Instructables: exploring - technology - science - popular http://www.instructables.com Sat, 30 Apr 2016 00:11:13 PDT BLOX v1.01 How to Make Phosphorescent "Glow in the Dark" Powder http://www.instructables.com/id/How-to-Make-Phosphorescent-Glow-in-the-Dark-Powd/
How to Make Phosphorescent "Glow in the Dark" Powder - More DIY How To Projects]]> http://cdn.instructables.com/FZE/DYHV/G33OQ8ON/FZEDYHVG33OQ8ON.SQUARE2.jpg http://cdn.instructables.com/FZE/DYHV/G33OQ8ON/FZEDYHVG33OQ8ON.SQUARE.jpg http://cdn.instructables.com/FZE/DYHV/G33OQ8ON/FZEDYHVG33OQ8ON.SMALL.jpg NurdRage How to make phosphorescent glow in the dark powder. Also known as luminescent, photoluminescent or simply glow powder. Warning: This experiment uses mildly toxic chemicals, wear gloves when handling them. In addition, the combustion reaction must be performed outside or in a fume-hood due to the res...
By: NurdRage

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Sun, 13 Dec 2009 16:51:36 PST
Square 2+ Digit Numbers Mentally http://www.instructables.com/id/Square-2-Digit-Numbers-Mentally/
Square 2+ Digit Numbers Mentally - More DIY How To Projects]]> http://cdn.instructables.com/FE6/8HK5/FJD5CIGC/FE68HK5FJD5CIGC.SQUARE2.jpg http://cdn.instructables.com/FE6/8HK5/FJD5CIGC/FE68HK5FJD5CIGC.SQUARE.jpg http://cdn.instructables.com/FE6/8HK5/FJD5CIGC/FE68HK5FJD5CIGC.SMALL.jpg purduecer For my first Instructable, I posted my first Instructable about a fun trick I had learned back in junior high for taking the cube roots of large numbers (6 or more digits) mentally. It was a well liked and well received 'ible, getting featured and making the popularity section in spite of being of ...
By: purduecer

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Mon, 4 Aug 2008 00:06:04 PDT
My Tesla's radiant energy collector (open project) http://www.instructables.com/id/My-Teslas-radiant-energy-collector-open-project/
My Tesla's radiant energy collector (open project) - More DIY How To Projects]]> http://cdn.instructables.com/FG7/ZYI5/FVDC32US/FG7ZYI5FVDC32US.SQUARE2.jpg http://cdn.instructables.com/FG7/ZYI5/FVDC32US/FG7ZYI5FVDC32US.SQUARE.jpg http://cdn.instructables.com/FG7/ZYI5/FVDC32US/FG7ZYI5FVDC32US.SMALL.jpg alessiof76 I did this experiment in February 2009. This device was invented to detect / collect "radiant energy" and convert it into electricity it was patented by Tesla in 1905 original patent: http://keelynet.com/tesla/00685958.pdfMy device not collect "radiant energy", it collect static electricity I ju...
By: alessiof76

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Tue, 2 Jun 2009 02:02:06 PDT
How to Make some Charcoal http://www.instructables.com/id/How-to-Make-some-Charcoal/
How to Make some Charcoal - More DIY How To Projects]]> http://cdn.instructables.com/FQL/U9XA/XM9EZ7C8Q49/FQLU9XAXM9EZ7C8Q49.SQUARE2.jpg http://cdn.instructables.com/FQL/U9XA/XM9EZ7C8Q49/FQLU9XAXM9EZ7C8Q49.SQUARE.jpg http://cdn.instructables.com/FQL/U9XA/XM9EZ7C8Q49/FQLU9XAXM9EZ7C8Q49.SMALL.jpg 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

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Tue, 13 Mar 2007 19:18:37 PDT
HOW TO MAKE A FAKE SNOW http://www.instructables.com/id/HOW-TO-MAKE-A-FAKE-SNOW/
HOW TO MAKE A FAKE SNOW - More DIY How To Projects]]> http://cdn.instructables.com/FWH/P1YS/FR0ZHPEM/FWHP1YSFR0ZHPEM.SQUARE2.jpg http://cdn.instructables.com/FWH/P1YS/FR0ZHPEM/FWHP1YSFR0ZHPEM.SQUARE.jpg http://cdn.instructables.com/FWH/P1YS/FR0ZHPEM/FWHP1YSFR0ZHPEM.SMALL.jpg 2743 In this instructable I will show you how to make an artificial snow.It is fun, easy to make ,looks like a real, feel cool to the touch , last for few days and non-toxic(doesn't mean that you can eat it). For the person who live in a country that doesn't have a snow, try to make some!! THE resourc...
By: 2743

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Sun, 15 Feb 2009 01:10:14 PST
Decomposition of Hydrogen peroxide by Potassium permanganate http://www.instructables.com/id/Decomposition-of-Hydrogen-peroxide-by-Potassium-pe/
Decomposition of Hydrogen peroxide by Potassium permanganate - More DIY How To Projects]]> http://cdn.instructables.com/FA1/OFKX/FZHLAUDH/FA1OFKXFZHLAUDH.SQUARE2.jpg http://cdn.instructables.com/FA1/OFKX/FZHLAUDH/FA1OFKXFZHLAUDH.SQUARE.jpg http://cdn.instructables.com/FA1/OFKX/FZHLAUDH/FA1OFKXFZHLAUDH.SMALL.jpg cforchemistry It is a reaction between 50% Hydrogen peroxide (H2O2) and Potassium permanganate (KMnO4) . It is a very vigorous reaction which steam (H2O) and Oxygen (O2) are the desired products, side products include Manganese(IV) oxide (MnO2) and trace amount of Potassium compound.Please rate, comment and subsc...
By: cforchemistry

