Instructables: exploring - technology - science - popular http://www.instructables.com Sat, 13 Feb 2016 15:49:12 PST BLOX v1.01 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

Continue Reading »]]>
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

Continue Reading »]]>
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

Continue Reading »]]>
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

Continue Reading »]]>
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

Continue Reading »]]>
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

Continue Reading »]]>
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

Continue Reading »]]>
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

Continue Reading »]]>
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

Continue Reading »]]>
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

Continue Reading »]]>
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

Continue Reading »]]>
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

Continue Reading »]]>
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

Continue Reading »]]>
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

Continue Reading »]]>
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

Continue Reading »]]>
Sun, 15 Dec 2013 07:20:50 PST
Self-Defeating Fan Car http://www.instructables.com/id/Self-Defeating-Fan-Car/
Self-Defeating Fan Car - More DIY How To Projects]]> http://cdn.instructables.com/FX1/PUWZ/IHXB6H5E/FX1PUWZIHXB6H5E.SQUARE2.jpg http://cdn.instructables.com/FX1/PUWZ/IHXB6H5E/FX1PUWZIHXB6H5E.SQUARE.jpg http://cdn.instructables.com/FX1/PUWZ/IHXB6H5E/FX1PUWZIHXB6H5E.SMALL.jpg The Oakland Toy Lab On your marks, get set, stay put! Have you ever that get up and not-go feeling? Well this car feels it, too. With a fan in the front and a sail in the back, you'd think it would be the perfect self-contained contraption. After all, it's a sail car that can make it's own wind, right? It wants to go e...
By: The Oakland Toy Lab

Continue Reading »]]>
Tue, 8 Dec 2015 08:59:27 PST
Aluminium Sulfate Lead Acid Battery Conversion http://www.instructables.com/id/Aluminium-Sulfate-Lead-Acid-Battery/
Aluminium Sulfate Lead Acid Battery Conversion - More DIY How To Projects]]> http://cdn.instructables.com/FCU/C7EJ/HOHYE31B/FCUC7EJHOHYE31B.SQUARE2.jpg http://cdn.instructables.com/FCU/C7EJ/HOHYE31B/FCUC7EJHOHYE31B.SQUARE.jpg http://cdn.instructables.com/FCU/C7EJ/HOHYE31B/FCUC7EJHOHYE31B.SMALL.jpg speakerbox quick how to on aluminum sulfate electrolyte for lead acid batteries. Purchase Ingredients. you will need aluminium sulfate, a hydrometer, distilled water and a two buckets.also you will need a face mask. long sleeves, safety goggles and water on hand.this job could cause death or serious harm ...
By: speakerbox

Continue Reading »]]>
Fri, 29 Nov 2013 19:29:59 PST
Control any gadgets with your Brain! (Neurofeedback with Arduino Microcontroller) http://www.instructables.com/id/Control-any-gadgets-with-your-Brain-Nero-Feedbac/
Control any gadgets with your Brain! (Neurofeedback with Arduino Microcontroller) - More DIY How To Projects]]> http://cdn.instructables.com/FTA/05TO/GTZK8E4F/FTA05TOGTZK8E4F.SQUARE2.jpg http://cdn.instructables.com/FTA/05TO/GTZK8E4F/FTA05TOGTZK8E4F.SQUARE.jpg http://cdn.instructables.com/FTA/05TO/GTZK8E4F/FTA05TOGTZK8E4F.SMALL.jpg iScience You've Seen many cool gadgets on news like, controlling robot. I've been pretty shaken up with that one. So after some 6 months of research, I made my own! All the parts cost me less then 100$! Thats cool isn't it? Materials: - 1 MindFlex - 50$ EBay! - 1 Arduino Microcontroller <= Visit the off...
By: iScience

Continue Reading »]]>
Thu, 20 Oct 2011 07:21:52 PDT
How to make concrete at home: CoRncrete TU Delft - TfCD (Sam Smits& Zsolt Hayde) http://www.instructables.com/id/How-to-Make-Concrete-at-Home-CoRncrete-TU-Delft-Tf/
How to make concrete at home: CoRncrete TU Delft - TfCD (Sam Smits& Zsolt Hayde) - More DIY How To Projects]]> http://cdn.instructables.com/F07/BRIB/II6E4BRK/F07BRIBII6E4BRK.SQUARE2.jpg http://cdn.instructables.com/F07/BRIB/II6E4BRK/F07BRIBII6E4BRK.SQUARE.jpg http://cdn.instructables.com/F07/BRIB/II6E4BRK/F07BRIBII6E4BRK.SMALL.jpg Zsolt Hayde This instructable helps you to create CoRncrete at home in less then 10 minutes!For more information about the material read the added description document. Ingredients needed: sand, corn starch and waterTools needed: Kitchen scale, mold (which can be put in a microwave), microwave Measure 125g sa...
By: Zsolt Hayde

