make a Klien bottle, which is a bottle with no distinct inside or outside; a non-orientable surface. You can r...
By: Z.Backas

Continue Reading »]]> technology Sun, 13 Mar 2011 15:13:53 PDT http://www.instructables.com/answers/How-does-heating-water-in-a-steam-engine-boiler-cr/ http://img.instructables.com/files/deriv/F62/TKYO/GKLJ5Z5H/F62TKYOGKLJ5Z5H.SQUARE2.jpg http://img.instructables.com/files/deriv/F62/TKYO/GKLJ5Z5H/F62TKYOGKLJ5Z5H.SQUARE.jpg http://img.instructables.com/files/deriv/F62/TKYO/GKLJ5Z5H/F62TKYOGKLJ5Z5H.SMALL.gif QCFQKWOGKLJ2CJ8 TheFoofinator I am thinking of doing an instructable on Model steam engines, how they work etcetera, and I am need of a Physicist to explain how the steam in the boiler builds up pressure. I know how the rest of the engines work, but unfortunately I am a bit lost for knowledge on pressure. I could just look at wi...
By: TheFoofinator

Continue Reading »]]> technology Sun, 27 Feb 2011 07:10:18 PST http://www.instructables.com/id/Poincare-disk-tiling-coasters/ http://img.instructables.com/files/deriv/FZ3/URQ5/GKLJ29XT/FZ3URQ5GKLJ29XT.SQUARE2.jpg http://img.instructables.com/files/deriv/FZ3/URQ5/GKLJ29XT/FZ3URQ5GKLJ29XT.SQUARE.jpg http://img.instructables.com/files/deriv/FZ3/URQ5/GKLJ29XT/FZ3URQ5GKLJ29XT.SMALL.jpg EFB1128GKLJ29ZK michiexile IKEA sells nice and cheap glass coasters for use as plates for block candles. These have a nice and flat backside, perfect for etching in circular designs. In particular, I have had a LOT of fun etching in hyperbolic tilings on these. One word of caution: I tried measuring the coasters, ending up w...
By: michiexile

Continue Reading »]]> technology Sat, 26 Feb 2011 16:26:30 PST http://www.instructables.com/id/Hurricane-Balls-3000-rpm-spinning-toy/
Hurricane Balls, 3000 rpm+ spinning toy. - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FI0/77BU/GKAYY35P/FI077BUGKAYY35P.SQUARE2.jpg http://img.instructables.com/files/deriv/FI0/77BU/GKAYY35P/FI077BUGKAYY35P.SQUARE.jpg http://img.instructables.com/files/deriv/FI0/77BU/GKAYY35P/FI077BUGKAYY35P.SMALL.jpg EEZ9ANOGKAYY34R Dr Qui UPDATE: Read step 7, It shows a better build method and has a link to an Ible that shows how to make the jig. I also posted and Ible on how to join ball bearings with soft solder here. I discovered this fun little toy while surfing around the net in the wee small hours last night on a site ca...
By: Dr Qui

Continue Reading »]]> technology Mon, 21 Feb 2011 09:24:36 PST http://www.instructables.com/id/Make-a-Bouquet-of-Multicolored-Carnations/
Make Multicolored Carnations . . . With Science! - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FNC/OJZL/GKAYXZQC/FNCOJZLGKAYXZQC.SQUARE2.jpg http://img.instructables.com/files/deriv/FNC/OJZL/GKAYXZQC/FNCOJZLGKAYXZQC.SQUARE.jpg http://img.instructables.com/files/deriv/FNC/OJZL/GKAYXZQC/FNCOJZLGKAYXZQC.SMALL.jpg EG1PQJBGJQEMABL depotdevoid Inspired by user NurdRage's video of how to make your flowers glow under UV light, I revisited an old science experiment from middle school.  India and I turned a bland spray of white carnations into this lovely bouquet of multicolored flowers, just in time for Valentine's Day. So come along and j...
By: depotdevoid

Continue Reading »]]> technology Sun, 20 Feb 2011 23:40:03 PST http://www.instructables.com/id/Hardware-Store-Steam-Engine-full-instructions/
Hardware Store Steam Engine full instructions - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F7H/PN5Y/GJQEIFYV/F7HPN5YGJQEIFYV.SQUARE2.jpg http://img.instructables.com/files/deriv/F7H/PN5Y/GJQEIFYV/F7HPN5YGJQEIFYV.SQUARE.jpg http://img.instructables.com/files/deriv/F7H/PN5Y/GJQEIFYV/F7HPN5YGJQEIFYV.SMALL.jpg EGEUQBUGJQEIEGO kcbford1 Hello, after uploading the following http://www.instructables.com/id/Hardware-Store-Steam-Engines-no-machining-require/ .......... I was flooded with emails to make another and submit a full Instructable. So………..here it is! This is a steam engine that requires no machining of parts, and everything ...
By: kcbford1

Continue Reading »]]> technology Sat, 19 Feb 2011 15:56:15 PST http://www.instructables.com/id/Hardware-Store-Steam-Engines-no-machining-require/ http://img.instructables.com/files/deriv/FZA/L6RR/GK3TOPEQ/FZAL6RRGK3TOPEQ.SQUARE2.jpg http://img.instructables.com/files/deriv/FZA/L6RR/GK3TOPEQ/FZAL6RRGK3TOPEQ.SQUARE.jpg http://img.instructables.com/files/deriv/FZA/L6RR/GK3TOPEQ/FZAL6RRGK3TOPEQ.SMALL.gif E3X7266GK3TOPBE kcbford1 ****** FULL INSTRUCTABLE GO HERE http://www.instructables.com/id/Hardware-Store-Steam-Engine-full-instructions/!*****  STEAM ENGINES!!!!!! and you dont need a machine shop. I built these a while ago not intending to post on instructables so unfortanly i have no photos but i have videos fly whe...
By: kcbford1

Continue Reading »]]> technology Thu, 17 Feb 2011 14:22:35 PST http://www.instructables.com/id/Make-Flowers-Glow-in-the-Dark-with-Highlighter-Flu/ http://img.instructables.com/files/deriv/FP4/GNID/GJQE9CPR/FP4GNIDGJQE9CPR.SQUARE2.jpg http://img.instructables.com/files/deriv/FP4/GNID/GJQE9CPR/FP4GNIDGJQE9CPR.SQUARE.jpg http://img.instructables.com/files/deriv/FP4/GNID/GJQE9CPR/FP4GNIDGJQE9CPR.SMALL.jpg E27LY8JGJQEG46Y NurdRage In this video we make white carnation flowers glow in the dark when exposed to ultraviolet light. What we're essentially going is making them fluorescent. To do this we get a fluorescent highlighter and open it up to get the foam ink cartridge. Then squeeze a few drops of the ink into a cup of wat...
By: NurdRage

Continue Reading »]]> technology Thu, 10 Feb 2011 14:38:59 PST http://www.instructables.com/id/Berlese-Funnel/
Berlese Funnel - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FGQ/Y9NJ/GJQED0D8/FGQY9NJGJQED0D8.SQUARE2.jpg http://img.instructables.com/files/deriv/FGQ/Y9NJ/GJQED0D8/FGQY9NJGJQED0D8.SQUARE.jpg http://img.instructables.com/files/deriv/FGQ/Y9NJ/GJQED0D8/FGQY9NJGJQED0D8.SMALL.jpg ELJR9CTGJQED09T tuckerlancaster Information A berlese funnel is a device that is used to extract insects from soil and litter samples. It was invented by Antonio Berlese and later improved. by Tullgren. Basically, it uses a heat source (in this case a light bulb) to dry the sample, forcing the insects through a screen and into a j...
By: tuckerlancaster

Continue Reading »]]> technology Fri, 4 Feb 2011 19:29:57 PST http://www.instructables.com/id/Make-An-Amazing-Magic-Ball/ http://img.instructables.com/files/deriv/F1A/ZKOU/G8XPQYAB/F1AZKOUG8XPQYAB.SQUARE2.jpg http://img.instructables.com/files/deriv/F1A/ZKOU/G8XPQYAB/F1AZKOUG8XPQYAB.SQUARE.jpg http://img.instructables.com/files/deriv/F1A/ZKOU/G8XPQYAB/F1AZKOUG8XPQYAB.SMALL.jpg EOJHUEYG8XPQYA6 signalred Very easy to create this ball that rolls down hill in slow motion. I bought the plastic ball at Hobby Lobby The steel ball is a Chinese Stress Ball
By: signalred

Continue Reading »]]> technology Fri, 7 May 2010 20:06:52 PDT http://www.instructables.com/id/Objective-heater/
Objective heater - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F5Y/FC6X/GITHPW3B/F5YFC6XGITHPW3B.SQUARE2.jpg http://img.instructables.com/files/deriv/F5Y/FC6X/GITHPW3B/F5YFC6XGITHPW3B.SQUARE.jpg http://img.instructables.com/files/deriv/F5Y/FC6X/GITHPW3B/F5YFC6XGITHPW3B.SMALL.jpg EVGJHZMGFRWQZL9 amaloney In microscopy, it is sometimes necessary to have a stable temperature while taking data. If you are using an oil immersion objective, then the thermal contact of the objective to the oil and the oil to your slide can cause temperature gradients in your sample. This is not a very good scenario for so...
By: amaloney

Continue Reading »]]> technology Wed, 19 Jan 2011 11:35:36 PST http://www.instructables.com/id/Pair-of-Hearts-Homopolar-Motor/
Pair of Hearts Homopolar Motor - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FF6/ZETH/GJ289X0P/FF6ZETHGJ289X0P.SQUARE2.jpg http://img.instructables.com/files/deriv/FF6/ZETH/GJ289X0P/FF6ZETHGJ289X0P.SQUARE.jpg http://img.instructables.com/files/deriv/FF6/ZETH/GJ289X0P/FF6ZETHGJ289X0P.SMALL.jpg EBPCWOAG5KP7DRQ mrfixitrick Make a pair of rotating copper heart motors...that unite to become one! In this Instructable, I show how to make a special 2-piece homopolar motor with a bass speaker, some coins, a battery and two pieces of copper wire. A neodymium magnet can be used instead of the bass speaker and coins. This is...
By: mrfixitrick

Continue Reading »]]> technology Sun, 14 Feb 2010 02:04:54 PST http://www.instructables.com/id/Laser-Cutting/
Laser Cutting (Article) - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FHK/BI4T/GIJG2H90/FHKBI4TGIJG2H90.SQUARE2.jpg http://img.instructables.com/files/deriv/FHK/BI4T/GIJG2H90/FHKBI4TGIJG2H90.SQUARE.jpg http://img.instructables.com/files/deriv/FHK/BI4T/GIJG2H90/FHKBI4TGIJG2H90.SMALL.jpg EPD8EYOGIJG2CS1 howitgoes When making stuff, the details can make all the difference in the world between looking clean and polished and looking rushed. To get this right involves spending many hours cutting precise holes or edges. But as industrial technology gets ever more accessible, the possibilities for everyday folks g...
By: howitgoes

Continue Reading »]]> technology Mon, 10 Jan 2011 10:21:19 PST http://www.instructables.com/id/DIY-levitation-of-a-magnetic-top/
DIY levitation of a magnetic top - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FLT/GEXE/GIRSYFKI/FLTGEXEGIRSYFKI.SQUARE2.jpg http://img.instructables.com/files/deriv/FLT/GEXE/GIRSYFKI/FLTGEXEGIRSYFKI.SQUARE.jpg http://img.instructables.com/files/deriv/FLT/GEXE/GIRSYFKI/FLTGEXEGIRSYFKI.SMALL.jpg E592K9LGINP9HX2 zuliani71 This is my 1st attempt to produce an instructable, I'm going to explain you how to build a system to levitate a magnetic top. It seems there is a commercial toy like that and now you'll be able to made it on your own. I've avoided inserting theory inside this instructable, just remember the system i...
By: zuliani71

Continue Reading »]]> technology Sun, 9 Jan 2011 23:20:55 PST http://www.instructables.com/id/Make-a-Ballistic-Bubbles-Machine/
Make a Ballistic Bubble Machine - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F9Z/DJ7H/GI0TMAUT/F9ZDJ7HGI0TMAUT.SQUARE2.jpg http://img.instructables.com/files/deriv/F9Z/DJ7H/GI0TMAUT/F9ZDJ7HGI0TMAUT.SQUARE.jpg http://img.instructables.com/files/deriv/F9Z/DJ7H/GI0TMAUT/F9ZDJ7HGI0TMAUT.SMALL.jpg ED8074YGI0TG580 ynze Time for an Instructable that makes a noise! This Ballistic Bubbles Machine produces soap-bubbles that make a very funny and sometimes very loud crack when ignited. The bubbles contain a mixture of two gasses: Oxygen and Hydrogen. The mixture of these two gasses is called… oxyhydrogen. In Dutch ...
By: ynze

Continue Reading »]]> technology Wed, 29 Dec 2010 06:42:57 PST http://www.instructables.com/id/Build-A-Fusion-Reactor/
Build A Fusion Reactor - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FO7/YM3M/GI0TFXNU/FO7YM3MGI0TFXNU.SQUARE2.jpg http://img.instructables.com/files/deriv/FO7/YM3M/GI0TFXNU/FO7YM3MGI0TFXNU.SQUARE.jpg http://img.instructables.com/files/deriv/FO7/YM3M/GI0TFXNU/FO7YM3MGI0TFXNU.SMALL.jpg EUCZRZXGI0TCJYG christensent Yes, you can build your very own nuclear fusion reactor in your house! But first, a few warnings: -This project includes lethal voltage levels. Make sure you know your high voltage safety or have a qualified electrical advisor. -Potentially hazardous levels of x-rays will be produced. Lead shieldin...
By: christensent

Continue Reading »]]> technology Sat, 25 Dec 2010 01:23:12 PST http://www.instructables.com/id/50000-volt-etch-a-sketch/
50,000 volt etch-a-sketch! - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FAN/Z15A/GHFJXCID/FANZ15AGHFJXCID.SQUARE2.jpg http://img.instructables.com/files/deriv/FAN/Z15A/GHFJXCID/FANZ15AGHFJXCID.SQUARE.jpg http://img.instructables.com/files/deriv/FAN/Z15A/GHFJXCID/FANZ15AGHFJXCID.SMALL.jpg EYPCWWFGHDS6OKL kalboon Hello, this instructable is intended for people just learning how to get into building devices that have a x/y motion ability, However this is not, and is not intended to be a CNC, or stepper device.     ***WARNING***  First off, if you choose to go all the way and make this use the flyback circui...
By: kalboon

Continue Reading »]]> technology Thu, 23 Dec 2010 16:46:51 PST http://www.instructables.com/id/Grow-Silver-Crystals-by-Electrochemistry/ http://img.instructables.com/files/deriv/FXT/4ELU/GHTLLMCR/FXT4ELUGHTLLMCR.SQUARE2.jpg http://img.instructables.com/files/deriv/FXT/4ELU/GHTLLMCR/FXT4ELUGHTLLMCR.SQUARE.jpg http://img.instructables.com/files/deriv/FXT/4ELU/GHTLLMCR/FXT4ELUGHTLLMCR.SMALL.jpg EMQR853GHTLR5GY NurdRage In this video we grow crystals of pure silver metal by electochemistry. The procedure is fairly simple. Just apply an electric current between a silver anode and an aluminum or silver metal cathode while they are immersed in silver nitrate solution. The silver ions from the anode will deposit on th...
By: NurdRage

Continue Reading »]]> technology Sun, 19 Dec 2010 12:53:12 PST http://www.instructables.com/id/The-amazing-pringles-tube-Stirling-engine/
The amazing Pringles Stirling engine - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F6F/RDED/GHTLLK2T/F6FRDEDGHTLLK2T.SQUARE2.jpg http://img.instructables.com/files/deriv/F6F/RDED/GHTLLK2T/F6FRDEDGHTLLK2T.SQUARE.jpg http://img.instructables.com/files/deriv/F6F/RDED/GHTLLK2T/F6FRDEDGHTLLK2T.SMALL.jpg EOOYOOUGHFK873S scraptopower The amazing pringles Stirling engine, made from cardboard Pringles tube. When I saw this video by MarekSHayward I just had to have my own! It impressed me seeing a Stirling engine made mostly out of cardboard, something which wouldn't normally be workable in an external combustion engine.  This is a...
By: scraptopower

Continue Reading »]]> technology Sun, 19 Dec 2010 12:29:10 PST http://www.instructables.com/id/A-simple-DIY-spectrophotometer/
A simple DIY spectrophotometer - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F13/6TNG/GHUDKGQ2/F136TNGGHUDKGQ2.SQUARE2.jpg http://img.instructables.com/files/deriv/F13/6TNG/GHUDKGQ2/F136TNGGHUDKGQ2.SQUARE.jpg http://img.instructables.com/files/deriv/F13/6TNG/GHUDKGQ2/F136TNGGHUDKGQ2.SMALL.jpg ENOO1S8GHUDKFC0 AlfonsVH What's all this? This instructable will explain how to build a fairly basic but working spectrophotometer out of easily sourceable parts. Of course, this device is nothing compared to a commercial spectrophotometer, but it will allow the builder to understand how such a device works. Huh? What...
By: AlfonsVH

Continue Reading »]]> technology Sun, 19 Dec 2010 11:08:44 PST http://www.instructables.com/id/Making-Ooglo-Luminescent-Silicone-Paint/
Making Ooglo: Luminescent Silicone Paint - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FPO/YBHD/GHHILOLN/FPOYBHDGHHILOLN.SQUARE2.jpg http://img.instructables.com/files/deriv/FPO/YBHD/GHHILOLN/FPOYBHDGHHILOLN.SQUARE.jpg http://img.instructables.com/files/deriv/FPO/YBHD/GHHILOLN/FPOYBHDGHHILOLN.SMALL.jpg E1K8L1GGHHILOJD mikey77 Transform silicone caulk into silicone paint that glows in the dark all night. It is very sticky and can be painted onto almost anything, including wood, fabrics, glass, and metal. The intro pic shows a phosphorescent flashlight made out of a wineglass. It also shows a curved circuit board coated w...
By: mikey77

Continue Reading »]]> technology Thu, 9 Dec 2010 19:31:58 PST http://www.instructables.com/id/Make-a-Joule-Thief/
Make a Joule Thief - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FM0/49GT/FCEILXR3/FM049GTFCEILXR3.SQUARE2.jpg http://img.instructables.com/files/deriv/FM0/49GT/FCEILXR3/FM049GTFCEILXR3.SQUARE.jpg http://img.instructables.com/files/deriv/FM0/49GT/FCEILXR3/FM049GTFCEILXR3.SMALL.jpg E68CUR5FCEILXIN 1up Yes, it's the infamous Joule Thief, in Instructable form! For those of you who don't know, the Joule Thief is a tiny little circuit that allows you to drive a white or blue LED from voltages as low as 0.5 volts. You think those batteries are dead? Don't throw them out yet! Hook them up to the Joule ...
By: 1up