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Mon, 14 Sep 2009 03:48:29 PDT
Make Copper Sulfate from Copper and Sulfuric acid (3 ways) http://www.instructables.com/id/Make-Copper-Sulfate-from-Copper-and-Sulfuric-acid-/
Make Copper Sulfate from Copper and Sulfuric acid (3 ways) - More DIY How To Projects]]> http://cdn.instructables.com/FBB/08DN/FXK6AFOG/FBB08DNFXK6AFOG.SQUARE2.jpg http://cdn.instructables.com/FBB/08DN/FXK6AFOG/FBB08DNFXK6AFOG.SQUARE.jpg http://cdn.instructables.com/FBB/08DN/FXK6AFOG/FBB08DNFXK6AFOG.SMALL.jpg NurdRage We make copper sulfate from copper and sulfuric acid using two chemical methods and one electrochemical method.Copper does not directly react with sulfuric acid so some form of oxidant is needed. Hydrogen peroxide and nitric acid are excellent oxidants and the first two methods demonstrate this. The...
By: NurdRage

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Sat, 25 Jul 2009 19:52:26 PDT
Make Lye From Salt and Gelatin http://www.instructables.com/id/Make-Lye-From-Salt-and-Gelatin/
Make Lye From Salt and Gelatin - More DIY How To Projects]]> http://cdn.instructables.com/F2A/EZPG/GB5HE1XD/F2AEZPGGB5HE1XD.SQUARE2.jpg http://cdn.instructables.com/F2A/EZPG/GB5HE1XD/F2AEZPGGB5HE1XD.SQUARE.jpg http://cdn.instructables.com/F2A/EZPG/GB5HE1XD/F2AEZPGGB5HE1XD.SMALL.jpg egbertfitzwilly Granny's gone and so is her box of ashes for making lye. Here's a modern technique to make high quality lye (Sodium Hydroxide) at home for any number of reasons, including soap making. We'll be using an electrochemical process called electrolysis in a two chamber apparatus. In one chamber we will p...
By: egbertfitzwilly

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Tue, 13 Jul 2010 21:32:58 PDT
Make Potassium Chlorate from Bleach http://www.instructables.com/id/Make-Potassium-Chlorate-from-Bleach/
Make Potassium Chlorate from Bleach - More DIY How To Projects]]> http://cdn.instructables.com/FZH/CT2A/FUPUPMI1/FZHCT2AFUPUPMI1.SQUARE2.jpg http://cdn.instructables.com/FZH/CT2A/FUPUPMI1/FZHCT2AFUPUPMI1.SQUARE.jpg http://cdn.instructables.com/FZH/CT2A/FUPUPMI1/FZHCT2AFUPUPMI1.SMALL.jpg NurdRage How to Make Potassium Chlorate from Bleach and sodium-free salt. Warning: This produces small amounts of chlorine gas, this should be done outside or in a fumehood. Potassium chlorate is a useful oxidizer and small amounts can be easily made using household chemicals. Start by boiling a large quan...
By: NurdRage

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Thu, 26 Aug 2010 19:09:01 PDT
Diamagnetic Levitation Experiment http://www.instructables.com/id/Diamagnetic-Levitation-Experiment/
Diamagnetic Levitation Experiment - More DIY How To Projects]]> http://cdn.instructables.com/FR8/1U9Y/RL5EYF7J637/FR81U9YRL5EYF7J637.SQUARE2.jpg http://cdn.instructables.com/FR8/1U9Y/RL5EYF7J637/FR81U9YRL5EYF7J637.SQUARE.jpg http://cdn.instructables.com/FR8/1U9Y/RL5EYF7J637/FR81U9YRL5EYF7J637.SMALL.jpg Otherpower Magnetic levitation is really fun to experiment with, and can make a great science fair project. However, it's hard to get dramatic results--the problem goes back to Earnshaw's theorem from 1842. He proved mathematically that any electrical or magnetic levitation would require an extra axis of stabi...
By: Otherpower

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Sun, 25 Feb 2007 11:17:12 PST
How to: High current Microwave oven Transformer http://www.instructables.com/id/How-to-High-current-Microwave-oven-Transformer/
How to: High current Microwave oven Transformer - More DIY How To Projects]]> http://cdn.instructables.com/F85/GTAK/G5KPB9JO/F85GTAKG5KPB9JO.SQUARE2.jpg http://cdn.instructables.com/F85/GTAK/G5KPB9JO/F85GTAKG5KPB9JO.SQUARE.jpg http://cdn.instructables.com/F85/GTAK/G5KPB9JO/F85GTAKG5KPB9JO.SMALL.jpg HazzWold1993  Hey! in this instructable i will be detailing the steps involved in modifying a microwave oven transformer for high current lower voltage use which shall be achieved by removing the transformers original secondary windings and replacing it with thicker ones of your own. Now the thing to take into m...
By: HazzWold1993

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Fri, 19 Feb 2010 01:26:11 PST
MICROWAVE RADIATION http://www.instructables.com/id/MICROWAVE-RADIATION/
MICROWAVE RADIATION - More DIY How To Projects]]> http://cdn.instructables.com/FF5/5DDL/GLL4ZIC0/FF55DDLGLL4ZIC0.SQUARE2.jpg http://cdn.instructables.com/FF5/5DDL/GLL4ZIC0/FF55DDLGLL4ZIC0.SQUARE.jpg http://cdn.instructables.com/FF5/5DDL/GLL4ZIC0/FF55DDLGLL4ZIC0.SMALL.jpg Jimmy Proton I love microwaves, I think they are the coolest thing ever. My science teacher even let me teach a lesson (that I made) on microwaves! On this instructable I will teach you a thing or two about microwave radiation. history of micorwaves Microwaves were first predicted by James Clerk Maxwell (seco...
By: Jimmy Proton