Continue Reading »]]>
Tue, 15 Dec 2015 09:15:33 PST
Measure the specific heat of water and other fluids http://www.instructables.com/id/Measure-the-specific-heat-of-water-and-other-fluid/
Measure the specific heat of water and other fluids - More DIY How To Projects]]> http://cdn.instructables.com/FMM/32X5/F5R8MSHG/FMM32X5F5R8MSHG.SQUARE2.jpg http://cdn.instructables.com/FMM/32X5/F5R8MSHG/FMM32X5F5R8MSHG.SQUARE.jpg http://cdn.instructables.com/FMM/32X5/F5R8MSHG/FMM32X5F5R8MSHG.SMALL.jpg iwilltry This is a simple experiment to measure the "specific heat" (also called "specific heat capacity") of any fluid. In addition to the principle of specific heat, the experiment also demonstrates some basic electrical principles such as Ohm's law.Specific heat is typically quoted in units of J/g/K or J/...
By: iwilltry

Continue Reading »]]>
Sun, 26 Aug 2007 14:14:16 PDT
The vinegar and baking soda reaction! http://www.instructables.com/id/The-vinegar-and-baking-soda-reaction-in-different-/
The vinegar and baking soda reaction! - More DIY How To Projects]]> http://cdn.instructables.com/FW2/OCNV/HSM55Y7H/FW2OCNVHSM55Y7H.SQUARE2.jpg http://cdn.instructables.com/FW2/OCNV/HSM55Y7H/FW2OCNVHSM55Y7H.SQUARE.jpg http://cdn.instructables.com/FW2/OCNV/HSM55Y7H/FW2OCNVHSM55Y7H.SMALL.jpg JM1999 In this Instructable I will show the readers what happens with the vinegar and baking soda reaction and what I am trying to get is what amount and form is best for an awesome reaction. I will try: Frozen vinegar room temperature baking soda, cold baking soda room temperature vinegar, ...
By: JM1999

Continue Reading »]]>
Wed, 12 Mar 2014 17:51:27 PDT
Build a World's Smallest Electronic Shocker! version 2.5 http://www.instructables.com/id/How-to-build-the-worlds-smallest-shocker-wLED/
Build a World's Smallest Electronic Shocker! version 2.5 - More DIY How To Projects]]> http://cdn.instructables.com/FHF/1GAN/FUVSG9SE/FHF1GANFUVSG9SE.SQUARE2.jpg http://cdn.instructables.com/FHF/1GAN/FUVSG9SE/FHF1GANFUVSG9SE.SQUARE.jpg http://cdn.instructables.com/FHF/1GAN/FUVSG9SE/FHF1GANFUVSG9SE.SMALL.jpg Plasmana It is good to know if the tiny shocker is on or not, by adding a wonderful invention called the "LED", so you don't risk get bitten by the shocker again!Disclaimer: This shocker can be dangerous if used improperly, it gives out about 400 to 450 volts, so I am NOT responsible if you or anybody are in...
By: Plasmana

Continue Reading »]]>
Fri, 22 May 2009 12:09:45 PDT
Mousetrap Car Racer http://www.instructables.com/id/Mousetrap-Car-Racer/
Mousetrap Car Racer - More DIY How To Projects]]> http://cdn.instructables.com/FBB/2G7U/G2HE0DGC/FBB2G7UG2HE0DGC.SQUARE2.jpg http://cdn.instructables.com/FBB/2G7U/G2HE0DGC/FBB2G7UG2HE0DGC.SQUARE.jpg http://cdn.instructables.com/FBB/2G7U/G2HE0DGC/FBB2G7UG2HE0DGC.SMALL.jpg geek27 Recently in Physical Science, we were assigned to construct a mousetrap-powered car.  After a great deal of research, I had a basic idea of what I wanted to make.  The end result is what you see.  This mouse trap car is more for speed than for distance, although it's performance seems to be between ...
By: geek27