Continue Reading »]]> technology Thu, 14 Feb 2008 21:05:44 PST http://www.instructables.com/id/Make-Hydrazine-Sulfate-by-the-Hypochlorite-Ketazin/ http://img.instructables.com/files/deriv/FRQ/YWBX/GGPEXD28/FRQYWBXGGPEXD28.SQUARE2.jpg http://img.instructables.com/files/deriv/FRQ/YWBX/GGPEXD28/FRQYWBXGGPEXD28.SQUARE.jpg http://img.instructables.com/files/deriv/FRQ/YWBX/GGPEXD28/FRQYWBXGGPEXD28.SMALL.jpg EAURVNNGGPFAZ6O NurdRage In this video we make hydrazine sulfate by the hypochlorite ketazine process. Warning: The reaction produces toxic gases and products. It also uses corrosive chemicals, gloves must be worn. Hydrazine sulfate is a useful substitute for the more dangerous pure liquid hydrazine in chemical reactions....
By: NurdRage

Continue Reading »]]> technology Fri, 19 Nov 2010 23:47:49 PST http://www.instructables.com/answers/If-you-die-in-a-dream-do-you-really-die/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif Q6BL5P1GGC2TVDC a_person My friends and I are attempting to lucid dream. I don't wanna die and I'm sure my friends don't wanna die and I've heard mixed things. So is it Myth or Fact? UPDATE: Thanks for all the answers guys!  I just realized how dumb of a question it was after reading a post that said Even if someone died i...
By: a_person

Continue Reading »]]> technology Thu, 11 Nov 2010 09:13:08 PST http://www.instructables.com/id/DIY-Glow-Sticks/
DIY Glow Sticks - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FI2/8IGV/GFRWM869/FI28IGVGFRWM869.SQUARE2.jpg http://img.instructables.com/files/deriv/FI2/8IGV/GFRWM869/FI28IGVGFRWM869.SQUARE.jpg http://img.instructables.com/files/deriv/FI2/8IGV/GFRWM869/FI28IGVGFRWM869.SMALL.jpg EPRVD0BGFRWM80F Emsaid I learned how to make glow sticks recently in my chemistry class. you just need a few "simple" chemicals, your probably going to have to buy these chemicals online, unless you can get/steal them from your chemistry class. Also, these amounts of the chemicals only make a small glowstick that doesnt ...
By: Emsaid

Continue Reading »]]> technology Thu, 28 Oct 2010 21:32:53 PDT http://www.instructables.com/answers/How-does-fire-cupping-work-and-whats-the-Physi/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif Q44MO4UGFMBYNQP gruffalo child This is another unethically homework-based question.  I have to estimate the pressure inside the cup, but I don't get how low pressure is formed.  I am not sure that you can heat the air inside so much that the thing will suck in your skin immediately without giving you bad burns. Anyway, they put a...
By: gruffalo child

Continue Reading »]]> technology Tue, 26 Oct 2010 06:40:26 PDT http://www.instructables.com/id/Measuring-Area-of-Irregular-Shapes/
Measuring Area of Irregular Shapes - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F8L/8LI7/GFA4542A/F8L8LI7GFA4542A.SQUARE2.jpg http://img.instructables.com/files/deriv/F8L/8LI7/GFA4542A/F8L8LI7GFA4542A.SQUARE.jpg http://img.instructables.com/files/deriv/F8L/8LI7/GFA4542A/F8L8LI7GFA4542A.SMALL.jpg EJ7HY2JGFA453W8 ancienthart This instructable combines a few mathematical tricks to enable you to calculate the area of irregular shapes. I come from a farming background. One of the things we often had to do, was measure the area of a section of land in order to calculate how much fertiliser  was required. This can be done f...
By: ancienthart

Continue Reading »]]> technology Fri, 15 Oct 2010 18:43:57 PDT http://www.instructables.com/id/Muscle-anatomy-with-Sugru-and-a-Halloween-skeleton/
Muscle anatomy with Sugru and a Halloween skeleton - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FCM/NDLM/GF070CCU/FCMNDLMGF070CCU.SQUARE2.jpg http://img.instructables.com/files/deriv/FCM/NDLM/GF070CCU/FCMNDLMGF070CCU.SQUARE.jpg http://img.instructables.com/files/deriv/FCM/NDLM/GF070CCU/FCMNDLMGF070CCU.SMALL.jpg EUQCJMOGF070CBI RaisedByRobots materials sugru (approx $1.50 each)      $7.50 two orange packs one blue pack one green pack one black pack one plastic halloween skeleton from the Dollar Store 4 for $1.00 sugru Sugru cures relatively quickly.  Working time may be two hours at the most.  30 minutes is the recommended...
By: RaisedByRobots

Continue Reading »]]> technology Sun, 10 Oct 2010 21:01:43 PDT http://www.instructables.com/id/Ion-Wind-Turbine-Shows-Static-Electricity-in-Actio/
Electrostatic Turbine - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FE1/TXXV/GU8MZ79O/FE1TXXVGU8MZ79O.SQUARE2.jpg http://img.instructables.com/files/deriv/FE1/TXXV/GU8MZ79O/FE1TXXVGU8MZ79O.SQUARE.jpg http://img.instructables.com/files/deriv/FE1/TXXV/GU8MZ79O/FE1TXXVGU8MZ79O.SMALL.jpg ER6Q5DWGERP1F2O brazilero2008 Static electricity is high voltage (HV) at low current. That unexpected ZAP! occurring when you walk across a carpet and touch a metal object demonstrates HV conduction by ionized air particles. Ion wind turbines use electrostatic forces acting between these particles to produce mechanical movement....
By: brazilero2008

Continue Reading »]]> technology Thu, 7 Oct 2010 18:07:55 PDT http://www.instructables.com/id/A-small-portable-gravitation-shield/
A small, portable gravitation shield - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F33/GU5F/GEG4GWHK/F33GU5FGEG4GWHK.SQUARE2.jpg http://img.instructables.com/files/deriv/F33/GU5F/GEG4GWHK/F33GU5FGEG4GWHK.SQUARE.jpg http://img.instructables.com/files/deriv/F33/GU5F/GEG4GWHK/F33GU5FGEG4GWHK.SMALL.jpg E7CGM5PGE38TC4W gruffalo child Yes, it is a real gravitation shield! Well, not really, but it is a great thing to astonish people at first and then make them remember the electromagnetism they have been taught at school. It is also a great conversation and demonstration piece in a class studying electromagnetism. Also, it can be ...
By: gruffalo child

Continue Reading »]]> technology Fri, 24 Sep 2010 05:48:23 PDT http://www.instructables.com/id/Cigar-Box-Stir-Plate/
Cigar Box Stir Plate - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F71/8A05/GE7LESVB/F718A05GE7LESVB.SQUARE2.jpg http://img.instructables.com/files/deriv/F71/8A05/GE7LESVB/F718A05GE7LESVB.SQUARE.jpg http://img.instructables.com/files/deriv/F71/8A05/GE7LESVB/F718A05GE7LESVB.SMALL.jpg E1SNMWXGE7L3VVH completegeek I home brew my own beer, and one important tool for brewing is a stir plate. It keeps yeast in suspension and aerates the growth medium for maximum cell count. To purchase one of these stir plates is easily $100 bucks and is probably overkill for my purposes. For around $10 and a few salvaged materi...
By: completegeek

Continue Reading »]]> technology Sun, 19 Sep 2010 12:57:47 PDT http://www.instructables.com/id/Papier-Mache-Planets/
Papier Mache Planets - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FBR/GS5U/GE38R0F7/FBRGS5UGE38R0F7.SQUARE2.jpg http://img.instructables.com/files/deriv/FBR/GS5U/GE38R0F7/FBRGS5UGE38R0F7.SQUARE.jpg http://img.instructables.com/files/deriv/FBR/GS5U/GE38R0F7/FBRGS5UGE38R0F7.SMALL.jpg ECKGP5WGE38R0C9 Facci Designs Here are my DIY tips for creating the papier mache planets. This is a great craft to do with your kids. Keep in mind that this is a labor-intensive DIY project but so much fun! Gather Balloons I gathered an assortment of round balloons Create Papier Mache mixture I then created my papie...
By: Facci Designs

Continue Reading »]]> technology Wed, 15 Sep 2010 07:35:00 PDT http://www.instructables.com/id/Make-A-Solar-Cell-TiO2Raspberry-based/ http://img.instructables.com/files/deriv/FZ4/R2WM/GDVZ36F3/FZ4R2WMGDVZ36F3.SQUARE2.jpg http://img.instructables.com/files/deriv/FZ4/R2WM/GDVZ36F3/FZ4R2WMGDVZ36F3.SQUARE.jpg http://img.instructables.com/files/deriv/FZ4/R2WM/GDVZ36F3/FZ4R2WMGDVZ36F3.SMALL.jpg E9N6HMJGDVZ36ET NurdRage In this video we produce dye sensitized solar cell based on titanium dioxide and anthocyanin found in raspberries. The indium tin oxide glass was purchased from delta technologies http://www.delta-technologies.com/ The titanium dioxide (anatase type) and potassium iodide and iodine were purchased...
By: NurdRage

Continue Reading »]]> technology Sat, 11 Sep 2010 14:15:42 PDT http://www.instructables.com/id/Van-de-Graaff-Generator-made-from-junk/
Van de Graaff Generator made from junk - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FOY/FNKY/LPZEZ7BE77S/FOYFNKYLPZEZ7BE77S.SQUARE2.jpg http://img.instructables.com/files/deriv/FOY/FNKY/LPZEZ7BE77S/FOYFNKYLPZEZ7BE77S.SQUARE.jpg http://img.instructables.com/files/deriv/FOY/FNKY/LPZEZ7BE77S/FOYFNKYLPZEZ7BE77S.SMALL.jpg E678QQYU0NEZBF8RXE Sedgewick17 This is instructions on how I built a Van de Graaff generator from junk lying about my house.(And I do mean junk.) parts Okay, the first thing you will want to do is gather all of the necessary parts. They include 1 pencil with ereaser, two dried out old click pen parts, a piece of 8in. long PVC ...
By: Sedgewick17

Continue Reading »]]> technology Sun, 18 Mar 2007 21:24:08 PDT http://www.instructables.com/id/Solar-Powered-Miniball-Wannabe/
Solar Powered Miniball Wannabe - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FX1/BFE9/FYTCL421/FX1BFE9FYTCL421.SQUARE2.jpg http://img.instructables.com/files/deriv/FX1/BFE9/FYTCL421/FX1BFE9FYTCL421.SQUARE.jpg http://img.instructables.com/files/deriv/FX1/BFE9/FYTCL421/FX1BFE9FYTCL421.SMALL.jpg EGZ1HUJFYTCL2ZF Solarbotics This miniball project has its roots in the old BEAM Miniball kit published by Solarbotics. It's still a cool kit, so we're going to show you how built a simpler version. This project is spearheaded by Mr. Jerome Demers ( aka Robomaniac ), our intern at Solarbotics! This robot uses a solar engine ci...
By: Solarbotics

Continue Reading »]]> technology Mon, 16 Nov 2009 12:49:32 PST http://www.instructables.com/id/Homeschool-Science/ http://img.instructables.com/files/deriv/F46/MPCB/FUF3H2Z5/F46MPCBFUF3H2Z5.SQUARE2.jpg http://img.instructables.com/files/deriv/F46/MPCB/FUF3H2Z5/F46MPCBFUF3H2Z5.SQUARE.jpg http://img.instructables.com/files/deriv/F46/MPCB/FUF3H2Z5/F46MPCBFUF3H2Z5.SMALL.jpg OC3RZJOFTY4D09U drinkmorecoffee Instructables loves homeschoolers! And homeschoolers love Instructables!In the spirit of DIY education and home-brew learning, here are some great do-it-at-home science projects. Understanding Hydroponics This instructable will explain household hydroponics, with the intention of growing edible f...
By: drinkmorecoffee

Continue Reading »]]> technology Fri, 8 May 2009 15:48:33 PDT http://www.instructables.com/id/Ultimate-500-Headlamp-DANs-work-with-my-design/
Ultimate 500+ Headlamp, DANs work with my design - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F9Z/QFI1/G23UQ3Q0/F9ZQFI1G23UQ3Q0.SQUARE2.jpg http://img.instructables.com/files/deriv/F9Z/QFI1/G23UQ3Q0/F9ZQFI1G23UQ3Q0.SQUARE.jpg http://img.instructables.com/files/deriv/F9Z/QFI1/G23UQ3Q0/F9ZQFI1G23UQ3Q0.SMALL.jpg E0TIF4CG69MUTG3 LardaLot In pursuit of a really good headlamp, without the need of paying a pile of money large enough to fill my apartment for it, I stumbled on dan´s idea for a headlamp and I liked it from beginning. so I sketched my plans, invested and cashed in some friend-checks, and now it it is built. This is what I ...
By: LardaLot

Continue Reading »]]> technology Thu, 4 Mar 2010 09:28:21 PST http://www.instructables.com/id/How-to-make-glow-stick-goo./
How to make glow stick goo. - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FPI/27C3/FF78M0B3/FPI27C3FF78M0B3.SQUARE2.jpg http://img.instructables.com/files/deriv/FPI/27C3/FF78M0B3/FPI27C3FF78M0B3.SQUARE.jpg http://img.instructables.com/files/deriv/FPI/27C3/FF78M0B3/FPI27C3FF78M0B3.SMALL.jpg ETEIEHOFF78M0BF Aerospaced Ever wonder how that two part solution works or if you can make your own? The answers are in here. You will need.... Chemicals Required: Sodium Hydroxide (lye)You can use "Red Devil" drain cleaner or buy it on eBay. Luminol, also available on eBay. Hydrogen Peroxide (3% drugstore variety) Sodi...
By: Aerospaced

Continue Reading »]]> technology Fri, 18 Apr 2008 19:48:53 PDT http://www.instructables.com/id/How-to-Build-a-Wiremap/
How to Build a Wiremap - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FI6/RWZD/FQMXFEK2/FI6RWZDFQMXFEK2.SQUARE2.jpg http://img.instructables.com/files/deriv/FI6/RWZD/FQMXFEK2/FI6RWZDFQMXFEK2.SQUARE.jpg http://img.instructables.com/files/deriv/FI6/RWZD/FQMXFEK2/FI6RWZDFQMXFEK2.SMALL.jpg E4S004WFQMXES12 phedhex The Wiremap is a project that builds digital 3d objects in real 3d space. To create digital 3d objects in real 3d space, a projector is placed in front of a custom designed projection surface made up of an array of vertical wires. If you'd like to learn more about the project in general, you can do...
By: phedhex

Continue Reading »]]> technology Sun, 8 Feb 2009 21:19:14 PST http://www.instructables.com/id/How-to-Make-some-Charcoal/
How to Make some Charcoal - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FQL/U9XA/XM9EZ7C8Q49/FQLU9XAXM9EZ7C8Q49.SQUARE2.jpg http://img.instructables.com/files/deriv/FQL/U9XA/XM9EZ7C8Q49/FQLU9XAXM9EZ7C8Q49.SQUARE.jpg http://img.instructables.com/files/deriv/FQL/U9XA/XM9EZ7C8Q49/FQLU9XAXM9EZ7C8Q49.SMALL.jpg ESN90GMRDBEZ7C8QC0 juggler I have been involved in a local school (Portland Waldorf School) which has a blacksmithing program. There have been complaints about the smell of the coal burning and so I found out that charcoal can be used as the fuel instead of coal/coke. So I am building this charcoal maker so that the children ...
By: juggler

Continue Reading »]]> technology Tue, 13 Mar 2007 19:18:37 PDT http://www.instructables.com/id/Separate-Hydrogen-and-Oxygen-from-Water-Through-El/
Separate Hydrogen and Oxygen from Water Through Electrolysis - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F4A/54HN/F5R8MQ53/F4A54HNF5R8MQ53.SQUARE2.jpg http://img.instructables.com/files/deriv/F4A/54HN/F5R8MQ53/F4A54HNF5R8MQ53.SQUARE.jpg http://img.instructables.com/files/deriv/F4A/54HN/F5R8MQ53/F4A54HNF5R8MQ53.SMALL.gif EH2E1YWF5R8MQ3Q hooloovoo33 Electrolysis a method of separating elements by pushing an electric current through a compound. It is used in various industrial applications such as removing copper from its ore. It is also used to separate hydrogen and oxygen from water. Electrolysis isn't the most efficient way to obtain hydrog...
By: hooloovoo33

Continue Reading »]]> technology Mon, 27 Aug 2007 11:36:10 PDT http://www.instructables.com/answers/Bag-labelled-Kandis/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QJR7GWAGCI8K8XX LiquidLightning So today i got a bag ,  one of the things inside was a small bag labelled "Kandis", with the numbers 0000. Inside are large clear/white crystals about 1 cm2. The crystal structure is monoclinic. As in square with angled edges. If anyone can tell me what these are, i would be very grateful.
By: LiquidLightning

Continue Reading »]]> technology Mon, 9 Aug 2010 00:17:04 PDT http://www.instructables.com/id/Air-quality-balloons/
Air quality balloons - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FBB/5DH6/GC4G1BD1/FBB5DH6GC4G1BD1.SQUARE2.jpg http://img.instructables.com/files/deriv/FBB/5DH6/GC4G1BD1/FBB5DH6GC4G1BD1.SQUARE.jpg http://img.instructables.com/files/deriv/FBB/5DH6/GC4G1BD1/FBB5DH6GC4G1BD1.SMALL.jpg ENTL6QSGC4G1BCK staceyk This Instructable will show you how to make giant, super cool, glowing balloons that react to surrounding air quality. Inside each balloon is a tri-colored LED. This LED reacts to data from an air quality sensor, turning green, yellow or red based on low, average, and high values. Even without any ...
By: staceyk

Continue Reading »]]> technology Tue, 3 Aug 2010 00:31:35 PDT http://www.instructables.com/id/How-to-make-a-macro-particle-accelerator/
How to make a macro particle accelerator - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F2A/XUBH/GC4GCFO3/F2AXUBHGC4GCFO3.SQUARE2.jpg http://img.instructables.com/files/deriv/F2A/XUBH/GC4GCFO3/F2AXUBHGC4GCFO3.SQUARE.jpg http://img.instructables.com/files/deriv/F2A/XUBH/GC4GCFO3/F2AXUBHGC4GCFO3.SMALL.jpg EPULOJ4GBZYUUFH emcelhannon This is an attempt to reporduce Dr. Todd Johnsons demo of a particle accelerator by propelling a coated ping pong ball with electric fields. What you see is strips of aluminum tape charged and spread out in a bow.l They are used to create electric charges that repeatedly change the charge of a ...
By: emcelhannon