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Sun, 27 Mar 2011 16:57:55 PDT
Distill Hydrogen Peroxide http://www.instructables.com/id/Distill-Hydrogen-Peroxide/
Distill Hydrogen Peroxide - More DIY How To Projects]]> http://cdn.instructables.com/FVG/Y7A2/FGPI7AGP/FVGY7A2FGPI7AGP.SQUARE2.jpg http://cdn.instructables.com/FVG/Y7A2/FGPI7AGP/FVGY7A2FGPI7AGP.SQUARE.jpg http://cdn.instructables.com/FVG/Y7A2/FGPI7AGP/FVGY7A2FGPI7AGP.SMALL.jpg spencer012 If you have read some of my other Instructables you know that a lot of them require oxygen either from the surrounding air or from an oxidizer. Potassium Nitrate is the most common and easily obtainable but, for those of you who, for whatever reason can't obtain it can make your own from hydrogen p...
By: spencer012

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Mon, 26 May 2008 14:01:39 PDT
Determine how magnetic field varies with distance http://www.instructables.com/id/Evaluate-magnetic-field-variation-with-distance/
Determine how magnetic field varies with distance - More DIY How To Projects]]> http://cdn.instructables.com/FLA/X259/HANAYGD5/FLAX259HANAYGD5.SQUARE2.jpg http://cdn.instructables.com/FLA/X259/HANAYGD5/FLAX259HANAYGD5.SQUARE.jpg http://cdn.instructables.com/FLA/X259/HANAYGD5/FLAX259HANAYGD5.SMALL.jpg Bill WW This Instructabler describes how to make a scientific investigation to determine how magnetic field varies with distance. Two methods are presented , and reasonable conclusions made. Note that the magnet used in this Instructable is a thin disk type, not a bar magnet. Tools and equipment: One ra...
By: Bill WW

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Mon, 17 Dec 2012 14:02:17 PST
How to Create and Format a Titration Curve in Excel http://www.instructables.com/id/How-to-Create-and-Format-a-Titration-Curve/
How to Create and Format a Titration Curve in Excel - More DIY How To Projects]]> http://cdn.instructables.com/FCP/GQ2B/H1O5DEO9/FCPGQ2BH1O5DEO9.SQUARE2.jpg http://cdn.instructables.com/FCP/GQ2B/H1O5DEO9/FCPGQ2BH1O5DEO9.SQUARE.jpg http://cdn.instructables.com/FCP/GQ2B/H1O5DEO9/FCPGQ2BH1O5DEO9.SMALL.jpg chembuff These are instructions for how to create an Excel acid-base titration curve for general chemistry. It goes along with Lab #3 for General Chemistry II at CU Boulder.  I created the graph using windows as my OS so if you have a Mac the steps will not be congruent. 
By: chembuff

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Mon, 30 Apr 2012 20:40:58 PDT
Homemade gunpowder http://www.instructables.com/id/Homemade-gunpowder/
Homemade gunpowder - More DIY How To Projects]]> http://cdn.instructables.com/FUE/V9UG/HZI8OD8R/FUEV9UGHZI8OD8R.SQUARE2.jpg http://cdn.instructables.com/FUE/V9UG/HZI8OD8R/FUEV9UGHZI8OD8R.SQUARE.jpg http://cdn.instructables.com/FUE/V9UG/HZI8OD8R/FUEV9UGHZI8OD8R.SMALL.jpg martis_ltu Hello everyone!!!Today i will show you how to make real homemade gunpowder!It's very easy to make and requires only 3 ingredients!So... Let's start :)P.S. In the video i burned less then a gram of gunpowder! So be careful Ingredients So...You will need: Charcoal ( just burn down some wood or buy ...
By: martis_ltu

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Fri, 29 Aug 2014 10:00:04 PDT
Elastic power car http://www.instructables.com/id/Elastic-power-car/
Elastic power car - More DIY How To Projects]]> http://cdn.instructables.com/F6O/4Y80/G43E4JL8/F6O4Y80G43E4JL8.SQUARE2.jpg http://cdn.instructables.com/F6O/4Y80/G43E4JL8/F6O4Y80G43E4JL8.SQUARE.jpg http://cdn.instructables.com/F6O/4Y80/G43E4JL8/F6O4Y80G43E4JL8.SMALL.jpg Dr KAZ In this instructable we create an elastic (rubber band) powered car from scrap material. The car uses a few important physics principles to travel and also teaches skill to use the all important GLUE GUN!  There is a lot of variations of elastic powered "cars" and this variation adds a little elegan...
By: Dr KAZ

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Thu, 1 Jul 2010 08:56:27 PDT
Alcohol Burner http://www.instructables.com/id/Alcohol-Burner/
Alcohol Burner - More DIY How To Projects]]> http://cdn.instructables.com/FAS/8B6O/F25MEE9O/FAS8B6OF25MEE9O.SQUARE2.jpg http://cdn.instructables.com/FAS/8B6O/F25MEE9O/FAS8B6OF25MEE9O.SQUARE.jpg http://cdn.instructables.com/FAS/8B6O/F25MEE9O/FAS8B6OF25MEE9O.SMALL.jpg guyfrom7up Don't have a bunson burner? Don't feel like paying too much for fuel? Parents don't trust you with a bunson burner? Have some alcohol to burn? Than build yourself an alcohol burner for about a dollar or even free! WARNING!!! I am not responsable for any damage caused by this, even though it is...
By: guyfrom7up

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Sat, 26 May 2007 18:35:22 PDT
Collecting Hydrogen and Oxygen http://www.instructables.com/id/Collecting-Hydrogen-and-Oxygen/
Collecting Hydrogen and Oxygen - More DIY How To Projects]]> http://cdn.instructables.com/FLI/4Y6E/F04FMXA0/FLI4Y6EF04FMXA0.SQUARE2.jpg http://cdn.instructables.com/FLI/4Y6E/F04FMXA0/FLI4Y6EF04FMXA0.SQUARE.jpg http://cdn.instructables.com/FLI/4Y6E/F04FMXA0/FLI4Y6EF04FMXA0.SMALL.jpg ferroucious In this instructable I'll give you a simple way to collect Hydrogen gas and if you want also, to collect Oxygen. Depending on the voltage and current that you use for the project this could be hazardous. I used a 14.4 volt power drill battery pack for the process but don't recommend it, I only used ...
By: ferroucious