Continue Reading »]]>
Sat, 5 Dec 2009 16:39:03 PST
Step By Step Plans to Building a 250,000 Volt Tesla Coil. (REVISED VERSION) http://www.instructables.com/id/Step-By-Step-Plans-to-Building-a-250000-Volt-Tesl/
Step By Step Plans to Building a 250,000 Volt Tesla Coil. (REVISED VERSION) - More DIY How To Projects]]> http://cdn.instructables.com/FLP/9Q1X/FQJZNV08/FLP9Q1XFQJZNV08.SQUARE2.jpg http://cdn.instructables.com/FLP/9Q1X/FQJZNV08/FLP9Q1XFQJZNV08.SQUARE.jpg http://cdn.instructables.com/FLP/9Q1X/FQJZNV08/FLP9Q1XFQJZNV08.SMALL.jpg Tesla Coiler In this Step-By-Step process I will explain 1. How a Spark Gap Tesla Coil works. 2. The parts you will need. 3. The price of each part. 4. Safety. The Parts That You Will Need. The parts you will need to build a tesla coil: 1. 6500 volt 23 milli amp transformer found at amazing1.com 2. 10,000 ...
By: Tesla Coiler

Continue Reading »]]>
Mon, 2 Feb 2009 14:26:04 PST
DIY levitation of a magnetic top http://www.instructables.com/id/DIY-levitation-of-a-magnetic-top/
DIY levitation of a magnetic top - More DIY How To Projects]]> http://cdn.instructables.com/FLT/GEXE/GIRSYFKI/FLTGEXEGIRSYFKI.SQUARE2.jpg http://cdn.instructables.com/FLT/GEXE/GIRSYFKI/FLTGEXEGIRSYFKI.SQUARE.jpg http://cdn.instructables.com/FLT/GEXE/GIRSYFKI/FLTGEXEGIRSYFKI.SMALL.jpg 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 »]]>
Sun, 9 Jan 2011 23:20:55 PST
The Naked Egg: Make an ordinary egg wobbly, bouncy, and squishy using the Scientific Method! http://www.instructables.com/id/The-Naked-Egg-Make-an-ordinary-egg-wobbly-bouncy-a/
The Naked Egg: Make an ordinary egg wobbly, bouncy, and squishy using the Scientific Method! - More DIY How To Projects]]> http://cdn.instructables.com/FJO/O9S4/HSM561ER/FJOO9S4HSM561ER.SQUARE2.jpg http://cdn.instructables.com/FJO/O9S4/HSM561ER/FJOO9S4HSM561ER.SQUARE.jpg http://cdn.instructables.com/FJO/O9S4/HSM561ER/FJOO9S4HSM561ER.SMALL.jpg jmloosen In this Instructable, I'll show you how to make an egg squishy and bouncy using household items, but will also teach you how to use the scientific method. When using the scientific method, remember this acronym: P: Problem H: Hypothesis E: Experiment O: Observations C: Conclusion To make a problem...
By: jmloosen

Continue Reading »]]>
Fri, 14 Mar 2014 10:15:20 PDT
Fix a non-working electronic fly swatter http://www.instructables.com/id/Fix-a-non-working-electronic-fly-swatter/
Fix a non-working electronic fly swatter - More DIY How To Projects]]> http://cdn.instructables.com/FS0/FRFY/FL4SYYB6/FS0FRFYFL4SYYB6.SQUARE2.jpg http://cdn.instructables.com/FS0/FRFY/FL4SYYB6/FS0FRFYFL4SYYB6.SQUARE.jpg http://cdn.instructables.com/FS0/FRFY/FL4SYYB6/FS0FRFYFL4SYYB6.SMALL.jpg Phil B A friend brought me her new electronic fly swatter she bought in another city. It never worked and taking it back would be too difficult. In addition, her swatter was modelled after a tennis racket. It was not the exact unit shown here. She and her husband really enjoy tennis. So, it was import...
By: Phil B

Continue Reading »]]>
Mon, 15 Sep 2008 17:11:15 PDT
Super Glue Fingerprint Fuming http://www.instructables.com/id/Super-Glue-Fingerprint-Fuming/
Super Glue Fingerprint Fuming - More DIY How To Projects]]> http://cdn.instructables.com/F8Q/GNJ5/HJKBJFG7/F8QGNJ5HJKBJFG7.SQUARE2.jpg http://cdn.instructables.com/F8Q/GNJ5/HJKBJFG7/F8QGNJ5HJKBJFG7.SQUARE.jpg http://cdn.instructables.com/F8Q/GNJ5/HJKBJFG7/F8QGNJ5HJKBJFG7.SMALL.jpg DIY Hacks and How Tos   Fingerprinting is an important element of crime scene investigation. You may have heard that superglue (cyanoacrylate) can be used to develop finger prints. But you might not be aware that this technique can easily be performed at home with everyday materials. So in this project, I am going to...
By: DIY Hacks and How Tos