Continue Reading »]]> technology Tue, 27 Jul 2010 10:22:59 PDT http://www.instructables.com/id/Make-Glow-Sticks-The-Science/ http://img.instructables.com/files/deriv/FHR/8MK8/GBOTJEXQ/FHR8MK8GBOTJEXQ.SQUARE2.jpg http://img.instructables.com/files/deriv/FHR/8MK8/GBOTJEXQ/FHR8MK8GBOTJEXQ.SQUARE.jpg http://img.instructables.com/files/deriv/FHR/8MK8/GBOTJEXQ/FHR8MK8GBOTJEXQ.SMALL.jpg ESXS3V6GBOTJEXO NurdRage We show how to make glow sticks and go through all the chemicals needed as well as how to make different colors. We also talk about the chemistry and scientifically research a proposed mechanism. To make the glow stick mix together the following: 10mL Diethyl Phthalate (solvent) 3mg of fluorescent...
By: NurdRage

Continue Reading »]]> technology Sat, 17 Jul 2010 18:56:54 PDT http://www.instructables.com/id/Gourmet-mushrooms-in-an-old-coffee-cup/
Gourmet mushrooms in an old coffee cup - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FD3/JMWA/G91Y91PK/FD3JMWAG91Y91PK.SQUARE2.jpg http://img.instructables.com/files/deriv/FD3/JMWA/G91Y91PK/FD3JMWAG91Y91PK.SQUARE.jpg http://img.instructables.com/files/deriv/FD3/JMWA/G91Y91PK/FD3JMWAG91Y91PK.SMALL.jpg E078C1RG8LWKCMQ zzapatista This is a cheap and easy way to produce lots of tasty fresh mushrooms for the kitchen, while at the same time reducing your own waste and even handling some extra.  The idea is that you will use an old coffee cup as a container to grow oyster mushroom mycelium, which will in turn produce fruit in th...
By: zzapatista

Continue Reading »]]> technology Thu, 29 Apr 2010 22:05:40 PDT http://www.instructables.com/id/DIY-Kitty-Crack%3a--ultra-potent-catnip-extract/
DIY Kitty Crack: ultra-potent catnip extract - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FXR/50IQ/F2DSDRAC/FXR50IQF2DSDRAC.SQUARE2.jpg http://img.instructables.com/files/deriv/FXR/50IQ/F2DSDRAC/FXR50IQF2DSDRAC.SQUARE.jpg http://img.instructables.com/files/deriv/FXR/50IQ/F2DSDRAC/FXR50IQF2DSDRAC.SMALL.jpg EMDCESQF2DSDRAG talbotron22 At least two thirds of domestic cats "enjoy" the effects of Nepeta, a.k.a. "catnip." But do they enjoy it enough? If humans were able to isolate the active ingredient in catnip, could we not use it to become omnipowerful CATGODS? Imagine the possibilities! What fool wouldn't want their own perso...
By: talbotron22

Continue Reading »]]> technology Sun, 3 Jun 2007 20:54:50 PDT http://www.instructables.com/id/Sine-Wave-Machine/ http://img.instructables.com/files/deriv/FRS/2HJ0/GBF5L51J/FRS2HJ0GBF5L51J.SQUARE2.jpg http://img.instructables.com/files/deriv/FRS/2HJ0/GBF5L51J/FRS2HJ0GBF5L51J.SQUARE.jpg http://img.instructables.com/files/deriv/FRS/2HJ0/GBF5L51J/FRS2HJ0GBF5L51J.SMALL.jpg E7796GAGBF5L51H Tool Using Animal Here's a quick video of a hand made prototype I knocked together to demonstrate mechanization of amiiform motion for a class I'm taking .
By: Tool Using Animal

Continue Reading »]]> technology Wed, 14 Jul 2010 11:50:10 PDT http://www.instructables.com/id/Cardboard-Savonius-turbine/
Cardboard Savonius Wind Turbine - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FZK/58IV/FCEIM1LP/FZK58IVFCEIM1LP.SQUARE2.jpg http://img.instructables.com/files/deriv/FZK/58IV/FCEIM1LP/FZK58IVFCEIM1LP.SQUARE.jpg http://img.instructables.com/files/deriv/FZK/58IV/FCEIM1LP/FZK58IVFCEIM1LP.SMALL.jpg E13MGANFCHYO4OK rhackenb Goal: build a Savonius wind turbine made out of cardboard to see whatworks. This is for the turbine only and not the generator itself. The main photo you see is the goal.The need for a working model grew out of frustration trying tojury-rig various designs of a Savonius turbine that in the end wou...
By: rhackenb

Continue Reading »]]> technology Sat, 16 Feb 2008 14:42:34 PST http://www.instructables.com/id/How-To-Make-A-Homemade-Electric-Telegraph!/ http://img.instructables.com/files/deriv/F8C/RJWL/F9T3NIWS/F8CRJWLF9T3NIWS.SQUARE2.jpg http://img.instructables.com/files/deriv/F8C/RJWL/F9T3NIWS/F8CRJWLF9T3NIWS.SQUARE.jpg http://img.instructables.com/files/deriv/F8C/RJWL/F9T3NIWS/F8CRJWLF9T3NIWS.SMALL.jpg EZYY6AEF9T3NIWJ johnnyrockstah Make a homemade electronic telegraph for sending morse code messages to family and friends. No soldering required. MATERIALS NEEDED:Two pieces of cardboard (5x7 inches)Two pieces of cardboard (2x4 inches)Duct tapeJumbo paper clipSciccorsThumbtackMini BuzzerRuler One short wireLight bulb from Christm...
By: johnnyrockstah

Continue Reading »]]> technology Fri, 7 Dec 2007 13:14:34 PST http://www.instructables.com/id/Building-an-Ornithopter/
Building an Ornithopter - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FMU/SECN/GAB5QDIE/FMUSECNGAB5QDIE.SQUARE2.jpg http://img.instructables.com/files/deriv/FMU/SECN/GAB5QDIE/FMUSECNGAB5QDIE.SQUARE.jpg http://img.instructables.com/files/deriv/FMU/SECN/GAB5QDIE/FMUSECNGAB5QDIE.SMALL.jpg EJMLP13GAA0X57X kfay This project shows you how to build a small, rubber band -powered ornithopter. Gather Materials 1. 7 inches balsa rod 1/8"x1/4"-Cut into lengths of: 5" motor stick, 1 1/2" front vertical        connector 2. 6 inches balsa rod 1/16"x1/4"-Cut into lengths of: Two 2 3/4" connecting rods 3. 24 inches...
By: kfay

Continue Reading »]]> technology Wed, 16 Jun 2010 10:14:15 PDT http://www.instructables.com/id/A-Simple-Steam-Engine-Anyone-Can-Build/
Cheap and Simple Steam Engine - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F8K/PTVQ/GAFDTCIA/F8KPTVQGAFDTCIA.SQUARE2.jpg http://img.instructables.com/files/deriv/F8K/PTVQ/GAFDTCIA/F8KPTVQGAFDTCIA.SQUARE.jpg http://img.instructables.com/files/deriv/F8K/PTVQ/GAFDTCIA/F8KPTVQGAFDTCIA.SMALL.jpg EDBKAS1GAA0X7B2 liam2317 The Idea: Recently I saw a video of a remote controlled boat powered by a miniature steam engine  and was instantly hooked on the idea.  After doing a bit of research I found miniature steam engines cost hundreds of dollars or require some very advanced skills and tools to build.  Yet looking at th...
By: liam2317

Continue Reading »]]> technology Mon, 14 Jun 2010 19:06:21 PDT http://www.instructables.com/id/Make-a-Microbial-Fuel-Cell-MFC-Part-II/
Make a Microbial Fuel Cell (MFC) - Part II - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F9W/KELT/FVW1UJ50/F9WKELTFVW1UJ50.SQUARE2.jpg http://img.instructables.com/files/deriv/F9W/KELT/FVW1UJ50/F9WKELTFVW1UJ50.SQUARE.jpg http://img.instructables.com/files/deriv/F9W/KELT/FVW1UJ50/F9WKELTFVW1UJ50.SMALL.jpg E0HMFT6FUI0UEVZ egbertfitzwilly This instructable provides detailed directions for building your own microbial fuel cell using Jello, Saltwater and Septic Tank treatment. It's based on the information provided in Make a Microbial Fuel Cell (MFC) - Part 1This is a true fuel cell in that both the anaerobic and electrolyte media are...
By: egbertfitzwilly

Continue Reading »]]> technology Sat, 13 Jun 2009 19:27:10 PDT http://www.instructables.com/id/Tesla-Turbine/ http://img.instructables.com/files/deriv/FCC/1VEO/GAA12P7H/FCC1VEOGAA12P7H.SQUARE2.jpg http://img.instructables.com/files/deriv/FCC/1VEO/GAA12P7H/FCC1VEOGAA12P7H.SQUARE.jpg http://img.instructables.com/files/deriv/FCC/1VEO/GAA12P7H/FCC1VEOGAA12P7H.SMALL.jpg OCLXJSGG9XBMCTH zazenergy  The Tesla turbine was patented by none other than Nikola Tesla in 1913. They use the boundary layer effect rather than fluid impinging on the blades. It's a high RPM low torque motor. So, applications can be somewhat limited in the traditional sense of what we think of as uses for motors. Though, T...
By: zazenergy

Continue Reading »]]> technology Mon, 14 Jun 2010 10:35:19 PDT http://www.instructables.com/id/Build-a-Better-Stirling-Engine/
Build a Better Stirling Engine - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FRB/AF5M/GAA0ESKX/FRBAF5MGAA0ESKX.SQUARE2.jpg http://img.instructables.com/files/deriv/FRB/AF5M/GAA0ESKX/FRBAF5MGAA0ESKX.SQUARE.jpg http://img.instructables.com/files/deriv/FRB/AF5M/GAA0ESKX/FRBAF5MGAA0ESKX.SMALL.jpg EUESQIIGA8NJYUP marshon Following my experiments with the first LTD Stirling, I decided to try and make a better one. The main problems with the first had been the glued joint leaking air, and excessive requirements for machining. This one would have soldered joints to prevent the leaks and would have far less machining a...
By: marshon

Continue Reading »]]> technology Mon, 14 Jun 2010 03:46:42 PDT http://www.instructables.com/id/Candle-Powered-Hot-Air-Balloon/
Candle Powered Hot Air Balloon - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FW9/JLB6/LA6EP27QNI7/FW9JLB6LA6EP27QNI7.SQUARE2.jpg http://img.instructables.com/files/deriv/FW9/JLB6/LA6EP27QNI7/FW9JLB6LA6EP27QNI7.SQUARE.jpg http://img.instructables.com/files/deriv/FW9/JLB6/LA6EP27QNI7/FW9JLB6LA6EP27QNI7.SMALL.jpg EDRQOQBMW3EP2861HI ewilhelm Build a candle powered hot air balloon using painter's plastic, balsa wood, and birthday candles. null Cut the plastic and heat-seal the edges. Layout your materials on a large sheet cardboard. Pull out approximately 6 feet of the painter's plastic and cut it forming a sheet 9 x 6 ft. It's i...
By: ewilhelm

Continue Reading »]]> technology Mon, 8 Aug 2005 18:06:58 PDT http://www.instructables.com/id/Build-a-15%2c000-rpm-Tesla-Turbine-using-hard-drive-/
Build a 15,000 rpm Tesla Turbine using hard drive platters - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FV0/S7YD/5AQEP27YAST/FV0S7YD5AQEP27YAST.SQUARE2.jpg http://img.instructables.com/files/deriv/FV0/S7YD/5AQEP27YAST/FV0S7YD5AQEP27YAST.SQUARE.jpg http://img.instructables.com/files/deriv/FV0/S7YD/5AQEP27YAST/FV0S7YD5AQEP27YAST.SMALL.jpg E5R0LEN6OFEP287CZL sbtroy Here's a project that uses some of those dead hard drives you've got lying around. In the Tesla Turbine, air, steam, oil, or any other fluid is injected at the edge of a series of smooth parallel disks. The fluid spirals inwards and is exhausted through ventilation ports near the center of the disk...
By: sbtroy

Continue Reading »]]> technology Thu, 25 May 2006 21:28:00 PDT http://www.instructables.com/id/Paper-coffe-cup-flying-controling-models-of-hove/
Paper coffee cup flying & controlled models of hovercrafts - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FI6/ONE5/G8XPCJMW/FI6ONE5G8XPCJMW.SQUARE2.jpg http://img.instructables.com/files/deriv/FI6/ONE5/G8XPCJMW/FI6ONE5G8XPCJMW.SQUARE.jpg http://img.instructables.com/files/deriv/FI6/ONE5/G8XPCJMW/FI6ONE5G8XPCJMW.SMALL.jpg E89PW12G8XPCJMS iPD Materials & tools We will need: - a paper cup - 1 sheet of A4 (or similar size) paper weight 160-250 g/m2 (you can also use the lid from the children's shoe boxes or foam trays for vegetables) - a toothpick - a segment-edge cutter - 9V battery (or similar size block) - an adhesive ta...
By: iPD

Continue Reading »]]> technology Sun, 9 May 2010 11:01:18 PDT http://www.instructables.com/id/Electromagnetic-Floater/
Electromagnetic Floater - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F5M/MGN5/F2FRVEF6/F5MMGN5F2FRVEF6.SQUARE2.jpg http://img.instructables.com/files/deriv/F5M/MGN5/F2FRVEF6/F5MMGN5F2FRVEF6.SQUARE.jpg http://img.instructables.com/files/deriv/F5M/MGN5/F2FRVEF6/F5MMGN5F2FRVEF6.SMALL.jpg E04KZEEF2FRVEHF J_Hodgie This Instructable will show you how to make a device that can float almost any object with a magnet in it. It is much like the floating globes you can buy, except it works by balancing the forces of permanent magnets with electromagnets, rather then simply using combinations of permanent magnets. ...
By: J_Hodgie

Continue Reading »]]> technology Fri, 8 Jun 2007 19:33:26 PDT http://www.instructables.com/id/How-to-Make-Ammonium-Nitrate/ http://img.instructables.com/files/deriv/F7C/G9AV/G8C3UJXC/F7CG9AVG8C3UJXC.SQUARE2.jpg http://img.instructables.com/files/deriv/F7C/G9AV/G8C3UJXC/F7CG9AVG8C3UJXC.SQUARE.jpg http://img.instructables.com/files/deriv/F7C/G9AV/G8C3UJXC/F7CG9AVG8C3UJXC.SMALL.gif EX6F1EAG8C3UJXB NurdRage In this video we make ammonium nitrate from various off-the-shelf chemicals. Note: This is not cheaper than buying it directly, once again our objective is to explore the chemistry. Warning: The chemicals are corrosive and ammonia has a horrible smell, work outside or in a fumehood and wear gloves...
By: NurdRage

Continue Reading »]]> technology Sat, 24 Apr 2010 18:42:31 PDT http://www.instructables.com/id/Apple-iPad-being-Taken-Apart/ http://img.instructables.com/files/deriv/F87/GWZN/G7DYYN18/F87GWZNG7DYYN18.SQUARE2.jpg http://img.instructables.com/files/deriv/F87/GWZN/G7DYYN18/F87GWZNG7DYYN18.SQUARE.jpg http://img.instructables.com/files/deriv/F87/GWZN/G7DYYN18/F87GWZNG7DYYN18.SMALL.jpg EXZ9XP7G7DYYN08 powerbookmedic  This is a slideshow of the Apple iPad being taken apart.  High-Def Videos and iPad parts are available from our website: http://www.powerbookmedic.com/ipad
By: powerbookmedic

Continue Reading »]]> technology Mon, 5 Apr 2010 14:18:58 PDT http://www.instructables.com/id/Make-a-Cloud-Chamber-using-Peltier-Coolers/
Make a Cloud Chamber using Peltier Coolers - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FC7/S3B8/G6MPMMXD/FC7S3B8G6MPMMXD.SQUARE2.jpg http://img.instructables.com/files/deriv/FC7/S3B8/G6MPMMXD/FC7S3B8G6MPMMXD.SQUARE.jpg http://img.instructables.com/files/deriv/FC7/S3B8/G6MPMMXD/FC7S3B8G6MPMMXD.SMALL.jpg EDNZ9K9G6MPGGX7 nothinglabs Cloud chambers let you see vapor trails left by radioactive particles! A version of this cloud chamber is now available for purchase (fully assembled and tested) from http://www.nothinglabs.com Discuss cloud chamber assembly and radioactive samples at http://forum.nothinglabs.com Cloud cha...
By: nothinglabs

Continue Reading »]]> technology Sat, 20 Mar 2010 04:23:45 PDT http://www.instructables.com/id/Using-a-Digital-Camera-as-a-Second-pair-eyes-and-m/
Using a Digital Camera as a Second pair eyes and magnifying glass. - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FAP/V1VA/G6MPFT4M/FAPV1VAG6MPFT4M.SQUARE2.jpg http://img.instructables.com/files/deriv/FAP/V1VA/G6MPFT4M/FAPV1VAG6MPFT4M.SQUARE.jpg http://img.instructables.com/files/deriv/FAP/V1VA/G6MPFT4M/FAPV1VAG6MPFT4M.SMALL.jpg ENNZYG7G6MPFT54 spiderfurby I discovered recently while doing a small electronic project that my eye sight was not up to scratch as I first thought. Unfortunately, I thought I could work past my short comings and I proceeded with putting my project together. This resulted in my project not working as well as I wished and als...
By: spiderfurby

Continue Reading »]]> technology Sat, 13 Mar 2010 17:41:56 PST http://www.instructables.com/id/Core3duino/
Core3duino - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F79/QUVH/G6MPPBFQ/F79QUVHG6MPPBFQ.SQUARE2.jpg http://img.instructables.com/files/deriv/F79/QUVH/G6MPPBFQ/F79QUVHG6MPPBFQ.SQUARE.jpg http://img.instructables.com/files/deriv/F79/QUVH/G6MPPBFQ/F79QUVHG6MPPBFQ.SMALL.jpg E175342G68H9QPD johndavid400 This is an addon shield to an addon shield. That's right, you have to have the Core2duino on your Arduino to be able to understand why you would want this in the first place. So once you have your Core2duino saddled up, give this one a shot (you don't technically have to have the core2duino to use t...
By: johndavid400

Continue Reading »]]> technology Fri, 12 Mar 2010 21:16:57 PST http://www.instructables.com/answers/What-and-were-is-the-best-place-for-a-noobie-Like-/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QFC7OQIG68H9WPH linc5885 As I stated in the question I am totally new at all this, I am mechanically capable of tons of stuff , for example my mechanic has never seen my car :), I have always been a wonderer what if , I come up with these ideas and nothing Mainly cause I have no idea were to start, so I am seeking Guidance ...
By: linc5885