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Wed, 4 Apr 2007 23:22:21 PDT
High voltage ignition coil supply http://www.instructables.com/id/High-voltage-ignition-coil-supply/
High voltage ignition coil supply - More DIY How To Projects]]> http://cdn.instructables.com/FVF/H33X/FRXW62NF/FVFH33XFRXW62NF.SQUARE2.jpg http://cdn.instructables.com/FVF/H33X/FRXW62NF/FVFH33XFRXW62NF.SQUARE.jpg http://cdn.instructables.com/FVF/H33X/FRXW62NF/FVFH33XFRXW62NF.SMALL.jpg skuitarman In this Instructable I will teach you how to build a High voltage power supply using an Ignition Coil.This project uses a 555 timer based circuit.We use a 555 IC because an ignition coil needs a squire wave signal to power it. so basically the 555 timer is making pulsed DC electricity which powers t...
By: skuitarman

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Mon, 2 Mar 2009 13:08:36 PST
Model rocket recovery wadding http://www.instructables.com/id/Model-rocket-recovery-wadding/
Model rocket recovery wadding - More DIY How To Projects]]> http://cdn.instructables.com/F7E/ZK5P/FQSWZU0S/F7EZK5PFQSWZU0S.SQUARE2.jpg http://cdn.instructables.com/F7E/ZK5P/FQSWZU0S/F7EZK5PFQSWZU0S.SQUARE.jpg http://cdn.instructables.com/F7E/ZK5P/FQSWZU0S/F7EZK5PFQSWZU0S.SMALL.jpg Pyro the maniac Love launching model rockets but don't love the cost? Here's a way to cut costs a bit by making your own recovery waddingThe point of the recovery wadding is to provide a shield between the recovery charge from the engine (hot gases and sparks) and the parachute or other recovery system for the rea...
By: Pyro the maniac

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Sat, 17 Jan 2009 21:10:51 PST
How to Grow Salt Crystals! http://www.instructables.com/id/How-to-Grow-Salt-Crystals/
How to Grow Salt Crystals! - More DIY How To Projects]]> http://cdn.instructables.com/FTC/KXOK/ILQTH7DY/FTCKXOKILQTH7DY.SQUARE2.jpg http://cdn.instructables.com/FTC/KXOK/ILQTH7DY/FTCKXOKILQTH7DY.SQUARE.jpg http://cdn.instructables.com/FTC/KXOK/ILQTH7DY/FTCKXOKILQTH7DY.SMALL.jpg AmyKarle Growing salt crystals on objects to make interesting art forms or for a simple science experiment is easy and fun! Here I'll share how to grow crystals on 3D printed lattices and structures, but you can grow crystals on most anything you can imagine... or just on themselves.This process is easy and...
By: AmyKarle

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Sat, 12 Mar 2016 18:37:45 PST
DIY Microbial Fuel Cell! EASY! http://www.instructables.com/id/DIY-Microbial-Fuel-Cell-easy/
DIY Microbial Fuel Cell! EASY! - More DIY How To Projects]]> http://cdn.instructables.com/F5M/A915/HK6XN9LR/F5MA915HK6XN9LR.SQUARE2.jpg http://cdn.instructables.com/F5M/A915/HK6XN9LR/F5MA915HK6XN9LR.SQUARE.jpg http://cdn.instructables.com/F5M/A915/HK6XN9LR/F5MA915HK6XN9LR.SMALL.jpg paultnylund Let me know if you need any help building one of your own. My name is Paul Nylund, and my partner on the project was Marcia Rojas if you need to cite this. Blueprint: http://goo.gl/Z3Nuf During our testing, we occasionally saw spikes of up to 6 volts while adjusting the apparatus. We were not able...
By: paultnylund

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Mon, 27 May 2013 13:57:30 PDT
Grasping Gravitational Waves: Augmented Reality Robots teach physics fundamentals to children and adults alike http://www.instructables.com/id/Grasping-Gravitational-Waves-Augmented-Reality-Rob/
Grasping Gravitational Waves: Augmented Reality Robots teach physics fundamentals to children and adults alike - More DIY How To Projects]]> http://cdn.instructables.com/FMB/EI2V/ILA1A8FC/FMBEI2VILA1A8FC.SQUARE2.jpg http://cdn.instructables.com/FMB/EI2V/ILA1A8FC/FMBEI2VILA1A8FC.SQUARE.jpg http://cdn.instructables.com/FMB/EI2V/ILA1A8FC/FMBEI2VILA1A8FC.SMALL.gif SteveMann Make invisible gravitational waves, radio waves, sound waves, etc., graspable and more comprehensible with AR (Augmented Reality) robotics using a simple device I invented at the age of 12, in 1974. This device is so simple that a child can build it, yet by combining it with robotics, it can provid...
By: SteveMann

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Tue, 1 Mar 2016 20:39:54 PST
How to make a rubber egg. http://www.instructables.com/id/How-to-make-a-rubber-egg/
How to make a rubber egg. - More DIY How To Projects]]> http://cdn.instructables.com/FZA/GXXJ/FVO9RGFY/FZAGXXJFVO9RGFY.SQUARE2.jpg http://cdn.instructables.com/FZA/GXXJ/FVO9RGFY/FZAGXXJFVO9RGFY.SQUARE.jpg http://cdn.instructables.com/FZA/GXXJ/FVO9RGFY/FZAGXXJFVO9RGFY.SMALL.jpg GameGuy95 This is one of my rubber eggs it actually feels like rubber and, I put food coloring to make it green. step 1: Ingredients You need 1 egg, vinegar, 1 cup, and food coloring(optional). Step 2: the mixture Put the egg in the cup then pour in the vinegar and food coloring if you have some Step...
By: GameGuy95