Continue Reading »]]>
Mon, 5 Aug 2013 17:03:23 PDT
Red Cabbage pH Indicator http://www.instructables.com/id/Red-Cabbage-pH-Indicator/
Red Cabbage pH Indicator - More DIY How To Projects]]> http://cdn.instructables.com/F8B/6A0L/HO7XP1NG/F8B6A0LHO7XP1NG.SQUARE2.jpg http://cdn.instructables.com/F8B/6A0L/HO7XP1NG/F8B6A0LHO7XP1NG.SQUARE.jpg http://cdn.instructables.com/F8B/6A0L/HO7XP1NG/F8B6A0LHO7XP1NG.SMALL.jpg Lauren_Freeman1 Introduction: A pH indicator measures whether a substance (usually a liquid) is acidic or basic, and some indicators can also measure how acidic or basic it is. When the indicator comes in contact with a substance, the indicator's color corresponds to that substance's approximate pH, which is a sca...
By: Lauren_Freeman1

Continue Reading »]]>
Tue, 19 Nov 2013 23:20:01 PST
make ferrofluid http://www.instructables.com/id/make-ferrofluid/
make ferrofluid - More DIY How To Projects]]> http://cdn.instructables.com/FL7/5WFB/IH87HRPC/FL75WFBIH87HRPC.SQUARE2.jpg http://cdn.instructables.com/FL7/5WFB/IH87HRPC/FL75WFBIH87HRPC.SQUARE.jpg http://cdn.instructables.com/FL7/5WFB/IH87HRPC/FL75WFBIH87HRPC.SMALL.jpg rayo_viegas Hola amigos, hoy voy a enseñarles a crear algo llamado ferrofluido, es algo realmente entretenido y facil de hacer, como su nombre lo indica es un fluido ferroso que reacciona a los campos magneticos creando formas y movimientos de lo mas divertidas. Materials vamos a necesitar algunas cosas como...
By: rayo_viegas

Continue Reading »]]>
Fri, 20 Nov 2015 20:48:15 PST
Arduino 7 segment countdown timer http://www.instructables.com/id/Arduino-7-segment-countdown-timer/
Arduino 7 segment countdown timer - More DIY How To Projects]]> http://cdn.instructables.com/FJW/QJ4B/G0AMJFNL/FJWQJ4BG0AMJFNL.SQUARE2.jpg http://cdn.instructables.com/FJW/QJ4B/G0AMJFNL/FJWQJ4BG0AMJFNL.SQUARE.jpg http://cdn.instructables.com/FJW/QJ4B/G0AMJFNL/FJWQJ4BG0AMJFNL.SMALL.jpg baharini This project is based on a Kingbright dual 7 segment display and an Arduino Diecimila.it counts down from 20 and lights up pin 13 LED when the timer is complete.It uses no extra hardware which is usefull for low-cost projects.It also features multiplexing to get the job done with only 9 pins altoget...
By: baharini

Continue Reading »]]>
Sun, 4 Oct 2009 05:56:05 PDT
3 Ways To Make Water Glow! http://www.instructables.com/id/3-Ways-To-Make-Water-Glow/
3 Ways To Make Water Glow! - More DIY How To Projects]]> http://cdn.instructables.com/FV3/JMLV/IH0YIDVF/FV3JMLVIH0YIDVF.SQUARE2.jpg http://cdn.instructables.com/FV3/JMLV/IH0YIDVF/FV3JMLVIH0YIDVF.SQUARE.jpg http://cdn.instructables.com/FV3/JMLV/IH0YIDVF/FV3JMLVIH0YIDVF.SMALL.jpg WorkshopWizard Do you have a party to host soon? Stand out from the crowd at your next get together with these 3 super simple science tricks to make water glow!For all of the following you will need a UV black light. These lights have lots of applications in the sfx and lighting industry, but are also great for yo...
By: WorkshopWizard

Continue Reading »]]>
Mon, 16 Nov 2015 08:21:00 PST
THE 5 MINUTE POCKET ROCKET!!! http://www.instructables.com/id/THE-5-MINUTE-POCKET-ROCKET/
THE 5 MINUTE POCKET ROCKET!!! - More DIY How To Projects]]> http://cdn.instructables.com/F2D/TS5H/FX8OUHLF/F2DTS5HFX8OUHLF.SQUARE2.jpg http://cdn.instructables.com/F2D/TS5H/FX8OUHLF/F2DTS5HFX8OUHLF.SQUARE.jpg http://cdn.instructables.com/F2D/TS5H/FX8OUHLF/F2DTS5HFX8OUHLF.SMALL.jpg JackDavies Hello everybody, this is my entry for the Pocket-Sized Contest, please rate and subscribe! The 5 Minute Pocket Rocket, which is very easy to build and will give guaranteed maximum fun. It is built of household items and will take abut 5 minutes to make. It will fly HIGH up in the air, and then la...
By: JackDavies