Continue Reading »]]> technology Mon, 8 Mar 2010 18:52:07 PST http://www.instructables.com/id/DIY-Digital-Caliper-Micrometer-Comparator/
DIY Digital Caliper Micrometer Comparator - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F4D/LIX0/G68H9U3L/F4DLIX0G68H9U3L.SQUARE2.jpg http://img.instructables.com/files/deriv/F4D/LIX0/G68H9U3L/F4DLIX0G68H9U3L.SQUARE.jpg http://img.instructables.com/files/deriv/F4D/LIX0/G68H9U3L/F4DLIX0G68H9U3L.SMALL.jpg EA95DSEG68H9U1S iectyx3c Get precise measurements with a cheap desktop scanner. Using free software, you can measure part sizes with a resolution of less than a mil ( 1/1000 inch or about 25 microns ). Great for identifying mystery micro-screws, electronics, camera parts, or even measuring plants or insects. Tips and tr...
By: iectyx3c

Continue Reading »]]> technology Mon, 8 Mar 2010 11:50:53 PST http://www.instructables.com/id/Parallel-Port-3-Axis-CNC-Driver-Opto-Isolated/
Parallel Port 3 Axis CNC Driver, Opto-Isolated, Unipolar Steppers - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FLB/TZR6/G56ZQ2LR/FLBTZR6G56ZQ2LR.SQUARE2.jpg http://img.instructables.com/files/deriv/FLB/TZR6/G56ZQ2LR/FLBTZR6G56ZQ2LR.SQUARE.jpg http://img.instructables.com/files/deriv/FLB/TZR6/G56ZQ2LR/FLBTZR6G56ZQ2LR.SMALL.jpg ETHI2JYG3KYGAJG ChromationSystems Controls 3 Unipolar Stepper Motors, for use with CNC Machines. Simple driver with automatic coil  shutdown, to ensure efficient operation.  Opto-isolated for protection of the P.C. Supports most parallel port based CNC software, such as KCAM. Supports up to 20 watts per Phase. Or 2 Amps per phase....
By: ChromationSystems

Continue Reading »]]> technology Thu, 4 Mar 2010 22:11:58 PST http://www.instructables.com/id/DIY-Lightning-Wand-a-Handheld-Van-de-Graaff-Genera/
DIY Lightning Wand -- A Handheld Van de Graaff Generator - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FSB/248I/G61ASDY7/FSB248IG61ASDY7.SQUARE2.jpg http://img.instructables.com/files/deriv/FSB/248I/G61ASDY7/FSB248IG61ASDY7.SQUARE.jpg http://img.instructables.com/files/deriv/FSB/248I/G61ASDY7/FSB248IG61ASDY7.SMALL.jpg EDR9NW4G61AWMF1 yardleydobon Most instructions for building a Van de Graaff generator (VDG) are for tabletop models; however VDGs grounded through a person work well enough to make a handheld version possible. The Fun Fly Stick, a popular toy, is an example of a handheld VDG. This instructable will show you how to make your own...
By: yardleydobon

Continue Reading »]]> technology Tue, 2 Mar 2010 02:33:54 PST http://www.instructables.com/answers/How-to-wire-this-microphone/ http://img.instructables.com/files/deriv/FPP/5UN4/G61AS4IO/FPP5UN4G61AS4IO.SQUARE2.jpg http://img.instructables.com/files/deriv/FPP/5UN4/G61AS4IO/FPP5UN4G61AS4IO.SQUARE.jpg http://img.instructables.com/files/deriv/FPP/5UN4/G61AS4IO/FPP5UN4G61AS4IO.SMALL.jpg QFJG9N0G61AS4IQ oscarthompson I am wondering how to wire this microphone. I took it off an old kit and i am just wandering as it may come in hand. Thanks Oscar
By: oscarthompson

Continue Reading »]]> technology Fri, 26 Feb 2010 14:04:21 PST http://www.instructables.com/answers/How-do-I-calculate-an-LED-power-supply/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QHSHHB5G61AS4EM slysimon  Okay, I don't know a lot about LED's but here's what I've done so far. I bought some 12v LED strips and used them to surround a display in my shop. I soldered all the strips together and attached my bench supply.  The LED's seem pretty forgiving and I can run them at a reasonable brightness at anyt...
By: slysimon

Continue Reading »]]> technology Fri, 26 Feb 2010 13:07:32 PST http://www.instructables.com/answers/MacBook-ProMacBook-Pro-2010/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QEOGJ85G29ZFKXI 2001warrior OK, I am in the market for my first laptop.        My family has been on a Gateway running Windows XP Home Edition since 2002. I have two siblings and a mother who is a pre-k teacher (uses this computer 24/7 for lesson plans). I hardly get anytime on this thing. I am looking at a 15" MacBook Pro. I ...
By: 2001warrior

Continue Reading »]]> technology Mon, 23 Nov 2009 16:47:42 PST http://www.instructables.com/id/How-to-survey-breeding-birds-UK/
How to survey breeding birds (UK) - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FMM/2S8L/GKLIWKFI/FMM2S8LGKLIWKFI.SQUARE2.jpg http://img.instructables.com/files/deriv/FMM/2S8L/GKLIWKFI/FMM2S8LGKLIWKFI.SQUARE.jpg http://img.instructables.com/files/deriv/FMM/2S8L/GKLIWKFI/FMM2S8LGKLIWKFI.SMALL.jpg EN17U1RG5W7QQW0 Kiteman As well as being an absorbing hobby, birdwatching is also a source of important data about the environment. In the UK, it is very easy to get involved with surveying birds through the British Trust for Ornithology. They run a number of different kinds of survey throughout the year, each with a dif...
By: Kiteman

Continue Reading »]]> technology Mon, 22 Feb 2010 14:54:59 PST http://www.instructables.com/answers/Windmill-Generator-why-wont-a-small-brush-less-/ http://img.instructables.com/files/deriv/FDW/EFOH/G5LEK58Y/FDWEFOHG5LEK58Y.SQUARE2.jpg http://img.instructables.com/files/deriv/FDW/EFOH/G5LEK58Y/FDWEFOHG5LEK58Y.SQUARE.jpg http://img.instructables.com/files/deriv/FDW/EFOH/G5LEK58Y/FDWEFOHG5LEK58Y.SMALL.jpg QT9X7OPG5LEK59B jimk3038 I bought a small brush-less motor that was designed as a motor for a small RC plane. I tested it by spinning it with a drill. I was surprised to find that the motor did not generate much in the way of voltage. Why not? It's too bad - many small brush-less motors are so nice. No brushes, ball bearin...
By: jimk3038

Continue Reading »]]> technology Wed, 17 Feb 2010 20:21:54 PST http://www.instructables.com/answers/Is-it-possible-to-power-a-device-that-takes-two-AA/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QD1AQKFG5LEK7UH pissinguoff247 I have a small fountain that takes two AA batteries.  It looks great sitting on my desk but I'd love to have it powered off of my USB rather than go through AA's all the time.  Is it possible to use the power from a USB port to power the device, and if so, what would need to be built (as far as circ...
By: pissinguoff247

Continue Reading »]]> technology Thu, 18 Feb 2010 08:00:47 PST http://www.instructables.com/answers/Can-you-make-a-Van-De-Graaf-WITHOUT-having-the-bel/ http://img.instructables.com/files/deriv/FST/4CY8/G5KPB6G8/FST4CY8G5KPB6G8.SQUARE2.jpg http://img.instructables.com/files/deriv/FST/4CY8/G5KPB6G8/FST4CY8G5KPB6G8.SQUARE.jpg http://img.instructables.com/files/deriv/FST/4CY8/G5KPB6G8/FST4CY8G5KPB6G8.SMALL.jpg Q6P2EHYG5KPB6GH Evilthingamabober  I've noticed that most Van De Graaf machines have their belt assembly in a tube/pipe. But wouldn't it be possible to just have a frame holding the rollers instead of having them be enclosed? Sure, the belt won't be protected, but I don't really give a damn.
By: Evilthingamabober

Continue Reading »]]> technology Thu, 18 Feb 2010 11:19:48 PST http://www.instructables.com/answers/What-is-the-best-way-to-dispose-of-used-alcohol-cl/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif Q1WEIMOG51GRIBT SFHandyman My electric razor cleans itself with alcohol. I need to change the fluid every few months. What is the greenest way to dispose of the dirty alcohol? I can't decide if it is better to flush, burn, or evaporate it. I think it contains some methanol (probably  - it is 'denatured'). The can doesn't sa...
By: SFHandyman

Continue Reading »]]> technology Sat, 30 Jan 2010 14:50:27 PST http://www.instructables.com/answers/How-does-one-dual-boot-windows-7-and-linux-mint-wi/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif Q6DBN72G5FRGKLK junits15 So I recently upgraded my laptop, i swapped out the old 80GB HDD for a shiny new 120GB SSD, and I installed windows 7, I would like to know how to dual boot windows 7 and linux mint.  I've searched google, but all i find are forums where I dont understand the terminology that the users use.  I was w...
By: junits15

Continue Reading »]]> technology Wed, 10 Feb 2010 05:16:48 PST http://www.instructables.com/id/Desktop-Michelson-Morely-Interferometer/
Desktop Michelson-Morely Interferometer - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FOZ/2TBJ/G5FR58RB/FOZ2TBJG5FR58RB.SQUARE2.jpg http://img.instructables.com/files/deriv/FOZ/2TBJ/G5FR58RB/FOZ2TBJG5FR58RB.SQUARE.jpg http://img.instructables.com/files/deriv/FOZ/2TBJ/G5FR58RB/FOZ2TBJG5FR58RB.SMALL.jpg EPSOUT3G2HDXPGH jrcgarry Over the years I've had to measure some unusual processes in systems, and one of the most common 'tough' problems has been the measurement of displacement. For mm-scale motion I've used mice (mechanical and optical) to record movement, but I once found myself needing to record nanometric scale displ...
By: jrcgarry

Continue Reading »]]> technology Sun, 7 Feb 2010 21:58:28 PST http://www.instructables.com/id/10-minute-trash-bag-hot-air-balloons/
10 minute trash/garbage/bin bag hot air balloons - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FM0/Z838/G51GAH6H/FM0Z838G51GAH6H.SQUARE2.jpg http://img.instructables.com/files/deriv/FM0/Z838/G51GAH6H/FM0Z838G51GAH6H.SQUARE.jpg http://img.instructables.com/files/deriv/FM0/Z838/G51GAH6H/FM0Z838G51GAH6H.SMALL.jpg EBXH930G51GAH6G tim_n Rain fire from the sky with this mockery of a Chinese balloon! This instructable requires: - A couple of meters of incredibly thin wire. - Cheapest trash bag/bin bag liner you can find (these are the sort of bags bin men hate as they split if you look at them funny) - A couple of balls of cotton woo...
By: tim_n

Continue Reading »]]> technology Mon, 8 Feb 2010 11:47:39 PST http://www.instructables.com/id/How-To-Make-A-Stunt-Paper-Airplane/
How To Make A Stunt Paper Airplane - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F8G/PK13/G51G5X8J/F8GPK13G51G5X8J.SQUARE2.jpg http://img.instructables.com/files/deriv/F8G/PK13/G51G5X8J/F8GPK13G51G5X8J.SQUARE.jpg http://img.instructables.com/files/deriv/F8G/PK13/G51G5X8J/F8GPK13G51G5X8J.SMALL.jpg EKM8LZSG51GEX5U SpeedStrikerXLR   Video of it flying  ok so here it is, you guys asked for one, ill give you one Materials  The only material you will need is paper. Lets Get Started  first, your going to fold the paper like your about to make a square. then you do the same to the other side. open the paper out and turn...
By: SpeedStrikerXLR

Continue Reading »]]> technology Sun, 31 Jan 2010 08:44:11 PST http://www.instructables.com/id/Make-Your-Own-Miniature-Electric-Hub-Motor/
Make Your Own Miniature Electric Hub Motor - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FD7/4LYB/G51GEOJV/FD74LYBG51GEOJV.SQUARE2.jpg http://img.instructables.com/files/deriv/FD7/4LYB/G51GEOJV/FD74LYBG51GEOJV.SQUARE.jpg http://img.instructables.com/files/deriv/FD7/4LYB/G51GEOJV/FD74LYBG51GEOJV.SMALL.jpg EAF590ZG51GEOJ7 teamtestbot In-wheel electric drive motors represent an effective method of providing propulsion to vehicles which otherwise were not designed to have driven wheels. That is, they're great for EV hacking and conversion. They're compact and modular, require no support of rotating axles from the parent vehicle, ...
By: teamtestbot

Continue Reading »]]> technology Sun, 31 Jan 2010 18:01:16 PST http://www.instructables.com/id/How-To-Build-A-Vacuum-Tube-Tesla-Coil-VTTC/
How To Build A Vacuum Tube Tesla Coil (VTTC) - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FLJ/NZ7X/FVMVC4T0/FLJNZ7XFVMVC4T0.SQUARE2.jpg http://img.instructables.com/files/deriv/FLJ/NZ7X/FVMVC4T0/FLJNZ7XFVMVC4T0.SQUARE.jpg http://img.instructables.com/files/deriv/FLJ/NZ7X/FVMVC4T0/FLJNZ7XFVMVC4T0.SMALL.jpg EG7YJTVFVMVC491 Xellers Can't find a neon sign transformer? Want to build your first Tesla Coil without facing the complexities of going solid state? Here's some good news: Vacuum tube Tesla Coils, which have been making a comeback in recent years, can be just as rewarding as any other type of coil without breaking the ban...
By: Xellers

Continue Reading »]]> technology Tue, 12 Jan 2010 13:42:25 PST http://www.instructables.com/id/Tesla-Tornado-Christmas-Tree/
Tesla Tornado Christmas Tree - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FSK/4TYV/G3KYBJ7G/FSK4TYVG3KYBJ7G.SQUARE2.jpg http://img.instructables.com/files/deriv/FSK/4TYV/G3KYBJ7G/FSK4TYVG3KYBJ7G.SQUARE.jpg http://img.instructables.com/files/deriv/FSK/4TYV/G3KYBJ7G/FSK4TYVG3KYBJ7G.SMALL.jpg E2DT8YLG3KYBJ3V mrfixitrick Here is a Christmas tree with a twist!  This metre-high tube uses a magnetically-driven Tesla Pump to create a beautiful water vortex. With green food colouring and lights behind it, it makes an awesome alternative to a Christmas tree! Nikola Tesla patented the Tesla Pump (U.S. patent #1,061,142) ...
By: mrfixitrick

Continue Reading »]]> technology Mon, 28 Dec 2009 00:03:31 PST http://www.instructables.com/id/Christmas-card-with-inbuilt-retro-video-game-for-u/
Christmas card with inbuilt retro video game for under $10 - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FJX/G8OZ/G3KY0RP8/FJXG8OZG3KY0RP8.SQUARE2.jpg http://img.instructables.com/files/deriv/FJX/G8OZ/G3KY0RP8/FJXG8OZG3KY0RP8.SQUARE.jpg http://img.instructables.com/files/deriv/FJX/G8OZ/G3KY0RP8/FJXG8OZG3KY0RP8.SMALL.jpg EN9LAJTG3KYB9S9 bradsprojects Hello all and welcome to my second Christmas related project. Have you ever received a really boring Christmas card? Have you ever sat there and thought to yourself "If only there were a little video game on this card that I could play..." Well ponder no more because that card is here! This instru...
By: bradsprojects

Continue Reading »]]> technology Sun, 27 Dec 2009 06:02:15 PST http://www.instructables.com/id/How-to-build-a-Tesla-Coil/
How to build a Tesla Coil - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FS6/P585/FVS7L8WI/FS6P585FVS7L8WI.SQUARE2.jpg http://img.instructables.com/files/deriv/FS6/P585/FVS7L8WI/FS6P585FVS7L8WI.SQUARE.jpg http://img.instructables.com/files/deriv/FS6/P585/FVS7L8WI/FS6P585FVS7L8WI.SMALL.jpg EGSSC2TFSMSY8YJ DevCoder This Instructable will walk you through building a medium sized Tesla coil. DANGER Unlike some other high voltage experiments, a Tesla coil's streamers can be very harmful. If you are shocked by the streamers, you will not feel pain, but your circulatory and nervous system can sustain severe dama...
By: DevCoder

Continue Reading »]]> technology Sat, 18 Apr 2009 18:44:09 PDT http://www.instructables.com/id/Arduino-True-Battery-Capacity-Tester-Li-IonNiMH/
Arduino True Battery Capacity Tester (Li-Ion/NiMH/NiCD/Pb) - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FZP/2D13/G1QVZ3J0/FZP2D13G1QVZ3J0.SQUARE2.jpg http://img.instructables.com/files/deriv/FZP/2D13/G1QVZ3J0/FZP2D13G1QVZ3J0.SQUARE.jpg http://img.instructables.com/files/deriv/FZP/2D13/G1QVZ3J0/FZP2D13G1QVZ3J0.SMALL.jpg E9S66RGG1QWB0WZ moris_zen  If anyone saw my last instructable "Simple Li-Ion Battery Power Tester" they can now upgrade to a computerized hi-tech version that is capable of measuring almost any type of rechargeable or none rechargeable batteries (but it will drain one charge from them in the process).It can even connect to a...
By: moris_zen

Continue Reading »]]> technology Tue, 10 Nov 2009 13:12:57 PST http://www.instructables.com/id/Space-Frame-Structure-Force-Sensors/
Space Frame Structure Force Sensors - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FTX/8ULH/G1QWAY46/FTX8ULHG1QWAY46.SQUARE2.jpg http://img.instructables.com/files/deriv/FTX/8ULH/G1QWAY46/FTX8ULHG1QWAY46.SQUARE.jpg http://img.instructables.com/files/deriv/FTX/8ULH/G1QWAY46/FTX8ULHG1QWAY46.SMALL.jpg E9NT9SUG1QWAXVH kronick Space frames are super efficient structures made entirely from straight pieces of material, joined together at their ends to form complex 3D shapes.They can look like this, this, or this. They can be gigantic, but are also cool on a small scale, like this space frame bench I built.Their advantages i...
By: kronick