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Mon, 8 Jun 2009 09:14:17 PDT
Paper Strandbeest Mk 2 http://www.instructables.com/id/Paper-Strandbeest-Mk-2/
Paper Strandbeest Mk 2 - More DIY How To Projects]]> http://cdn.instructables.com/F2V/4X6L/GMX1RL21/F2V4X6LGMX1RL21.SQUARE2.jpg http://cdn.instructables.com/F2V/4X6L/GMX1RL21/F2V4X6LGMX1RL21.SQUARE.jpg http://cdn.instructables.com/F2V/4X6L/GMX1RL21/F2V4X6LGMX1RL21.SMALL.jpg dombeef I made the Paper Strandbeest a while ago(It was my first instructable) And I finally updated it with a real working version! The old one had only 2 leg segments(4 legs total) and it could not walk well. The new one now has 3 leg segments(6 total) and can walk well. The old version is now going to be...
By: dombeef

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Sat, 30 Apr 2011 20:09:55 PDT
A high-power LED torch using a single AA-battery http://www.instructables.com/id/A-high-power-LED-torch-using-a-single-AA-battery/
A high-power LED torch using a single AA-battery - More DIY How To Projects]]> http://cdn.instructables.com/F09/6T7I/FJLOR99W/F096T7IFJLOR99W.SQUARE2.jpg http://cdn.instructables.com/F09/6T7I/FJLOR99W/F096T7IFJLOR99W.SQUARE.jpg http://cdn.instructables.com/F09/6T7I/FJLOR99W/F096T7IFJLOR99W.SMALL.jpg qs This high-efficiency design can power LEDs at 100mA of current and is not much bigger than the battery that powers it. The unique circuit uses 2 commonly available transistors (BC327 and BC337) in an oscillator to boost the 1.2 or 1.5 volts from a rechargeable (nickel) or alkaline battery to the 3+ ...
By: qs

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Thu, 7 Aug 2008 19:35:22 PDT
DIY Cleanroom http://www.instructables.com/id/DIY-Cleanroom/
DIY Cleanroom - More DIY How To Projects]]> http://cdn.instructables.com/FNM/K3Z5/FK75GSPH/FNMK3Z5FK75GSPH.SQUARE2.jpg http://cdn.instructables.com/FNM/K3Z5/FK75GSPH/FNMK3Z5FK75GSPH.SQUARE.jpg http://cdn.instructables.com/FNM/K3Z5/FK75GSPH/FNMK3Z5FK75GSPH.SMALL.jpg viacin A cleanroom is an environment, typically used in manufacturing or scientific research, that has a low level of environmental pollutants such as dust, airborne microbes, aerosol particles and chemical vapors. This isn't an easy task, and isn't completely possible inside a house. But, you can set up a...
By: viacin

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Wed, 20 Aug 2008 18:57:30 PDT
Procedure for proving that a defined sequence converges http://www.instructables.com/id/Procedure-for-proving-that-a-defined-sequence-conv/
Procedure for proving that a defined sequence converges - More DIY How To Projects]]> http://www.instructables.com/static/defaultIMG/default.SQUARE2.png http://www.instructables.com/static/defaultIMG/default.SQUARE.png http://www.instructables.com/static/defaultIMG/default.SMALL.gif napayne This Instructable will go through, step by step, the general method for proving that a sequence converges to some limit via using the definition of convergence.  Quick definition of terms used in this Instructable: 1) Candidate: In a few steps we will look for a "candidate" for a limit of a sequence...
By: napayne

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Fri, 7 Mar 2014 14:16:36 PST
high voltage joule thief! http://www.instructables.com/id/high-voltage-joule-thief/
high voltage joule thief! - More DIY How To Projects]]> http://cdn.instructables.com/FQN/XJHH/FWYHVLU2/FQNXJHHFWYHVLU2.SQUARE2.jpg http://cdn.instructables.com/FQN/XJHH/FWYHVLU2/FQNXJHHFWYHVLU2.SQUARE.jpg http://cdn.instructables.com/FQN/XJHH/FWYHVLU2/FQNXJHHFWYHVLU2.SMALL.jpg 12V this is how to make a high voltage joule thief!the ones i made were 90 and 180v but the more hv turns you do the higher the voltage(about 1v per turn)this circuit runs best @2.4v-3v Materials. you will need:toroid core(ferrite)2n3904(sometimes others work too)512ohom resistorwinding wire(0.15mm ...
By: 12V

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Sun, 12 Jul 2009 09:09:45 PDT
El mejor avión de papel en el mundo. ¡El récord mundial de volar es de 102 metros! http://www.instructables.com/id/Los-mundos-mejor-avión-de-papel-El-récord-mundial-/
El mejor avión de papel en el mundo. ¡El récord mundial de volar es de 102 metros! - More DIY How To Projects]]> http://cdn.instructables.com/FMA/6JJO/HT7ETFQD/FMA6JJOHT7ETFQD.SQUARE2.jpg http://cdn.instructables.com/FMA/6JJO/HT7ETFQD/FMA6JJOHT7ETFQD.SQUARE.jpg http://cdn.instructables.com/FMA/6JJO/HT7ETFQD/FMA6JJOHT7ETFQD.SMALL.jpg struckbyanarrow Este avión de papel es mi favorito, y punto. Es impresionante, rápido, y vuela incréiblemente. Intenta lanzarlo de una estructura alta en tu parque infantil local. Pero ten en cuenta que es posible que no vuelvas a verlo otra vez. También este avión puede caber en cualquier bolsillo de manera muuuy ...
By: struckbyanarrow