Continue Reading »]]> technology Tue, 10 Nov 2009 01:25:42 PST http://www.instructables.com/id/How-to-make-a-hexaflexagon/
How to make a hexaflexagon - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FLQ/41BU/FE379CQ0/FLQ41BUFE379CQ0.SQUARE2.jpg http://img.instructables.com/files/deriv/FLQ/41BU/FE379CQ0/FLQ41BUFE379CQ0.SQUARE.jpg http://img.instructables.com/files/deriv/FLQ/41BU/FE379CQ0/FLQ41BUFE379CQ0.SMALL.jpg ERLBWY6FE379CQZ nerdnurture This is another magic pocket study tool I teach my students how to make. It is what is called a trihexaflexagon, which means basically a hexagon you can turn inside out to reveal a total of 3 complete faces (or sides of the paper). They put notes on these things and keep them in their pockets to m...
By: nerdnurture

Continue Reading »]]> technology Fri, 21 Mar 2008 17:58:59 PDT http://www.instructables.com/id/Hydroponic-Drip-Garden-for-Vegetables-Herbs-or-Fl/
Hydroponic Drip Garden for Vegetables, Herbs or Flowers - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FYK/IVNY/FSSIQIM5/FYKIVNYFSSIQIM5.SQUARE2.jpg http://img.instructables.com/files/deriv/FYK/IVNY/FSSIQIM5/FYKIVNYFSSIQIM5.SQUARE.jpg http://img.instructables.com/files/deriv/FYK/IVNY/FSSIQIM5/FYKIVNYFSSIQIM5.SMALL.jpg E0LFRVOFSSIQIM9 dirty_valentine The picture below shows the two hydroponic drip systems I built that are covered by this instructable. The prototype system was built about 3 weeks prior to the taking of the picture. All the plants currently residing in the prototype are between 1 and 2 1/2 weeks old. The prototype has been working...
By: dirty_valentine

Continue Reading »]]> technology Sat, 4 Apr 2009 22:54:31 PDT http://www.instructables.com/id/Leyden-Jar-Battery-for-Tesla-Coils/
Leyden Jar Battery for Tesla Coils - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F8T/E3OM/FYTCI55T/F8TE3OMFYTCI55T.SQUARE2.jpg http://img.instructables.com/files/deriv/F8T/E3OM/FYTCI55T/F8TE3OMFYTCI55T.SQUARE.jpg http://img.instructables.com/files/deriv/F8T/E3OM/FYTCI55T/F8TE3OMFYTCI55T.SMALL.jpg EAO731YFYTCI55C Mr. Apol A number of people have asked how I made the Leyden jar array used with the "Tabletop Tesla Coil." In this separate Instructable I offer a detailed explanation of how the battery was made and what it can do. Historical footnote: Ben Franklin created the term "Leyden battery" to describe grou...
By: Mr. Apol

Continue Reading »]]> technology Tue, 6 Oct 2009 11:16:21 PDT http://www.instructables.com/id/Bedazzler-DIY-non-lethal-weaponry/
Bedazzler: DIY non-lethal weaponry - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FUJ/ISTE/G0AMJY66/FUJISTEG0AMJY66.SQUARE2.jpg http://img.instructables.com/files/deriv/FUJ/ISTE/G0AMJY66/FUJISTEG0AMJY66.SQUARE.jpg http://img.instructables.com/files/deriv/FUJ/ISTE/G0AMJY66/FUJISTEG0AMJY66.SMALL.jpg ES4JH87G0AMJL8Y adafruit Our first open source Homeland Security non-lethal weapon project - The "THE BEDAZZLER: A Do-it-yourself Handheld LED-Incapacitator".After attending a conference where the $1 million "sea-sick flashlight" (named "THE DAZZLER") was demonstrated by the US Dept. of Homeland Security, we decided to cr...
By: adafruit

Continue Reading »]]> technology Sun, 4 Oct 2009 19:06:45 PDT http://www.instructables.com/id/Portable-Sun-Tracking-Solar-Panel-With-A-Windup-Cl/
Portable Sun Tracking Solar Panel With A Windup Clock Drive - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FE6/NXEA/FX5571BZ/FE6NXEAFX5571BZ.SQUARE2.jpg http://img.instructables.com/files/deriv/FE6/NXEA/FX5571BZ/FE6NXEAFX5571BZ.SQUARE.jpg http://img.instructables.com/files/deriv/FE6/NXEA/FX5571BZ/FE6NXEAFX5571BZ.SMALL.jpg EGEMH38FQR1WIKS shastalore I've just designed and built a homemade solar tracker than can be easily set to accurately align to the altitude of the sun (as it changes daily, with the seasons), and also faithfully track the sun, from sunrise to sunset. The tracking ability of the panel provides about 40% more power than a fixed...
By: shastalore

Continue Reading »]]> technology Tue, 3 Feb 2009 22:11:04 PST http://www.instructables.com/id/Tsunami-Model/
Tsunami Model - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FOC/N3IV/G068I98R/FOCN3IVG068I98R.SQUARE2.jpg http://img.instructables.com/files/deriv/FOC/N3IV/G068I98R/FOCN3IVG068I98R.SQUARE.jpg http://img.instructables.com/files/deriv/FOC/N3IV/G068I98R/FOCN3IVG068I98R.SMALL.jpg EL8IHWUG068I975 walkalongaviation Ever wonder what a tsunami is? Turns out tsunami follow the same physics as shallow water waves on an unimaginable scale (where the ocean, miles deep, is shallow compared to the length of the wave). Here 3 gutter segments are duct taped together to create a shallow water wave tank: The 3 sections of...
By: walkalongaviation

Continue Reading »]]> technology Thu, 1 Oct 2009 12:57:34 PDT http://www.instructables.com/id/The-Office-Workers-Portable-Solar-Oven/
The Office Worker's Portable Solar Oven - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FWG/ARE6/G068LSXU/FWGARE6G068LSXU.SQUARE2.jpg http://img.instructables.com/files/deriv/FWG/ARE6/G068LSXU/FWGARE6G068LSXU.SQUARE.jpg http://img.instructables.com/files/deriv/FWG/ARE6/G068LSXU/FWGARE6G068LSXU.SMALL.jpg EYATZEMG068LSZ4 z0rb In keeping with the grand tradition of creating ways to warm my lunch at work with readily available office supplies, I present for your review, dear reader The Office Worker's Portable Solar Oven. The Situation Due to circumstances beyond my control, my cubicle at work is close to both the bre...
By: z0rb

Continue Reading »]]> technology Tue, 29 Sep 2009 19:01:55 PDT http://www.instructables.com/id/Make-an-indoor-boomerang/
Make an indoor/outdoor boomerang - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F9M/FHKP/FZG43U03/F9MFHKPFZG43U03.SQUARE2.jpg http://img.instructables.com/files/deriv/F9M/FHKP/FZG43U03/F9MFHKPFZG43U03.SQUARE.jpg http://img.instructables.com/files/deriv/F9M/FHKP/FZG43U03/F9MFHKPFZG43U03.SMALL.jpg ESN9HSHFZQ1GDGO logangina This originally designed to be indoor, but will work outdoors.Make an indoor/outdoor boomerang that actually comes back.I recently bought a three winged boomerang, it is the only boomerang that I have boughten that actually comes back. When I showed it to my friends they all wanted one, but there i...
By: logangina

Continue Reading »]]> technology Sun, 20 Sep 2009 18:01:44 PDT http://www.instructables.com/id/Make-Your-Own-Black-Hole/
Make Your Own: Black Hole Fabricator!! - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F5Z/I8LA/FZQ1GQO9/F5ZI8LAFZQ1GQO9.SQUARE2.jpg http://img.instructables.com/files/deriv/F5Z/I8LA/FZQ1GQO9/F5ZI8LAFZQ1GQO9.SQUARE.jpg http://img.instructables.com/files/deriv/F5Z/I8LA/FZQ1GQO9/F5ZI8LAFZQ1GQO9.SMALL.jpg E23XQMUFZQ1GQM1 007dna This will tell you how to make a real, down to earth black hole. I swear this is a real instructable! Now, if you have the money, I invite you to build this project. Guaranteed that the FBI doesn't blow your house up first. So, I will also tell you that, because I haven't the money, I have not exact...
By: 007dna

Continue Reading »]]> technology Mon, 21 Sep 2009 13:30:27 PDT http://www.instructables.com/id/Making-a-Scabies-Skin-Scraping-Kit/
Making a Scabies Skin Scraping Kit - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FF8/1B8Z/FZQ1GK9B/FF81B8ZFZQ1GK9B.SQUARE2.jpg http://img.instructables.com/files/deriv/FF8/1B8Z/FZQ1GK9B/FF81B8ZFZQ1GK9B.SQUARE.jpg http://img.instructables.com/files/deriv/FF8/1B8Z/FZQ1GK9B/FF81B8ZFZQ1GK9B.SMALL.jpg ECNV5WKFZQ1GJXV siderits Richard Siderits, MDChristopher Sereni, MSIIISujal Singh, Experimental Pathology TeamVideo of Live mites under the microscopeHigh magnification videoThis video shows the appropriate pressure to exert on skin when doing a skin scraping for scabies. Scabies is a highly contagious parasitic infecti...
By: siderits

Continue Reading »]]> technology Mon, 21 Sep 2009 11:47:14 PDT http://www.instructables.com/answers/How-can-lasers-not-in-the-infrared-spectrum-create/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QTG2ZTXFZQ1FR76 cinamun If infrade light is the only kind that carries heat, then how can other wavelenghts burn stuff?
By: cinamun

Continue Reading »]]> technology Sat, 19 Sep 2009 09:13:34 PDT http://www.instructables.com/answers/What-phrase-would-you-paste-on-a-five-foot-cannon-/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QRRU7ROFZHL9V3S littlechef37 Exactly what the title is asking.
By: littlechef37

Continue Reading »]]> technology Mon, 14 Sep 2009 09:41:31 PDT http://www.instructables.com/answers/can-any-body-help-me-in-the-construction-of-a-wind/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QIMV69AFYYNE129 mysolar can anybody help me to do a study abt the components of the wind mill ?
By: mysolar

Continue Reading »]]> technology Mon, 31 Aug 2009 06:47:42 PDT http://www.instructables.com/id/Cardboard-van-Leeuwenhoek-microscope/
Cardboard van Leeuwenhoek microscope - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F11/SDU1/FYTCOQK7/F11SDU1FYTCOQK7.SQUARE2.jpg http://img.instructables.com/files/deriv/F11/SDU1/FYTCOQK7/F11SDU1FYTCOQK7.SQUARE.jpg http://img.instructables.com/files/deriv/F11/SDU1/FYTCOQK7/F11SDU1FYTCOQK7.SMALL.jpg EEFLTO5FYTCOMTX ChrysN This is a replica of Antonie van Leeuwenhoek's microscope made from cardboard, bamboo skewers and a lens made from a pen light.Antonie van Leeuwenhoek's microscope enabled him to see single celled organisms which he called "animalcules" and helped earn him the name "the Father of Microbiology". M...
By: ChrysN

Continue Reading »]]> technology Thu, 27 Aug 2009 06:43:55 PDT http://www.instructables.com/id/Make-a-Pencils-Lead-Potentiometer-Experimentatio/
Make a Pencil's Lead Potentiometer (Experimentations) - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FT2/0RDB/FYTCOYCS/FT20RDBFYTCOYCS.SQUARE2.jpg http://img.instructables.com/files/deriv/FT2/0RDB/FYTCOYCS/FT20RDBFYTCOYCS.SQUARE.jpg http://img.instructables.com/files/deriv/FT2/0RDB/FYTCOYCS/FT20RDBFYTCOYCS.SMALL.jpg ERKPDMGFYIZ4HEF Patented Here is a really simple experiment in witch you will make a Kind of potentiometer (Variable Resistor) out of a sheet of paper and a graphite pencil (Lead Pencil)... Impossible you think? Check it out!So first , What is a Potentiometer?Its not very complicated, to make it short, it's a kind of resi...
By: Patented

Continue Reading »]]> technology Wed, 26 Aug 2009 13:55:31 PDT http://www.instructables.com/id/Knex-Buckyball/
Knex Buckyball - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FZ9/BB5B/FY1ZA49K/FZ9BB5BFY1ZA49K.SQUARE2.jpg http://img.instructables.com/files/deriv/FZ9/BB5B/FY1ZA49K/FZ9BB5BFY1ZA49K.SQUARE.jpg http://img.instructables.com/files/deriv/FZ9/BB5B/FY1ZA49K/FZ9BB5BFY1ZA49K.SMALL.jpg EYJ3KBIFY1ZA47K ergolicious Everyone likes buckyballs, so what I did was make my a buckyball structure out of k'nex. It's fairly easy to build and can be built in about 15 minutes.For this project you will need- 60 full moon connectors- 60 blue flexi rods- 30 normal blue rods150 pieces total. Making the pentagons First thin...
By: ergolicious

Continue Reading »]]> technology Fri, 7 Aug 2009 11:33:03 PDT http://www.instructables.com/id/How-to-Make-Bi-Directional-Flex-Sensors/
How to Make Bi-Directional Flex Sensors - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FFS/NCS8/FXK6A3MK/FFSNCS8FXK6A3MK.SQUARE2.jpg http://img.instructables.com/files/deriv/FFS/NCS8/FXK6A3MK/FFSNCS8FXK6A3MK.SQUARE.jpg http://img.instructables.com/files/deriv/FFS/NCS8/FXK6A3MK/FFSNCS8FXK6A3MK.SMALL.jpg E5ILXTFFXK6A3J9 jiovine Flex sensors are passive resistive devices that can be used to detect bending or flexing. The flex sensor shown in this article is a bi-directional flex sensor that decreases its resistance in proportion to the amount it is bent in either direction. The sensor we are building is about 3/8" wide by 5...
By: jiovine

Continue Reading »]]> technology Sat, 25 Jul 2009 11:41:37 PDT http://www.instructables.com/id/Lego-Microtome/
Lego Microtome - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FRD/YSKT/FXA300AG/FRDYSKTFXA300AG.SQUARE2.jpg http://img.instructables.com/files/deriv/FRD/YSKT/FXA300AG/FRDYSKTFXA300AG.SQUARE.jpg http://img.instructables.com/files/deriv/FRD/YSKT/FXA300AG/FRDYSKTFXA300AG.SMALL.jpg EZI123CFXA2ZC5D lemonie A what?A microtome is a machine which cuts (usu.) biological specimens into very thin sections. The sections are typically mounted on microscope-slides.This was an idea I had, I did it, and I've demonstrated it with garlicIt creates slices 250 microns thick**calculated If anyone is actually thinking...
By: lemonie

Continue Reading »]]> technology Mon, 20 Jul 2009 13:56:00 PDT http://www.instructables.com/id/Pocket-Sized-Soldering-Kit-Cold-Heat-Hack/
Pocket Sized Soldering Kit (Cold Heat Hack) - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FIC/NYWE/FXA2TWQY/FICNYWEFXA2TWQY.SQUARE2.jpg http://img.instructables.com/files/deriv/FIC/NYWE/FXA2TWQY/FICNYWEFXA2TWQY.SQUARE.jpg http://img.instructables.com/files/deriv/FIC/NYWE/FXA2TWQY/FICNYWEFXA2TWQY.SMALL.jpg E3XBUMZFXA2YTMK iculus It's the final two minutes of the best football game of the season, your team is up by seven and the opposition has the ball on your 10 yard line. The football is hiked, and as instantly as the ball leaves the centers hands, the TV looses power due to that loose wire you have been putting off fixin...
By: iculus

Continue Reading »]]> technology Sun, 19 Jul 2009 23:11:26 PDT http://www.instructables.com/id/Water-Rocket-Launch-Abort-Valve/
Water Rocket Launch Abort Valve - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FLS/QBE3/FX23VKYG/FLSQBE3FX23VKYG.SQUARE2.jpg http://img.instructables.com/files/deriv/FLS/QBE3/FX23VKYG/FLSQBE3FX23VKYG.SQUARE.jpg http://img.instructables.com/files/deriv/FLS/QBE3/FX23VKYG/FLSQBE3FX23VKYG.SMALL.jpg EQMCTG0FX23VKW2 air.command The purpose of this tutorial is to build a simple remotely operated pressure release valve out of common materials requiring no special tools.BackgroundAn abort valve is a very important safety feature of a launcher. On occasions you will encounter a situation where an already pressurised rocket nee...
By: air.command

Continue Reading »]]> technology Mon, 13 Jul 2009 01:48:13 PDT http://www.instructables.com/id/Coffee-Cup-PCR-Thermocycler-costing-under-350/
Coffee Cup - PCR Thermocycler costing under 350$ - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FFK/YONU/FWX11MZI/FFKYONUFWX11MZI.SQUARE2.jpg http://img.instructables.com/files/deriv/FFK/YONU/FWX11MZI/FFKYONUFWX11MZI.SQUARE.jpg http://img.instructables.com/files/deriv/FFK/YONU/FWX11MZI/FFKYONUFWX11MZI.SMALL.jpg EDA08WVFWX11MYR siderits This Instructable will describe how to make a PCR Thermocycler for Field or Teaching applications, from scratch, using a commercial temperature controller, a temperature probe, a PC cooling fan and basic shop tools.The unit performs reliably, is menu driven for programming various PCR (Polymerase Ch...
By: siderits

Continue Reading »]]> technology Mon, 13 Jul 2009 07:23:42 PDT http://www.instructables.com/id/Water-Rocket-Challenge-for-instructable-members/
Water Rocket Challenge (for instructable members!) - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F56/6JAS/FWYHVLUE/F566JASFWYHVLUE.SQUARE2.jpg http://img.instructables.com/files/deriv/F56/6JAS/FWYHVLUE/F566JASFWYHVLUE.SQUARE.jpg http://img.instructables.com/files/deriv/F56/6JAS/FWYHVLUE/F566JASFWYHVLUE.SMALL.jpg EHM5FS0FWYHVLTK oscarthompson BEFORE YOU READ, THE CONTEST HAS FINISHED.In memory with the 40th anniversary of the Apollo missionsI want you.....Instructable members... and I to create Instructables so i scaled maned mission to mars with water rockets is possible for me to make.If you contribute you will have and get all the thi...
By: oscarthompson

Continue Reading »]]> technology Sun, 12 Jul 2009 09:42:37 PDT http://www.instructables.com/id/A-fast-and-flat-cryptex/
A fast and flat coding machine - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FTO/P80Y/FWYHV5D1/FTOP80YFWYHV5D1.SQUARE2.jpg http://img.instructables.com/files/deriv/FTO/P80Y/FWYHV5D1/FTOP80YFWYHV5D1.SQUARE.jpg http://img.instructables.com/files/deriv/FTO/P80Y/FWYHV5D1/FTOP80YFWYHV5D1.SMALL.jpg EXWBWWOFWYHV5BF Papydom When I saw the cryptex Instructable (http://www.instructables.com/id/How-To-Make-a-Cryptex/) I thought: "I will make something like that with my grandson this summer to generate coded messages". He is smart with his hands and he will love building one. I also realized that if we were to play spies, ...
By: Papydom

Continue Reading »]]> technology Sat, 11 Jul 2009 06:18:37 PDT http://www.instructables.com/answers/my-soldering-iron-isnt-working-properly-PLZ-HELP/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QG5SST3FWI9V4R9 ashish_scientific I have just brought a brand new soldering iron. I just plugged it in and kept it aside for a minute (so that it becomes hot ). after a minute or so Inoticed my iron's color gradually became darker (from silver to black). Its a brand new product and now it is not getting hot faster.please help
By: ashish_scientific

Continue Reading »]]> technology Mon, 29 Jun 2009 06:30:54 PDT http://www.instructables.com/answers/Will-standard-compact-fluorescent-light-bulbs-work/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QM3K130FVW22FCT baudeagle adfshg
By: baudeagle

Continue Reading »]]> technology Mon, 15 Jun 2009 19:31:27 PDT http://www.instructables.com/id/Tabletop-Tesla-Coil/
Tabletop Tesla Coil - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F93/JKUE/FVUJHNN4/F93JKUEFVUJHNN4.SQUARE2.jpg http://img.instructables.com/files/deriv/F93/JKUE/FVUJHNN4/F93JKUEFVUJHNN4.SQUARE.jpg http://img.instructables.com/files/deriv/F93/JKUE/FVUJHNN4/F93JKUEFVUJHNN4.SMALL.jpg EYPRLJ5FVS7L0P2 Mr. Apol The frame The frame of the tabletop Tesla is made entirely of half-inch (12.7 mm) PVC pipe. There's no point giving you exact dimensions of the stringers and risers because they depend on how big your secondary coil is. You can scale the frame up or down as you wish. I used a 12 inch...
By: Mr. Apol

Continue Reading »]]> technology Mon, 15 Jun 2009 11:45:48 PDT http://www.instructables.com/answers/What-typeshape-of-metal-ie-tubular-aluminum-/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QNSWCX2FVUJHR1J mad magoo I am building a robot. It will be about 1.5 meters long, about 30 centimeters high, about 40 centimeters wide ( all dimensions excluding wheels, tracks, etc.). It's body will be a metal frame with an outer fiberglass shell. The frame needs to be strong, lightweight, and rugged. I...
By: mad magoo

Continue Reading »]]> technology Fri, 12 Jun 2009 14:02:10 PDT http://www.instructables.com/id/The-Double-Helix-a-DNA-model-with-lights/
The Double Helix -a DNA model with lights - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F9E/B399/FVO9RPRA/F9EB399FVO9RPRA.SQUARE2.jpg http://img.instructables.com/files/deriv/F9E/B399/FVO9RPRA/F9EB399FVO9RPRA.SQUARE.jpg http://img.instructables.com/files/deriv/F9E/B399/FVO9RPRA/F9EB399FVO9RPRA.SMALL.jpg EM4WVBMFVO9ROVM ChrysN DNA models have been made from a lot of different things; candy, Styrofoam, KNEX, etc. I've even made a couple of models myself from beads, but surely there should be a model made from LEDs.... What you will need: Materials:Base or stand -I used a dollar store jewelry box made of wood.LEDs -5 ...
By: ChrysN

Continue Reading »]]> technology Wed, 10 Jun 2009 06:43:33 PDT http://www.instructables.com/id/Fifteen-Minute%2c-Self-propelled-hovercraft/
Fifteen Minute, Self-propelled hovercraft - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F8V/7D86/F0JY1JYE/F8V7D86F0JY1JYE.SQUARE2.jpg http://img.instructables.com/files/deriv/F8V/7D86/F0JY1JYE/F8V7D86F0JY1JYE.SQUARE.jpg http://img.instructables.com/files/deriv/F8V/7D86/F0JY1JYE/F8V7D86F0JY1JYE.SMALL.jpg E2TS3TCCD7ET9K5I1T Dr. No This instructable coves how to build a hovercraft out of a foam tray, cardboard, and some other household items. Materials For this project you need: A foam meat tray (smaller is better) Some non-corrugated cardboard (I used the kind in Kudos bar boxes) A small 1.5 volt DC motor A propeller that ...
By: Dr. No

Continue Reading »]]> technology Wed, 18 Oct 2006 18:41:33 PDT http://www.instructables.com/answers/What-to-ask-when-buying-a-laser-cutting-machine/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif Q4YF2APFVMVC634 amirahmadi Hello, I am new to laser cutting machines, I need some guidelines, I need laser cutter to cut fabric or engrave wood and plastic, I contacted a manuacturer is China and they have a 40 Watt machine with 60cm X 40cm cutting area, for approx. $4000 (Canadian) the same type of machine here in Canada is...
By: amirahmadi

Continue Reading »]]> technology Sun, 7 Jun 2009 10:39:24 PDT http://www.instructables.com/id/Ballistic-Gel/
Ballistic Gel - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F04/WG1U/FUVSH2LH/F04WG1UFUVSH2LH.SQUARE2.jpg http://img.instructables.com/files/deriv/F04/WG1U/FUVSH2LH/F04WG1UFUVSH2LH.SQUARE.jpg http://img.instructables.com/files/deriv/F04/WG1U/FUVSH2LH/F04WG1UFUVSH2LH.SMALL.jpg ENZ9TE6FUPUPPE1 demon fang How do you accurately test the affect that ballistics have on a flesh like substance?One answer to the problem is to create ballistic gel, which mimics human flesh. Another solution is to use a dead pig as their bodies are similar to humans for testing purposes. Ballistic gel is the more practical s...
By: demon fang

Continue Reading »]]> technology Fri, 29 May 2009 07:48:11 PDT http://www.instructables.com/id/Table-for-Electronic-Dreams/
Table for Electronic Dreams - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FXO/22CL/FV4LSIG5/FXO22CLFV4LSIG5.SQUARE2.jpg http://img.instructables.com/files/deriv/FXO/22CL/FV4LSIG5/FXO22CLFV4LSIG5.SQUARE.jpg http://img.instructables.com/files/deriv/FXO/22CL/FV4LSIG5/FXO22CLFV4LSIG5.SMALL.jpg EYCP1E4FV4LSI58 andydoro Table for Electronic Dreams is a table which reveals the hidden electrical activity of nearby electronic objects. Through this interaction, people will develop a greater awareness of the invisible workings of their electronic devices and the limits of human perception. Gather parts! You wil...
By: andydoro

Continue Reading »]]> technology Thu, 28 May 2009 19:43:02 PDT http://www.instructables.com/answers/can-Sodium-polyacrylate-absorb-nitic-acid-or-hydro/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif Q7P283HFV40B5J0 I would like to know if mixing Sodium polyacrylate with nitic acid or hydrogen peroxide will form a gel-like structure of solid material for disposal.?
By:

Continue Reading »]]> technology Tue, 26 May 2009 12:25:13 PDT http://www.instructables.com/id/Small-NFT-Hydroponics-System/
Small NFT Hydroponics System - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FWE/QDEF/FUI0TC22/FWEQDEFFUI0TC22.SQUARE2.jpg http://img.instructables.com/files/deriv/FWE/QDEF/FUI0TC22/FWEQDEFFUI0TC22.SQUARE.jpg http://img.instructables.com/files/deriv/FWE/QDEF/FUI0TC22/FWEQDEFFUI0TC22.SMALL.jpg EBFOAMFFV15TBRY Weissensteinburg Hydroponics is a type of agriculture that uses no dirt, and usually results in larger, fuller plants. I recently became interested in the topic, and decided to start my own vegetable garden using the Nutrient Film Technique (NFT). It involves a channel of nutrient enriched water constantly flowing p...
By: Weissensteinburg

Continue Reading »]]> technology Sun, 24 May 2009 07:38:03 PDT http://www.instructables.com/answers/what-wattage-of-laser-necessary-to-kill-mosquitoes/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif Q15M7O2FUI0T8PV ferzenr To craft a gadget that shoots mosquitoes with laser, there is the need to know the enemy's vulnerability. The most needed is the mosquito vulnerability to laser shooting. What wattage of laser is sufficient? The configuration I think is, attracting mosquitoes with some infrared light (or, multivibra...
By: ferzenr

Continue Reading »]]> technology Thu, 21 May 2009 21:09:00 PDT http://www.instructables.com/id/Volume-of-a-Sphere-1/
Volume of a Sphere - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FJ1/X2CQ/FQR1GRHJ/FJ1X2CQFQR1GRHJ.SQUARE2.jpg http://img.instructables.com/files/deriv/FJ1/X2CQ/FQR1GRHJ/FJ1X2CQFQR1GRHJ.SQUARE.jpg http://img.instructables.com/files/deriv/FJ1/X2CQ/FQR1GRHJ/FJ1X2CQFQR1GRHJ.SMALL.jpg EC1LUD8FQR1WIVO Yashknowsbetter A sphere is nothing but a three dimensional circle. If you can imagine a smooth ball, suspended in mid-air, perfectly round... then you get a sphere. All of you have seen spheres...They're everywhere! If you've seen the solar system, you've seen spheres..If you've played ping pong, or golf or socce...
By: Yashknowsbetter

Continue Reading »]]> technology Fri, 6 Feb 2009 15:49:58 PST http://www.instructables.com/answers/I-have-some-questions-on-bridge-rectifiers-and-how/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QVHLPMXFUI0SBIO opliko If I use a bridge rectifier to convert AC 110V into "DC" 110(154V), I'm guessing the amperage rating on the rectifier is how much current will be available to use vs the voltage being output as well? The reason I put 154 volts is because peak voltage is 110ac times 1.4. I'm using this for LEDs, jus...
By: opliko

Continue Reading »]]> technology Wed, 13 May 2009 14:57:52 PDT http://www.instructables.com/answers/salvaged-parts-instructable-ideas/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QSF0QS7FUI0OR86 harlyquin I found a nonfunctional UPS at a church yard sale and was able to salvage the following items: 1 class h transformer (about 5 cubic inches if that means anything) 1network transient protector plug-in 4 4 x 3 aluminum plate heat sinks 4 6v 11a gel-cell pb acid batteries and the circuit board may hav...
By: harlyquin

Continue Reading »]]> technology Mon, 11 May 2009 10:59:21 PDT http://www.instructables.com/id/Portable-12-Volt-17-Watt-Wind-Generator-with-Autom/
Portable 12 Volt 17 Watt Wind Generator with Automatic Furling - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FN5/0P1N/FYAJC1VB/FN50P1NFYAJC1VB.SQUARE2.jpg http://img.instructables.com/files/deriv/FN5/0P1N/FYAJC1VB/FN50P1NFYAJC1VB.SQUARE.jpg http://img.instructables.com/files/deriv/FN5/0P1N/FYAJC1VB/FN50P1NFYAJC1VB.SMALL.jpg E1GB6W2FT7PKT78 shastalore I've just designed and built a practical, portable 12 Volt 17 Watt wind generator that is ideal (and appropriate) for setting up in campgrounds, parks, Earth Day exhibitions, research stations, and third world homesteads. On "light breeze" days (5mph = 2.2m/s) when most wind generators are becalmed...
By: shastalore

Continue Reading »]]> technology Wed, 6 May 2009 09:46:41 PDT http://www.instructables.com/answers/How-can-I-convert-12v-down-to-5v/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QUA4PAMFU6LWSX5 niranj_1994
By: niranj_1994

Continue Reading »]]> technology Wed, 6 May 2009 09:08:08 PDT http://www.instructables.com/answers/How-do-i-monitor-battery-voltage-and-adjust-engine/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QDX3CZ5FU6M04EK impellbm This is a question about an onboard generator for a robot. Obviously id like to achieve homeostasis at around 12.5-13v. When my car battery reaches full capacity (13.8v) the servo releases the throttle. When it falls below 12v it increases idle to full. Im new to the game go easy on me im waiting on...
By: impellbm

Continue Reading »]]> technology Tue, 5 May 2009 20:13:48 PDT http://www.instructables.com/id/How-to-Create-Laser-Art-with-A-Digital-Camera/
How to Create Laser Art with A Digital Camera - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F5T/BCWX/FU6LTPY4/F5TBCWXFU6LTPY4.SQUARE2.jpg http://img.instructables.com/files/deriv/F5T/BCWX/FU6LTPY4/F5TBCWXFU6LTPY4.SQUARE.jpg http://img.instructables.com/files/deriv/F5T/BCWX/FU6LTPY4/F5TBCWXFU6LTPY4.SMALL.jpg EYCY3I9FU6LTPWM JamecoElectronics Want to liven up your computer desktop or home page with catchy imagery? There are plenty of commercial images you can download, but a laser pointer and a digital camera will allow you to create original and spectacular desktop and home page background images that will make you the envy of the offic...
By: JamecoElectronics

Continue Reading »]]> technology Tue, 5 May 2009 09:59:55 PDT http://www.instructables.com/id/My-home-made-solar-cell-1/
My home made solar cell step by step - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FEY/KOIO/FU6LR1A6/FEYKOIOFU6LR1A6.SQUARE2.jpg http://img.instructables.com/files/deriv/FEY/KOIO/FU6LR1A6/FEYKOIOFU6LR1A6.SQUARE.jpg http://img.instructables.com/files/deriv/FEY/KOIO/FU6LR1A6/FEYKOIOFU6LR1A6.SMALL.jpg E19YTHOFU6LZRCW alessiof76 Here is a low power low efficiency photovoltaic cell that you can make you own in the kitchen with materials from the hardware store.This cell is made from cuprous oxide instead of silicon and you can build a working solar cell in 2 hoursto build it i follow this instruction: http://scitoys.com/sc...
By: alessiof76

Continue Reading »]]> technology Sun, 3 May 2009 06:16:19 PDT http://www.instructables.com/answers/Where-can-galinstan-be-found-Can-It-be-made-cheap/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QGJOTFHFTM73Q3H PKTraceur null
By: PKTraceur

Continue Reading »]]> technology Thu, 23 Apr 2009 13:39:08 PDT http://www.instructables.com/answers/physical-and-electrical-engineering-what-is-a-goo/ http://img.instructables.com/files/deriv/FHI/27BL/FTM73BGR/FHI27BLFTM73BGR.SQUARE2.jpg http://img.instructables.com/files/deriv/FHI/27BL/FTM73BGR/FHI27BLFTM73BGR.SQUARE.jpg http://img.instructables.com/files/deriv/FHI/27BL/FTM73BGR/FHI27BLFTM73BGR.SMALL.jpg Q7N85A7FTM73BGS shiboohi i am thinking about getting into amateur physical and electrical engineering. is there anything i can build, read, see or explore that would either spark an idea or get me some experience? (robotics, model-making, circuit boards) or even kits that you could suggest, involving that sort of thing. th...
By: shiboohi

Continue Reading »]]> technology Mon, 20 Apr 2009 21:49:06 PDT http://www.instructables.com/id/Popsicle-Stick-Bridge/
Popsicle Stick Bridge - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FEJ/RSKP/FT7PUCE9/FEJRSKPFT7PUCE9.SQUARE2.jpg http://img.instructables.com/files/deriv/FEJ/RSKP/FT7PUCE9/FEJRSKPFT7PUCE9.SQUARE.jpg http://img.instructables.com/files/deriv/FEJ/RSKP/FT7PUCE9/FEJRSKPFT7PUCE9.SMALL.jpg EDVCTQGFT17YI79 drinkmorecoffee The popsicle stick bridge is a classic science demonstration and competition. Every year many students world-wide build bridges made soley from popsicle sticks and glue, to see which designs can hold the most weight.We built one, using maybe 140 sticks, give or take a few. Not expecting it to hold m...
By: drinkmorecoffee

Continue Reading »]]> technology Mon, 20 Apr 2009 15:52:38 PDT http://www.instructables.com/id/Telephone-To-God/
Telephone To God - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FJB/EWPE/FTK8A4MH/FJBEWPEFTK8A4MH.SQUARE2.jpg http://img.instructables.com/files/deriv/FJB/EWPE/FTK8A4MH/FJBEWPEFTK8A4MH.SQUARE.jpg http://img.instructables.com/files/deriv/FJB/EWPE/FTK8A4MH/FJBEWPEFTK8A4MH.SMALL.jpg EN12KYDFTO5469L jiovine The Telephone To God (TTG) circuit provides several fertile areas of cutting edge research for readers to dabble in;  from influencing the probability of decaying radioactive particles (quantum mechanics), aka mind's influence on nature and machines to precognition and telepathy. The TTG circuit c...
By: jiovine

Continue Reading »]]> technology Sun, 19 Apr 2009 15:39:02 PDT http://www.instructables.com/id/Charge-Your-Cellphone-Using-Wasted-Heat/
Charge Your Cellphone Using Wasted Heat (and Build a Steampunk Wall-E) - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F15/1L2G/FT7PRNPC/F151L2GFT7PRNPC.SQUARE2.jpg http://img.instructables.com/files/deriv/F15/1L2G/FT7PRNPC/F151L2GFT7PRNPC.SQUARE.jpg http://img.instructables.com/files/deriv/F15/1L2G/FT7PRNPC/F151L2GFT7PRNPC.SMALL.jpg EJPTI9HFT7PUSVA splitreaction We updated the instructable with a new implementation you can build without spending all that money on those expensive seebeck generators. This one uses Peltiers in reverse to generate rather than cool. They aren't as efficient but they are much more affordable. Plus most of the parts required are ...
By: splitreaction

Continue Reading »]]> technology Wed, 15 Apr 2009 20:51:22 PDT http://www.instructables.com/answers/Is-algae-oil-suitable-to-be-used-as-cooking-oil-/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QY5AEO4FT7PQNR7 nickk Hi everyone, Is algae oil suitable to be used as cooking oil ? does it have any strange taste or odor ? what color is the oil ? I am not after biodiesel, i need to know if the algae oil is edible and suitable for human consumption.
By: nickk

Continue Reading »]]> technology Thu, 9 Apr 2009 01:28:39 PDT http://www.instructables.com/answers/What-should-i-check-while-buying-a-second-hand-ard/ http://img.instructables.com/files/deriv/FPE/2X4V/FT7PK77T/FPE2X4VFT7PK77T.SQUARE2.jpg http://img.instructables.com/files/deriv/FPE/2X4V/FT7PK77T/FPE2X4VFT7PK77T.SQUARE.jpg http://img.instructables.com/files/deriv/FPE/2X4V/FT7PK77T/FPE2X4VFT7PK77T.SMALL.jpg QMGM73RFT7PK77V McLightning hi everybody, i found a second hand arduino on a website.the seller is saying that it is a handmade arduino.but how?i think all arduinos are made in arduino factory.isn't it? it's not looking like other arduinos that i saw before on internet it's a "ARDUINO ATMEL ATMEGA 168 CHIP". isn't it? im wa...
By: McLightning