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Tue, 25 Mar 2014 14:20:51 PDT
Nitrocellulose http://www.instructables.com/id/Nitrocellulose/
Nitrocellulose - More DIY How To Projects]]> http://cdn.instructables.com/FK2/O7BP/G4JV6WS5/FK2O7BPG4JV6WS5.SQUARE2.jpg http://cdn.instructables.com/FK2/O7BP/G4JV6WS5/FK2O7BPG4JV6WS5.SQUARE.jpg http://cdn.instructables.com/FK2/O7BP/G4JV6WS5/FK2O7BPG4JV6WS5.SMALL.jpg Jaycub This instructable shows an easy way to make nitrocellulose (also known as gun cotton). Nitrocellulose is a fun compound that is safe to handle, burns very fast, and can be used in explosive mixtures like smokeless powder and APNC (acetone peroxide and nitrocellulose), and in fuses, rockets, whatever...
By: Jaycub

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Mon, 18 Jan 2010 09:11:18 PST
Build an antique style crystal radio http://www.instructables.com/id/Build-an-antique-style-crystal-radio/
Build an antique style crystal radio - More DIY How To Projects]]> http://cdn.instructables.com/FHT/8OSU/F5VMX9VB/FHT8OSUF5VMX9VB.SQUARE2.jpg http://cdn.instructables.com/FHT/8OSU/F5VMX9VB/FHT8OSUF5VMX9VB.SQUARE.jpg http://cdn.instructables.com/FHT/8OSU/F5VMX9VB/FHT8OSUF5VMX9VB.SMALL.jpg Ohm I have, for some unknown reason, always been interested in ancient technology, mainly electronics and mechanical things and I have always wanted to make a true old fashioned style crystal radio. A crystal radio, or crystal set as it is sometimes called, is a radio that only uses the power of the rad...
By: Ohm

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Tue, 28 Aug 2007 21:47:44 PDT
How to Make a Battery Out of Mud http://www.instructables.com/id/An-Easy-Cheap-Soil-based-Microbial-Fuel-Cell/
How to Make a Battery Out of Mud - More DIY How To Projects]]> http://cdn.instructables.com/FDW/QM3I/GQO92IT6/FDWQM3IGQO92IT6.SQUARE2.jpg http://cdn.instructables.com/FDW/QM3I/GQO92IT6/FDWQM3IGQO92IT6.SQUARE.jpg http://cdn.instructables.com/FDW/QM3I/GQO92IT6/FDWQM3IGQO92IT6.SMALL.jpg 20StoryLincoln While trying to make a microbial fuel cell apparently I stumbled upon how to make an Earth battery, which is something whose existence I really had no clue about until I made one. While the current it generates is pretty much non-existent I've found that several of these in series are capable of dim...
By: 20StoryLincoln

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Sat, 2 Jul 2011 09:28:31 PDT
How to make a clone in 6 easy steps http://www.instructables.com/id/How-to-make-a-clone-in-6-easy-steps/
How to make a clone in 6 easy steps - More DIY How To Projects]]> http://cdn.instructables.com/FOE/QGDW/FB7FPQDC/FOEQGDWFB7FPQDC.SQUARE2.jpg http://cdn.instructables.com/FOE/QGDW/FB7FPQDC/FOEQGDWFB7FPQDC.SQUARE.jpg http://cdn.instructables.com/FOE/QGDW/FB7FPQDC/FOEQGDWFB7FPQDC.SMALL.jpg mverdo This instructable is for those who want a child of their own but dont have a partner. Materials Before beginning the cloneprocess, you need to have these materials: - Human cells,from the individual who will be cloned. - Media in which these human cells will grow and divide. (breeding oven) ...
By: mverdo

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Mon, 25 Feb 2008 09:47:44 PST
Homemade Gelatin Plates For Growing Microorganisms http://www.instructables.com/id/Homemade-Nutrient-Agar/
Homemade Gelatin Plates For Growing Microorganisms - More DIY How To Projects]]> http://cdn.instructables.com/FMA/7SZQ/HO233QYL/FMA7SZQHO233QYL.SQUARE2.jpg http://cdn.instructables.com/FMA/7SZQ/HO233QYL/FMA7SZQHO233QYL.SQUARE.jpg http://cdn.instructables.com/FMA/7SZQ/HO233QYL/FMA7SZQHO233QYL.SMALL.jpg Luke_Merten Introduction In the microbiology laboratory different types of media are used to grow microorganisms. Nutrient agar is typically used in the laboratory, but can be expensive to buy and difficult to make in a home setting. Gelatin plates are able to grow various types of fungi as well as some bacter...
By: Luke_Merten

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Tue, 19 Nov 2013 16:04:05 PST
How to Identify Constellations http://www.instructables.com/id/How-to-Identify-Constellations/
How to Identify Constellations - More DIY How To Projects]]> http://cdn.instructables.com/FZU/9903/FIY4LH6S/FZU9903FIY4LH6S.SQUARE2.jpg http://cdn.instructables.com/FZU/9903/FIY4LH6S/FZU9903FIY4LH6S.SQUARE.jpg http://cdn.instructables.com/FZU/9903/FIY4LH6S/FZU9903FIY4LH6S.SMALL.jpg raytian First you need: *A star chart (can be found on skymaps.com) *A really dark sky *A good pair of eyes Orient the Star Chart To use a star chart to identify stars and constellations, you must first find the one appropriate for the time of year you are observing. Face North to Orient the star Ch...
By: raytian

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Tue, 22 Jul 2008 13:38:35 PDT
Making A Thermocouple http://www.instructables.com/id/Making-A-Thermocouple/
Making A Thermocouple - More DIY How To Projects]]> http://cdn.instructables.com/FGJ/5MNM/RKMEUR4U2VX/FGJ5MNMRKMEUR4U2VX.SQUARE2.jpg http://cdn.instructables.com/FGJ/5MNM/RKMEUR4U2VX/FGJ5MNMRKMEUR4U2VX.SQUARE.jpg http://cdn.instructables.com/FGJ/5MNM/RKMEUR4U2VX/FGJ5MNMRKMEUR4U2VX.SMALL.jpg trebuchet03 A thermocouple is a device used to measure temperature by utilizing the Seebeck effect. This instructable will show a very simple method of making a thermocouple so you can precisely measure the internal temperature of your thanksgiving turkey. I'm sorry that the one picture I have came out terribl...
By: trebuchet03