Continue Reading »]]> technology Thu, 9 Apr 2009 08:13:50 PDT http://www.instructables.com/answers/Why-does-natural-light-work-better-with-solar-pane/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QVP8U10FT7PK2WK phalanx447 I've found that when using solar panels to charge batteries and do other solar panel related projects, they work much better with natural sunlight over florescent lights. While I am willing to accept this fact and deal with it, I can't help but wonder why. Any ideas?
By: phalanx447

Continue Reading »]]> technology Wed, 8 Apr 2009 12:24:24 PDT http://www.instructables.com/answers/Mechanical-first-rain-drops-detector/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QJSSE6XFT3KAB4U Raymondo I am looking for a mechanical' 'way of detecting the first raindrops of a shower or worse. This detector then releases a mechanical alarm, which will alert folk who keep their washing on the line as long as possible, to bring it in.The alarm could be sounded by a gravity falling weight (rock) or re...
By: Raymondo

Continue Reading »]]> technology Mon, 6 Apr 2009 08:24:40 PDT http://www.instructables.com/answers/How-to-make-a-pill-reminder/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif Q6MSGXQFT3K73NC Pill reminder is considered a box with different chambers for storing drugs.The reminder is more like alarm clock the reminds the patient when exactly can take his/her drugs. I saw a lot of pill reminders but I"m dying to learn how to make one.
By:

Continue Reading »]]> technology Mon, 6 Apr 2009 12:46:58 PDT http://www.instructables.com/answers/Has-anyone-modified-an-lcd-display-to-use-sun-ligh/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QO96QW7FT7PQELE BobChiang I'd like to use a 4" lcd display outdoors. Would it work to remove the backlight and use a mirror to direct sunlight to the back of the lcd (in conjunction with a shade for the front)? Would a sheet of white plastic work for a diffuser?Something similar to this old pocket tv system:http://tinyurl....
By: BobChiang

Continue Reading »]]> technology Tue, 7 Apr 2009 09:22:35 PDT http://www.instructables.com/id/Quick-and-Dirty-Hand-Held-quotTesla-Coilquot/
Quick and Dirty Hand Held "Tesla Coil" - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FE4/D4IS/FT18156J/FE4D4ISFT18156J.SQUARE2.jpg http://img.instructables.com/files/deriv/FE4/D4IS/FT18156J/FE4D4ISFT18156J.SQUARE.jpg http://img.instructables.com/files/deriv/FE4/D4IS/FT18156J/FE4D4ISFT18156J.SMALL.jpg EV815BVFSZSPXAT hardwarehacker This is a very dangerous hand held high voltage generator. I built it from an auto ignition coil, power relay and a broken power drill. I call it a Tesla coil because that is what an ignition coil really is. It's a very convenient short cut to a high voltage spark generator. You could build it with ...
By: hardwarehacker

Continue Reading »]]> technology Thu, 2 Apr 2009 18:32:38 PDT http://www.instructables.com/id/Cultivating-Streptococcus-Lactis-For-Multi-Uses/
Cultivating Streptococcus Lactis For Multi-Uses. - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FE1/G807/FSZSPW4X/FE1G807FSZSPW4X.SQUARE2.jpg http://img.instructables.com/files/deriv/FE1/G807/FSZSPW4X/FE1G807FSZSPW4X.SQUARE.jpg http://img.instructables.com/files/deriv/FE1/G807/FSZSPW4X/FE1G807FSZSPW4X.SMALL.jpg E4QH35XFSZSPW5E SinAmos Lactococcus lactis is a Gram-positive bacteria used extensively in the production of buttermilk and cheese.[1] L. lactis are cocci that group in pairs and short chains, and depending on growth conditions appears ovoid with typically 0.5 - 1.5 ým in length. L. lactis do not produce spores (non-sporul...
By: SinAmos

Continue Reading »]]> technology Thu, 2 Apr 2009 10:21:07 PDT http://www.instructables.com/id/How-to-Prank-the-Instructables-Community/
How to Prank the Instructables Community - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FTZ/34K8/FSZSGCGP/FTZ34K8FSZSGCGP.SQUARE2.jpg http://img.instructables.com/files/deriv/FTZ/34K8/FSZSGCGP/FTZ34K8FSZSGCGP.SQUARE.jpg http://img.instructables.com/files/deriv/FTZ/34K8/FSZSGCGP/FTZ34K8FSZSGCGP.SMALL.jpg ERZRHOLFSZSPXIM mrcrumley We all know (or should know) about the Instructables April Fools Contest. Instead of the typical joke idea, I decided to create an entry about my almost unbelievable ability to create the hardest stone known to man in How to Make Synthetic Diamonds. Hopefully folks will appreciate the delicious iron...
By: mrcrumley

Continue Reading »]]> technology Thu, 2 Apr 2009 10:21:06 PDT http://www.instructables.com/answers/I-have-an-above-ground-pool-I-want-to-buld-a-sal/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QGX8EJCFT17YH9J I want to build a salt water chlorine generator for a 16 x 24 above ground pool. I am reasonably mechanical inclined and would appreciate any input from someone who has designed and successfully used such a generator. I currently have a sand filter system cleaning my pool and use large amounts of ...
By:

Continue Reading »]]> technology Thu, 2 Apr 2009 04:49:28 PDT http://www.instructables.com/answers/What-do-you-think-about-this-dish-as-a-WiFi-signal/ http://img.instructables.com/files/deriv/FTO/RXDY/FSSIHVSN/FTORXDYFSSIHVSN.SQUARE2.jpg http://img.instructables.com/files/deriv/FTO/RXDY/FSSIHVSN/FTORXDYFSSIHVSN.SQUARE.jpg http://img.instructables.com/files/deriv/FTO/RXDY/FSSIHVSN/FTORXDYFSSIHVSN.SMALL.jpg Q2U7HRHFSSIHVSO Kandid Hello everybody, I am in the process of setting up wireless internet at home, but am still a complete novice in this field. I have just bought a ZyXEL G-202 USB wireless adapter and I am making an antenna of sorts following some instructables as we speak. On my laptop I usually get 1-2 stripes at ...
By: Kandid

Continue Reading »]]> technology Tue, 31 Mar 2009 11:47:40 PDT http://www.instructables.com/id/How-to-Make-a-Synthetic-Diamond/
How to Make a Synthetic Diamond - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F3E/96C9/FSUUXMYD/F3E96C9FSUUXMYD.SQUARE2.jpg http://img.instructables.com/files/deriv/F3E/96C9/FSUUXMYD/F3E96C9FSUUXMYD.SQUARE.jpg http://img.instructables.com/files/deriv/F3E/96C9/FSUUXMYD/F3E96C9FSUUXMYD.SMALL.jpg EPEMRJXFSUUXMU5 mrcrumley My 10-year Wedding Anniversary is coming up so I thought I'd make my wife something special. A few months back I'd seen a show on TV where they demonstrated how companies were now making "cultured" diamonds in the lab. There are a few different methods, but the simplest is something called "chemical...
By: mrcrumley

Continue Reading »]]> technology Tue, 31 Mar 2009 21:29:05 PDT http://www.instructables.com/id/Indoor-Paper-Airplane-Walkalong-Glider/
Indoor Paper Airplane Walkalong Glider - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F0T/FRU1/FSSIKTJ4/F0TFRU1FSSIKTJ4.SQUARE2.jpg http://img.instructables.com/files/deriv/F0T/FRU1/FSSIKTJ4/F0TFRU1FSSIKTJ4.SQUARE.jpg http://img.instructables.com/files/deriv/F0T/FRU1/FSSIKTJ4/F0TFRU1FSSIKTJ4.SMALL.jpg ENWQV0MFSSIKTIG walkalongaviation What's a walkalong glider? Here's a video of this indoor paper airplane walkalong glider design flown a distance of approximately 400m: Building and flying your own airplane has always been high on the list of dreams of adventurous souls. Learning to build and fly the indoor paper airplane walkalong...
By: walkalongaviation

Continue Reading »]]> technology Tue, 31 Mar 2009 11:45:25 PDT http://www.instructables.com/id/How-to-Make-Your-Own-Pill-Towels-With-Soap/
How to Make Your Own Pill Towels, With Soap! - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FR1/IEUC/FSSIHM7K/FR1IEUCFSSIHM7K.SQUARE2.jpg http://img.instructables.com/files/deriv/FR1/IEUC/FSSIHM7K/FR1IEUCFSSIHM7K.SQUARE.jpg http://img.instructables.com/files/deriv/FR1/IEUC/FSSIHM7K/FR1IEUCFSSIHM7K.SMALL.jpg EYH1I8WFSSIHM7O jaxthecob You might have seen these handy Pill Towels http://www.thinkgeek.com/geektoys/japanfan/b235/ at ThinkGeek.When i saw these, i though they might be useful, but the 10 dollar price tag turned me off.Here's how to make your own from thing lying around the house.You can even throw in something extra! ...
By: jaxthecob

Continue Reading »]]> technology Sun, 29 Mar 2009 14:19:32 PDT http://www.instructables.com/answers/Instructable-request-Animated-Hologram-children/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif Q6Q7SI0FSLF7MXZ MicroKID Remember the plastic school rulers with the moving pictures on it - where the picture seemed to move as we moved the ruler - plastic refraction ones I think. Can someone please tell me how to make them at home. These rulers used to be quite popular a while back - now I cannot find them - so why not ...
By: MicroKID

Continue Reading »]]> technology Sun, 22 Mar 2009 16:07:12 PDT http://www.instructables.com/id/Flashlight-Without-Batteries-from-the-book-quot/
Flashlight Without Batteries--from the book, "Haywired" - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FUH/4KRQ/FSK1D8PL/FUH4KRQFSK1D8PL.SQUARE2.jpg http://img.instructables.com/files/deriv/FUH/4KRQ/FSK1D8PL/FUH4KRQFSK1D8PL.SQUARE.jpg http://img.instructables.com/files/deriv/FUH/4KRQ/FSK1D8PL/FUH4KRQFSK1D8PL.SMALL.jpg EIYC6AWFSK1D8PW mrigsby In this project, you will make a flashlight that works without batteries. Even more amazing, you can recharge it in three minutes and it will run for more than 24 hours. Because the ultra capacitors can be recharged thousands of times, you may save the environment from ever receiving an old flashli...
By: mrigsby

Continue Reading »]]> technology Sun, 22 Mar 2009 12:18:59 PDT http://www.instructables.com/answers/could-you-make-a-cantena-for-a-built-in-wifi-adapt/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QJQ3VBYFSH7D9V4 ultrastatic
By: ultrastatic

Continue Reading »]]> technology Thu, 19 Mar 2009 15:02:47 PDT http://www.instructables.com/answers/Is-it-possibe-for-a-device-to-be-100-effecient/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QB7E37KFSH7DVBB west49rules Is it possibe for a device to be 100% effecient???
By: west49rules

Continue Reading »]]> technology Thu, 19 Mar 2009 21:17:04 PDT http://www.instructables.com/answers/will-a-beach-ball-leak-when-filled-with-helium/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QPHYDV0FSH7EFWR cheeseboy hi, i am making a weather balloon and as a cheaper alternative to proper weather-balloon balloons I would like to use a beach ball. my only questions are whether it will leak, and if there is anything else I should know about filling things with helium?
By: cheeseboy

Continue Reading »]]> technology Thu, 19 Mar 2009 22:36:09 PDT http://www.instructables.com/answers/Perpetual-energy-machine-idea-Would-it-work/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif Q0KVEADFSIJKFRZ The Jamalam Hello, i had an idea today. A light powered by a solar panel that powers itself! You would need a small amount of energy to initiate the circuit's current, but i can only see one way why this could not work: Lightbulbs lose some energy as heat and a tiny percentage as sound. How could you counter th...
By: The Jamalam

Continue Reading »]]> technology Fri, 20 Mar 2009 11:28:29 PDT http://www.instructables.com/id/How-To-Create-a-Rechargable-LED-Flashlight/
How To Create a Rechargable LED Flashlight - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FC0/Q5SH/FSFOJLNX/FC0Q5SHFSFOJLNX.SQUARE2.jpg http://img.instructables.com/files/deriv/FC0/Q5SH/FSFOJLNX/FC0Q5SHFSFOJLNX.SQUARE.jpg http://img.instructables.com/files/deriv/FC0/Q5SH/FSFOJLNX/FC0Q5SHFSFOJLNX.SMALL.jpg EYYCKVTFSFRQSOI physicker Using electromagnets, a small-scale LED flashlight similar to that featured in "Shake It Like a Tic-Tac!" can be produced.With the setup for the Tic-Tac flashlight, the voltage produced by the magnet alone may not be enough to power up the LED. It is possible that the only reason the LED lit up was ...
By: physicker

Continue Reading »]]> technology Wed, 18 Mar 2009 13:42:45 PDT http://www.instructables.com/answers/I-put-a-water-bottle-in-the-freezer-but-it-didnt-/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QBVIO8VFSE8M2E6 GorillazMiko I took it out and unscrewed the cap, and then bam the whole thing inside froze and it started from the top straight down like a loading bar. Anybody know what just happened?
By: GorillazMiko

Continue Reading »]]> technology Tue, 17 Mar 2009 20:47:01 PDT http://www.instructables.com/answers/Solar-help-please/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QH1D8RPFS8O1664 I want to charge rechargable batteries with one solar panel and use the batteries to run fans in my home to save on summer cooling costs. The central air can handle night cooling. What will I need and how do I set it up ?
By:

Continue Reading »]]> technology Fri, 13 Mar 2009 07:20:02 PDT http://www.instructables.com/id/HomemadePlastic/
Plastic Smithing: How To Make your own HDPE Plastic Anything (DIY plastic lumber) - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FK0/IOR8/FM7WGPBJ/FK0IOR8FM7WGPBJ.SQUARE2.jpg http://img.instructables.com/files/deriv/FK0/IOR8/FM7WGPBJ/FK0IOR8FM7WGPBJ.SQUARE.jpg http://img.instructables.com/files/deriv/FK0/IOR8/FM7WGPBJ/FK0IOR8FM7WGPBJ.SMALL.jpg E0NGH8GFM2KB7TO stasterisk How to make really good hard plastic while reusing and recycling plastic bags at home! Via this method, you can make ANYTHING you want to, out of hard, lightweight, real plastic that's astoundingly durable. It comes out very similar in texture to recycled plastic lumber. best of all, this method in...
By: stasterisk

Continue Reading »]]> technology Wed, 15 Oct 2008 16:00:39 PDT http://www.instructables.com/id/How-To-Make-A-Tesla-Turbine-Greenest-Turbine/
How To Make A Tesla Turbine (Greenest Turbine) - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F06/OQC1/FRXW6YGT/F06OQC1FRXW6YGT.SQUARE2.jpg http://img.instructables.com/files/deriv/F06/OQC1/FRXW6YGT/F06OQC1FRXW6YGT.SQUARE.jpg http://img.instructables.com/files/deriv/F06/OQC1/FRXW6YGT/F06OQC1FRXW6YGT.SMALL.jpg EMAJRSSFROA0UQ9 CrazyMachinist94 If you like this instructable please vote for it in the Epilog Challenge coming up. I have spent alot of time and effort trying to make this easy to understand and easy for anyone out there to do. I hope you enjoy and please rate and vote. This Instructable will show you how to c...
By: CrazyMachinist94

Continue Reading »]]> technology Tue, 10 Mar 2009 17:56:00 PDT http://www.instructables.com/answers/What-should-I-do-with-this-old-fridge/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QAY4NXNFRXWH3MB iPodGuy I was thinking about using the coil on the back for a solar heater. Any other ideas on what parts I could strip and make something out of?
By: iPodGuy

Continue Reading »]]> technology Tue, 10 Mar 2009 11:25:50 PDT http://www.instructables.com/answers/Does-anyone-know-anything-about-this-typewriter-in/ http://img.instructables.com/files/deriv/FL3/584A/FRXUT0NS/FL3584AFRXUT0NS.SQUARE2.jpg http://img.instructables.com/files/deriv/FL3/584A/FRXUT0NS/FL3584AFRXUT0NS.SQUARE.jpg http://img.instructables.com/files/deriv/FL3/584A/FRXUT0NS/FL3584AFRXUT0NS.SMALL.jpg QBWOHVKFRXWH3MA pharoah The typewriter is an AEG Olympia ES-95i. It's a big beige electronic machine from maybe the late 70s or early 80s.On the back there is a 20 pin rectangular male connector with 2 rows of 10 pins. If I connect random pins with something metal, it types various characters. I'm wondering if anybody know...
By: pharoah

Continue Reading »]]> technology Tue, 10 Mar 2009 11:25:53 PDT http://www.instructables.com/id/Pi-Guide/ http://img.instructables.com/files/deriv/FKV/QZM2/FRXW6519/FKVQZM2FRXW6519.SQUARE2.jpg http://img.instructables.com/files/deriv/FKV/QZM2/FRXW6519/FKVQZM2FRXW6519.SQUARE.jpg http://img.instructables.com/files/deriv/FKV/QZM2/FRXW6519/FKVQZM2FRXW6519.SMALL.jpg OJEQ426FRXWGHSC Instructables Guides Pi is math-speak for a circle's circumference divided by its diameter. This ratio roughly calculates to around 3.1415926535897932384626433832795028841971693993751058209749445923078. This, however, is a bit of an understatement in that pi has actually been calculated thus far with no discernible repe...
By: Instructables Guides

Continue Reading »]]> technology Fri, 6 Mar 2009 15:12:39 PST http://www.instructables.com/id/Paper_Airplane_Walkalong_Glider/
Paper Airplane Walkalong Glider - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FD3/HU6I/FRXUSN6R/FD3HU6IFRXUSN6R.SQUARE2.jpg http://img.instructables.com/files/deriv/FD3/HU6I/FRXUSN6R/FD3HU6IFRXUSN6R.SQUARE.jpg http://img.instructables.com/files/deriv/FD3/HU6I/FRXUSN6R/FD3HU6IFRXUSN6R.SMALL.jpg EDQJDTGFRXUSN6G walkalongaviation What's a walkalong glider? Here's a video of a completed paper airplane walkalong glider on a 42 second "cross country" soaring flight: This paper airplane design was fabricated from 100% reused materials, from the 8 1/2 X 11 sheet of paper to the 96cm X 75cm corrugated cardboard salvaged from ...
By: walkalongaviation

Continue Reading »]]> technology Mon, 9 Mar 2009 15:22:46 PDT http://www.instructables.com/id/Do-nothing-Machine/
Do-nothing Machine - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FLB/RZCY/FRTXG8PS/FLBRZCYFRTXG8PS.SQUARE2.jpg http://img.instructables.com/files/deriv/FLB/RZCY/FRTXG8PS/FLBRZCYFRTXG8PS.SQUARE.jpg http://img.instructables.com/files/deriv/FLB/RZCY/FRTXG8PS/FLBRZCYFRTXG8PS.SMALL.jpg EKY3BY1FRU1U4M8 LeumasYrrep Do you like to do nothing?Introducing the Do-nothing Machine. As the name suggest it does absolutely positively nothing useful. Sure it may entertain some people for a few minutes, last about an hour on me, but it still does nothing. This is a fairly easy machine to build. Takes a few hours to cut o...
By: LeumasYrrep