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Tue, 21 Nov 2006 02:20:09 PST
How To Make Hot Ice Using Homemade Sodium Acetate http://www.instructables.com/id/How-To-Make-Hot-Ice-Using-Homemade-Sodium-Acetate/
How To Make Hot Ice Using Homemade Sodium Acetate - More DIY How To Projects]]> http://cdn.instructables.com/FN0/V4B9/GVZPH2MJ/FN0V4B9GVZPH2MJ.SQUARE2.jpg http://cdn.instructables.com/FN0/V4B9/GVZPH2MJ/FN0V4B9GVZPH2MJ.SQUARE.jpg http://cdn.instructables.com/FN0/V4B9/GVZPH2MJ/FN0V4B9GVZPH2MJ.SMALL.jpg C.Stokenbury    Have you ever wanted to play with ice, but it was just too cold for you to touch? Well, we have found a way to solve this issue using everyday household objects. Yes, we mean hot ice! Often used in handwarmers, this "ice" warms your hands with the same ice texture. This way, you can do the things...
By: C.Stokenbury

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Tue, 13 Dec 2011 05:47:38 PST
Motor Makeover http://www.instructables.com/id/Motor-Makeover/
Motor Makeover - More DIY How To Projects]]> http://cdn.instructables.com/FCW/GBFQ/IJWUUEF9/FCWGBFQIJWUUEF9.SQUARE2.jpg http://cdn.instructables.com/FCW/GBFQ/IJWUUEF9/FCWGBFQIJWUUEF9.SQUARE.jpg http://cdn.instructables.com/FCW/GBFQ/IJWUUEF9/FCWGBFQIJWUUEF9.SMALL.jpg The Oakland Toy Lab Does it feel like your motor is a little wound up? Time for a makeover! Motors are everywhere, from appliances to toothbrushes to tools. Just about anything that uses electricity and moves. This exploration takes a look inside them to see how they work and experiment with making a more powerful one....
By: The Oakland Toy Lab

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Wed, 27 Jan 2016 05:55:42 PST
How to build a simple robotic arm from Lego Mindstorms NXT? http://www.instructables.com/id/How-to-build-a-simple-robotic-arm-from-Lego-Mindst/
How to build a simple robotic arm from Lego Mindstorms NXT? - More DIY How To Projects]]> http://cdn.instructables.com/FC2/3AT1/FIG8WM9L/FC23AT1FIG8WM9L.SQUARE2.jpg http://cdn.instructables.com/FC2/3AT1/FIG8WM9L/FC23AT1FIG8WM9L.SQUARE.jpg http://cdn.instructables.com/FC2/3AT1/FIG8WM9L/FC23AT1FIG8WM9L.SMALL.jpg roksraka Today, I will tell you how I built my robotic arm from Lego Mindstorms NXT.In fact, I wanted to build a robotic tripod for my camera. I found out, that it's more difficult then it looks. After some experimenting I build this simple robotic arm.I you want to build it too, you need:- Lego Mindstorms N...
By: roksraka

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Fri, 11 Jul 2008 00:10:05 PDT
Heart Dissection http://www.instructables.com/id/Heart-Dissection/
Heart Dissection - More DIY How To Projects]]> http://cdn.instructables.com/F33/TQL1/IJUCHB6N/F33TQL1IJUCHB6N.SQUARE2.jpg http://cdn.instructables.com/F33/TQL1/IJUCHB6N/F33TQL1IJUCHB6N.SQUARE.jpg http://cdn.instructables.com/F33/TQL1/IJUCHB6N/F33TQL1IJUCHB6N.SMALL.jpg The Oakland Toy Lab Have a heart! The original pump that is the drumbeat of our lives is an amazing structure. You've seen them on holiday cards, but now it's time for the real thing. A heart dissection is a fascinating experience that is at the core of our circulatory system, and our body as a whole. There our other d...
By: The Oakland Toy Lab

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Mon, 25 Jan 2016 11:38:00 PST
The Hilsch vortex tube http://www.instructables.com/id/The-Hilsch-vortex-tube/
The Hilsch vortex tube - More DIY How To Projects]]> http://cdn.instructables.com/FYU/ZA2L/F54HJ3I1/FYUZA2LF54HJ3I1.SQUARE2.jpg http://cdn.instructables.com/FYU/ZA2L/F54HJ3I1/FYUZA2LF54HJ3I1.SQUARE.jpg http://cdn.instructables.com/FYU/ZA2L/F54HJ3I1/FYUZA2LF54HJ3I1.SMALL.jpg thecheatscalc The hilsch vortex tube, cools and heats air at the SAME time with no moving parts, and NO electricity. cool huh? it's quite simple, and only a matter of getting the dimensions right! Not to mention the ability to produce EXTREME temperatures! all that's needed is compressed air!So, let's demonstrate...
By: thecheatscalc

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Wed, 15 Aug 2007 18:09:57 PDT
How to make a Voltage multiplier http://www.instructables.com/id/How-to-make-a-Voltage-multiplier/
How to make a Voltage multiplier - More DIY How To Projects]]> http://cdn.instructables.com/FFQ/Y69A/GKS0SK4B/FFQY69AGKS0SK4B.SQUARE2.jpg http://cdn.instructables.com/FFQ/Y69A/GKS0SK4B/FFQY69AGKS0SK4B.SQUARE.jpg http://cdn.instructables.com/FFQ/Y69A/GKS0SK4B/FFQY69AGKS0SK4B.SMALL.jpg Mudbud Hello everyone,   This instructable will tell you how to make a voltage multiplier! So, lets get started :) Here is some info about voltage multipliers if you want to know how they work. If not, then skip to the parts list. Definition - "A voltage multiplier is an electrical circuit that converts ...
By: Mudbud

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Wed, 2 Mar 2011 12:57:15 PST
How to make white phosphorus http://www.instructables.com/id/How-to-make-white-phosphorus/
How to make white phosphorus - More DIY How To Projects]]> http://cdn.instructables.com/F8V/F3G3/HQ9DXNN3/F8VF3G3HQ9DXNN3.SQUARE2.jpg http://cdn.instructables.com/F8V/F3G3/HQ9DXNN3/F8VF3G3HQ9DXNN3.SQUARE.jpg http://cdn.instructables.com/F8V/F3G3/HQ9DXNN3/F8VF3G3HQ9DXNN3.SMALL.jpg brittez White phosphorus in a alliotrope of phophorus. It is highly toxic and can ignite when exposed to air. Here are some materials and chemicals you will need to make white phosphorus: Glass retort Glass container Eye protection Breathing mask or fume hood Gloves Butane torch Tripod for gla...
By: brittez

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Fri, 10 Jan 2014 04:53:40 PST
Aluminum Foil Electroscope http://www.instructables.com/id/Simple-Electroscope/
Aluminum Foil Electroscope - More DIY How To Projects]]> http://cdn.instructables.com/FY0/0I68/FZG43E77/FY00I68FZG43E77.SQUARE2.jpg http://cdn.instructables.com/FY0/0I68/FZG43E77/FY00I68FZG43E77.SQUARE.jpg http://cdn.instructables.com/FY0/0I68/FZG43E77/FY00I68FZG43E77.SMALL.jpg innovationview An Electroscope is an apparatus that is used to detect electrostatic field, it shows in a visible way the presence of an electric charge, with one you can even have a quantitative idea about how strong is the field. The simple electroscope proposed here is constructed with minimum and common materia...
By: innovationview

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Tue, 15 Sep 2009 19:04:06 PDT
DIY Arduino Pulse Sensor http://www.instructables.com/id/Simple-DIY-Pulse-Sensor/
DIY Arduino Pulse Sensor - More DIY How To Projects]]> http://cdn.instructables.com/FC1/WB1K/I2BYLSCY/FC1WB1KI2BYLSCY.SQUARE2.jpg http://cdn.instructables.com/FC1/WB1K/I2BYLSCY/FC1WB1KI2BYLSCY.SQUARE.jpg http://cdn.instructables.com/FC1/WB1K/I2BYLSCY/FC1WB1KI2BYLSCY.SMALL.jpg ohoilett So I mentioned in an earlier Instructable that I am a teaching assistant (TA) for an introductory engineering course for biomedical engineering majors at Vanderbilt University. My main task as a TA is to re-write a few laboratory exercises that the students will be performed during the class. One of...
By: ohoilett

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Tue, 11 Nov 2014 08:52:35 PST
Efficient production of Iron(II) Oxide (Fe2O3) http://www.instructables.com/id/Efficient-production-of-IronII-Oxide-Fe2O3/
Efficient production of Iron(II) Oxide (Fe2O3) - More DIY How To Projects]]> http://cdn.instructables.com/FI4/VMXH/G2L3BY5F/FI4VMXHG2L3BY5F.SQUARE2.jpg http://cdn.instructables.com/FI4/VMXH/G2L3BY5F/FI4VMXHG2L3BY5F.SQUARE.jpg http://cdn.instructables.com/FI4/VMXH/G2L3BY5F/FI4VMXHG2L3BY5F.SMALL.jpg acecase While experimenting with different ways to make Iron Oxide to use in an exothermic reaction demonstration, I tried all the different ways that I found online with varied results. This is the method that I have developed which seems to be the fastest way to Efficiently produce Iron(II) Oxide. This wi...
By: acecase

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Sat, 5 Dec 2009 16:25:23 PST
How to Prepare an Electrophoresis Argarose Gel http://www.instructables.com/id/How-to-Prepare-an-Electrophoresis-Argarose-Gel/
How to Prepare an Electrophoresis Argarose Gel - More DIY How To Projects]]> http://cdn.instructables.com/FE7/A41J/GP7II8MH/FE7A41JGP7II8MH.SQUARE2.jpg http://cdn.instructables.com/FE7/A41J/GP7II8MH/FE7A41JGP7II8MH.SQUARE.jpg http://cdn.instructables.com/FE7/A41J/GP7II8MH/FE7A41JGP7II8MH.SMALL.jpg mmdeaton This instrucable illustrates the process of casting, loading, and processing an electrophoresis argarose gel. Gel electrophoresis separates biological molecules based on size and weight by utilizing electricity. Polar molecules move through the gel at different rates resulting in distinct bands. The...
By: mmdeaton

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Tue, 12 Jul 2011 08:42:41 PDT
Portable Laminar Flow Hood http://www.instructables.com/id/Portable-Laminar-Flow-Hood/
Portable Laminar Flow Hood - More DIY How To Projects]]> http://cdn.instructables.com/FPH/OIJ1/HP7QN12B/FPHOIJ1HP7QN12B.SQUARE2.jpg http://cdn.instructables.com/FPH/OIJ1/HP7QN12B/FPHOIJ1HP7QN12B.SQUARE.jpg http://cdn.instructables.com/FPH/OIJ1/HP7QN12B/FPHOIJ1HP7QN12B.SMALL.jpg antoniraj My interest in Mycology and Tissue culture started long back which led me to collect few laboratory equipment like Petri dishes, test tubes, weighing equipment, measuring glasses and also chemicals like Hydrogen Peroxide, Agar-agar and Potassium Permanganate. One equipment I wanted most but beyond ...
By: antoniraj

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Sun, 15 Dec 2013 07:20:50 PST