Continue Reading »]]> technology Fri, 6 Mar 2009 19:10:09 PST http://www.instructables.com/id/How-to-dress-a-shop-wound/
How to dress a shop wound - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F95/4VJE/FRU1U6NQ/F954VJEFRU1U6NQ.SQUARE2.jpg http://img.instructables.com/files/deriv/F95/4VJE/FRU1U6NQ/F954VJEFRU1U6NQ.SQUARE.jpg http://img.instructables.com/files/deriv/F95/4VJE/FRU1U6NQ/F954VJEFRU1U6NQ.SMALL.jpg EW1QI2EFRU1U6L2 JHGLessons Accidentally slice your hand open while working on an instructables project? No worries, here's an other instructable to patch you back up.This is an account of my road to recovery after cutting myself while working on my victorian lamp instructable. Photographs by Kiki Brown Start by working on ...
By: JHGLessons

Continue Reading »]]> technology Wed, 4 Mar 2009 21:23:53 PST http://www.instructables.com/answers/Is-showing-the-user-SQL-error-messages-dangerous/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QQ4M4O1FRTTV0PC NobodyInParticular If during error conditions your website shows a page full of SQL messages, does this put you at greater risk of an injection attack?
By: NobodyInParticular

Continue Reading »]]> technology Mon, 2 Mar 2009 20:03:34 PST http://www.instructables.com/answers/How-can-I-heat-my-swimming-pool-early-Although-I-/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif Q4RBKR6FRU1TZL5 diydiva It takes 2 months to get to a good swimming temperature.The pool is 16 x 30', depth varies from 3' to 9'.? I have a solar blanket which will keep the heat in. But it will also add trash(grass and gravel) if I put it on and take it off everyday.
By: diydiva

Continue Reading »]]> technology Tue, 3 Mar 2009 06:36:41 PST http://www.instructables.com/answers/How-can-I-get-a-filter-whose-color-depends-on-the-/ http://img.instructables.com/files/deriv/F92/7V3E/FR0ZST09/F927V3EFR0ZST09.SQUARE2.jpg http://img.instructables.com/files/deriv/F92/7V3E/FR0ZST09/F927V3EFR0ZST09.SQUARE.jpg http://img.instructables.com/files/deriv/F92/7V3E/FR0ZST09/F927V3EFR0ZST09.SMALL.jpg QC3700EFROAAMVG NobodyInParticular Suppose you have a filter through which light linearly polarized at a 60` angle looks red, 120` looks green, and 180` looks blue. A mixture of 60` and 180` looks purple (red+blue). Unpolarized looks white (red+green+blue).Does someone make such a filter? Or one that only polarizes light in a narrow ...
By: NobodyInParticular

Continue Reading »]]> technology Sat, 28 Feb 2009 16:21:35 PST http://www.instructables.com/id/Simple-Algae-Home-CO2-Scrubber-Part-II-Culturing/
Simple Algae Home CO2 Scrubber - Part II Algae Cultures and Breeding - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FNK/XD9L/FRL5KVKM/FNKXD9LFRL5KVKM.SQUARE2.jpg http://img.instructables.com/files/deriv/FNK/XD9L/FRL5KVKM/FNKXD9LFRL5KVKM.SQUARE.jpg http://img.instructables.com/files/deriv/FNK/XD9L/FRL5KVKM/FNKXD9LFRL5KVKM.SMALL.jpg E3WBAFCFRJKN56M egbertfitzwilly In Part I we built a simple home CO2 scrubber using algae. I'm writing this instructable to demonstrate how to culture and cultivate algae using more or less laboratory style procedures but substituting some readily available items for more traditional laboratory glassware.I encourage you to experim...
By: egbertfitzwilly

Continue Reading »]]> technology Fri, 27 Feb 2009 22:43:58 PST http://www.instructables.com/answers/How-can-I-obtain-an-apparent-specific-gravity-of-/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QPPE33PFRNMUOK8 jodiebby I need to verify an Apparent Specific gravity of a plastic bag- like the type used for a food vacuum sealer. I'm not sure how to go about it. I think I have all the needed items; scale, water bath, even a vacuum sealer if needed. I just can't find the method, or the formula used to calculate. I ev...
By: jodiebby

Continue Reading »]]> technology Thu, 26 Feb 2009 09:05:15 PST http://www.instructables.com/answers/How-to-Convert-Speed-to-Power-in-a-DC-Motor/ http://img.instructables.com/files/deriv/FDN/VJHW/FRL6BG4R/FDNVJHWFRL6BG4R.SQUARE2.jpg http://img.instructables.com/files/deriv/FDN/VJHW/FRL6BG4R/FDNVJHWFRL6BG4R.SQUARE.jpg http://img.instructables.com/files/deriv/FDN/VJHW/FRL6BG4R/FDNVJHWFRL6BG4R.SMALL.jpg QESV01RFRLJR6PY comodore I need power from my small DC motor, not speed. I have a few small DC motors that run like wild, they have speed, but what I need from them is to run very slowly, about 1 revolution per 4-5 seconds, but I need it to have power, power to lift something...that something isn't to heavy... My point is ...
By: comodore

Continue Reading »]]> technology Wed, 25 Feb 2009 02:53:40 PST http://www.instructables.com/answers/Im-new-to-this-website-where-do-I-start/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif Q2M6LGHFRIQ7FS7 areilly3 I'm just getting into technology and I'm interested in how things work and more importantly, how to build them. I'm really excited to get started; but I don't want to bite off more than I can chew- suggestions? Where do I start?
By: areilly3

Continue Reading »]]> technology Mon, 23 Feb 2009 09:00:11 PST http://www.instructables.com/id/Optical-Illusion-Mysterious-Black-Dots/
Optical Illusion - Mysterious Black Dots - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F1H/3JF6/FRJGP9ZH/F1H3JF6FRJGP9ZH.SQUARE2.jpg http://img.instructables.com/files/deriv/F1H/3JF6/FRJGP9ZH/F1H3JF6FRJGP9ZH.SQUARE.jpg http://img.instructables.com/files/deriv/F1H/3JF6/FRJGP9ZH/F1H3JF6FRJGP9ZH.SMALL.gif E3OJ6K1FRJGJEID DoubleVision This optical illusion is a variation on the previous optical illusion with the gray ghosts appearing in the intersections of the black grid. We still have a black grid here, but now the lines are gray and there are white circles in the intersections. Have a look and try to count all of the black dot...
By: DoubleVision

Continue Reading »]]> technology Mon, 23 Feb 2009 10:44:11 PST http://www.instructables.com/id/How-to-Make-Anything-Using-Acrylic-and-Machine-Sc/
How to Make Anything (Using Acrylic and Machine Screws) - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F5Q/NZO9/FRIQ7FDO/F5QNZO9FRIQ7FDO.SQUARE2.jpg http://img.instructables.com/files/deriv/F5Q/NZO9/FRIQ7FDO/F5QNZO9FRIQ7FDO.SQUARE.jpg http://img.instructables.com/files/deriv/F5Q/NZO9/FRIQ7FDO/F5QNZO9FRIQ7FDO.SMALL.jpg E0V1503FRIQ7FDF oomlout Well maybe not anything, but what follows is an Instructable about how we at oomlout.com build everything we produce.It is a technique we call Interlocking T-Bolt Construction. It consists of a T-cutout in one piece of acrylic (or any 3 mm stock) and a receptacle in another piece. These pieces can t...
By: oomlout

Continue Reading »]]> technology Mon, 23 Feb 2009 09:28:00 PST http://www.instructables.com/answers/Regulated-pwr-supply-using-one-pwr-source-to-suppl/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif Q7ZN0RFFRD80J5L pianoman2011 I am working on a multicolored laser unit combining 3 different colored lasers (violet, red, and green) and i would like it so that they can all be supplied with power from one source (such as a AC-DC wall transformer). But each one runs at a different amount of mA's and Volts. I cannot figure out h...
By: pianoman2011

Continue Reading »]]> technology Sun, 22 Feb 2009 10:33:05 PST http://www.instructables.com/answers/how-do-I-make-super-huge-sparks/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QHVDQD9FRD86EH2 miiwii3 I want to make sparks that can go up to 1-2' long to impressive my friend. My friends don't think I am good with electricity and I would like to Reall impressive them
By: miiwii3

Continue Reading »]]> technology Sat, 21 Feb 2009 19:53:25 PST http://www.instructables.com/id/Worlds-greenest-water-pump/
~ World's Greenest WATER PUMP ~ - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FMG/7V3S/FT182T11/FMG7V3SFT182T11.SQUARE2.jpg http://img.instructables.com/files/deriv/FMG/7V3S/FT182T11/FMG7V3SFT182T11.SQUARE.jpg http://img.instructables.com/files/deriv/FMG/7V3S/FT182T11/FMG7V3SFT182T11.SMALL.gif ETMEUTAFRD868XI eltigre ~Hydraulic Ram Pumps are very old technology that pump water using gravity and 2 valves to generate a repeating water hammer effect. The "hammer" pounds a little of the drive water into a pressure tank then up the delivery hose for your use. Why is it green? Because it's simple, reliable, pumps wat...
By: eltigre

Continue Reading »]]> technology Fri, 20 Feb 2009 14:15:13 PST http://www.instructables.com/id/Optical-Illusion-Black-Squares-and-Gray-Dots/
Optical Illusion - Black Squares and Gray Dots - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F81/M1FI/FRD807F2/F81M1FIFRD807F2.SQUARE2.jpg http://img.instructables.com/files/deriv/F81/M1FI/FRD807F2/F81M1FIFRD807F2.SQUARE.jpg http://img.instructables.com/files/deriv/F81/M1FI/FRD807F2/F81M1FIFRD807F2.SMALL.gif EUYXVM5FRD807DR DoubleVision In this optical illusion you will see gray dots at the intersections in the grid below. This is known as the Hermann-grid illusion. Those gray dots aren't really there. You can make them disappear by looking directly at the intersection.In this Instructable we will go over a quick method for recreat...
By: DoubleVision

Continue Reading »]]> technology Thu, 19 Feb 2009 11:24:42 PST http://www.instructables.com/id/Optical-Illusion-Falling-buildings/
Optical Illusion - Falling Buildings - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F9G/YD04/FRAAUTAJ/F9GYD04FRAAUTAJ.SQUARE2.jpg http://img.instructables.com/files/deriv/F9G/YD04/FRAAUTAJ/F9GYD04FRAAUTAJ.SQUARE.jpg http://img.instructables.com/files/deriv/F9G/YD04/FRAAUTAJ/F9GYD04FRAAUTAJ.SMALL.jpg EFW132YFRAAUSOI DoubleVision In this optical illusion we see two buildings and it looks like the building on the right is in danger of falling over and crushing everyone underneath. It's an architectural disaster!But like the title says, this is an illusion. In fact, both halves of the image are identical. In this Instructable ...
By: DoubleVision

Continue Reading »]]> technology Tue, 17 Feb 2009 14:27:55 PST http://www.instructables.com/id/Simple-Algae-Home-CO2-Scrubber-Part-1/
Simple Algae Home CO2 Scrubber - Part 1 - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F9O/7K22/FRD89OSZ/F9O7K22FRD89OSZ.SQUARE2.jpg http://img.instructables.com/files/deriv/F9O/7K22/FRD89OSZ/F9O7K22FRD89OSZ.SQUARE.jpg http://img.instructables.com/files/deriv/F9O/7K22/FRD89OSZ/F9O7K22FRD89OSZ.SMALL.jpg EYT7O9WFR123H72 egbertfitzwilly I created this instructable to show how to build a simple algae based CO2 scrubber for home or apartment use. The basic design shown here will scrub its own consumption and approximately 24 pounds of carbon dioxide from the atmosphere every year. This is approximately the CO2 produced in the product...
By: egbertfitzwilly

Continue Reading »]]> technology Tue, 17 Feb 2009 11:20:57 PST http://www.instructables.com/id/Optical-Illusion-Two-Lines/
Optical Illusion - Two Lines - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FZE/QJ9X/FR123NAE/FZEQJ9XFR123NAE.SQUARE2.jpg http://img.instructables.com/files/deriv/FZE/QJ9X/FR123NAE/FZEQJ9XFR123NAE.SQUARE.jpg http://img.instructables.com/files/deriv/FZE/QJ9X/FR123NAE/FZEQJ9XFR123NAE.SMALL.gif EFWW800FR123N8Q DoubleVision This Instructable will show you how to make a simple optical illusion. This illusion is called the Poggendorff Illusion and has been around for a while.So what's happening in the image below? What is that red line doing there? Go to the next step to see what's going on inside the black rectangle. ...
By: DoubleVision

Continue Reading »]]> technology Mon, 16 Feb 2009 17:00:39 PST http://www.instructables.com/answers/What-is-the-best-way-to-cut-Plexiglas-or-Lexan/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QM2IVXIFR7EUYVG mweston I am building a solar panel, and I need to cut a sheet of Lexan. I have scoured the internet and have come up with a bunch of ways ranging from scoring it to using a jigsaw. None of these seem to yield a good result and a clean edge (even after sanding). I was wondering what your experience was and ...
By: mweston

Continue Reading »]]> technology Mon, 16 Feb 2009 07:53:55 PST http://www.instructables.com/answers/Is-there-a-specific-ratio-between-lift-and-wing-si/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QRFNKIGFQWVVJ77 afw11 I am working on an rc plane and wondered if there is a ratio between propeller size to wing size, wing size to lift, or weight to wing size. Thanks!
By: afw11

Continue Reading »]]> technology Sun, 15 Feb 2009 10:38:09 PST http://www.instructables.com/id/Water_Rocket_Parachute_Deployment_Mechanism/
Water Rocket Parachute Deployment Mechanism - More DIY How To Projects]]> http://img.instructables.com/files/deriv/F6H/S03G/FR0ZHQ72/F6HS03GFR0ZHQ72.SQUARE2.jpg http://img.instructables.com/files/deriv/F6H/S03G/FR0ZHQ72/F6HS03GFR0ZHQ72.SQUARE.jpg http://img.instructables.com/files/deriv/F6H/S03G/FR0ZHQ72/F6HS03GFR0ZHQ72.SMALL.jpg ENKLMQ5FQWVVI3L air.command There are different ways to eject parachutes from water rockets. The technique we like to use is called Side Deployment (aka Horizontal Deployment) where the parachute is deployed in a perpendicular direction to the rocket body axis. The other common technique is to separate the nosecone and have th...
By: air.command

Continue Reading »]]> technology Sun, 15 Feb 2009 01:31:17 PST http://www.instructables.com/answers/How-do-I-increase-the-glow-time-of-luminol/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QRTHBHVFR0ZSYOA randofo How do I increase the glow time of luminol? And what is the safest mixture of chemicals that I can use for chemiluminescence? I'd like to avoid using highly hazardous chemicals like potassium hydroxide if possible. Ideally my mixture would glow for a few minutes once activated.
By: randofo

Continue Reading »]]> technology Thu, 12 Feb 2009 15:48:55 PST http://www.instructables.com/answers/What-should-I-expect-to-see-from-my-Leydens-jar/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QOZ8ISQFR122Y5A jodiebby My son has built 3 different Leyden's jars for a science fair. None seem to spark. The foil is very smooth( it looks like it was painted on) There are no holes. I've tried different chains. I've tried glass jars, as well as plastic. We are trying to charge to jar by rubbing a balloon on our heads an...
By: jodiebby

Continue Reading »]]> technology Thu, 12 Feb 2009 06:20:04 PST http://www.instructables.com/id/The-Double-Helix-Glass-Bead-DNA-model-V20/
The Double Helix -Glass Bead DNA model V2.0 - More DIY How To Projects]]> http://img.instructables.com/files/deriv/FT9/9668/FR0ZH8NK/FT99668FR0ZH8NK.SQUARE2.jpg http://img.instructables.com/files/deriv/FT9/9668/FR0ZH8NK/FT99668FR0ZH8NK.SQUARE.jpg http://img.instructables.com/files/deriv/FT9/9668/FR0ZH8NK/FT99668FR0ZH8NK.SMALL.jpg EH5C3G8FR0ZSPQW ChrysN Here is my second glass bead DNA double helix model. In this model I used wire instead of thread and I also added more space between the base pairs. Here is a link to my first model. Materials: -Five different colours of seed beads (I used glass beads).one colour makes up the sugar-phosphate ba...
By: ChrysN

Continue Reading »]]> technology Wed, 11 Feb 2009 06:44:40 PST http://www.instructables.com/answers/How-much-surface-area-of-mirror-would-you-need-to-/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QBT865ZFR122SGI robbtoberfest I'm working on a coffee machine powered by the sun and need a little help with the mirror sizing. How much surface area of mirror would you need to boil 16 oz of water in less than 5 minutes using concentrating solar? Can I do this practically with a dish less than 1 meter square? If I get this to w...
By: robbtoberfest

Continue Reading »]]> technology Tue, 10 Feb 2009 21:05:21 PST http://www.instructables.com/answers/is-it-possible-to-manipulate-a-magnetic-field-so-m/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif QSK3RNVFQR1X5BW death defyer
By: death defyer

Continue Reading »]]> technology Mon, 9 Feb 2009 14:58:37 PST http://www.instructables.com/answers/how-much-psi-does-a-coke-bottle2l-hold/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif Q41TWLDFQR1X51E albf1 i need to know for a a canon
By: albf1

Continue Reading »]]> technology Mon, 9 Feb 2009 13:32:03 PST http://www.instructables.com/answers/What-is-a-good-site-to-buy-leds-from/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif Q1MW2OTFQR1H8FD rocketman221 I am looking for cool white leds in a 5 - 10mm package that run between 250 - 350 mW.
By: rocketman221

Continue Reading »]]> technology Sat, 7 Feb 2009 12:56:46 PST http://www.instructables.com/answers/What-infomation-are-needed-to-calculate-fps-for-an/ /static/defaultIMG/default.SQUARE2.gif /static/defaultIMG/default.SQUARE.gif /static/defaultIMG/default.SMALL.gif Q6ZTAXOFQR1WSLT I know that fps is speed unit, and I'm trying to calculate the initial speed(or the power) for my air canon. Information I have: 1: value of the air chamber 2: psi 3: diameter of the barrel 4: length of the barrel 5: diameter of the air release valve will those information be enough? How to calcula...
By:

Continue Reading »]]> technology Fri, 6 Feb 2009 14:51:00 PST