Continue Reading »]]>
Fri, 17 Jul 2009 11:53:19 PDT
A simple DIY spectrophotometer http://www.instructables.com/id/A-simple-DIY-spectrophotometer/
A simple DIY spectrophotometer - More DIY How To Projects]]> http://cdn.instructables.com/F13/6TNG/GHUDKGQ2/F136TNGGHUDKGQ2.SQUARE2.jpg http://cdn.instructables.com/F13/6TNG/GHUDKGQ2/F136TNGGHUDKGQ2.SQUARE.jpg http://cdn.instructables.com/F13/6TNG/GHUDKGQ2/F136TNGGHUDKGQ2.SMALL.jpg 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 »]]>
Sun, 19 Dec 2010 11:08:44 PST
Microwave Oven Transformer High Voltage Rig http://www.instructables.com/id/Microwave-Oven-Transformer-High-Voltage-Rig/
Microwave Oven Transformer High Voltage Rig - More DIY How To Projects]]> http://cdn.instructables.com/FD5/CBF3/FQMXESGP/FD5CBF3FQMXESGP.SQUARE2.jpg http://cdn.instructables.com/FD5/CBF3/FQMXESGP/FD5CBF3FQMXESGP.SQUARE.jpg http://cdn.instructables.com/FD5/CBF3/FQMXESGP/FD5CBF3FQMXESGP.SMALL.jpg DevCoder For my first Instructable, I decided to make a high voltage power supply out of 2 microwaves. The videos should give you good idea of the final product (I'm using only one of the 2 transformers): Disclaimer This circuit gives off more than enough power to kill you. I am not responsible for any ...
By: DevCoder

Continue Reading »]]>
Sun, 1 Feb 2009 19:24:11 PST
Jet Engine Made Out Of Empty Beer Cans! http://www.instructables.com/id/The-Origional-Beer-Can-Jet-Engine/
Jet Engine Made Out Of Empty Beer Cans! - More DIY How To Projects]]> http://cdn.instructables.com/FDQ/15DW/FKD1LWUD/FDQ15DWFKD1LWUD.SQUARE2.jpg http://cdn.instructables.com/FDQ/15DW/FKD1LWUD/FDQ15DWFKD1LWUD.SQUARE.jpg http://cdn.instructables.com/FDQ/15DW/FKD1LWUD/FDQ15DWFKD1LWUD.SMALL.jpg LetsBuildOne _Build a functional jet engine out of empty beer cans and an old hair dryer. Minimal tools required.I had always wanted to make a jet engine, then, one day i realised i had the parts available to do it. So, I did!It was made out of STEEL beer cans, copper hydraulics tubing and an old hair dryer.It p...
By: LetsBuildOne

Continue Reading »]]>
Sun, 31 Aug 2008 13:24:11 PDT
How to do rescue breathing. (Red Cross) http://www.instructables.com/id/How-to-do-rescue-breathing-Red-Cross/
How to do rescue breathing. (Red Cross) - More DIY How To Projects]]> http://cdn.instructables.com/FNH/W8JY/FTY4CMDS/FNHW8JYFTY4CMDS.SQUARE2.jpg http://cdn.instructables.com/FNH/W8JY/FTY4CMDS/FNHW8JYFTY4CMDS.SQUARE.jpg http://cdn.instructables.com/FNH/W8JY/FTY4CMDS/FNHW8JYFTY4CMDS.SMALL.jpg crazyscott85 I am currently taking my Red Cross Life Saving class. To help me study for my final test I am reciting CPR, Rescue Breathing, Unconscious Choking, and AED steps from memory. This not only benefits me but also the Instructables community and anyone else who wants to study or learn.The steps are relat...
By: crazyscott85

Continue Reading »]]>
Sun, 26 Apr 2009 17:07:48 PDT
The Dream Machine or, How to Be More Awake While You Sleep http://www.instructables.com/id/The-Dream-Machine-or-How-to-Be-More-Awake-While-Yo/
The Dream Machine or, How to Be More Awake While You Sleep - More DIY How To Projects]]> http://cdn.instructables.com/F6C/4MCQ/IGZJ2AQP/F6C4MCQIGZJ2AQP.SQUARE2.jpg http://cdn.instructables.com/F6C/4MCQ/IGZJ2AQP/F6C4MCQIGZJ2AQP.SQUARE.jpg http://cdn.instructables.com/F6C/4MCQ/IGZJ2AQP/F6C4MCQIGZJ2AQP.SMALL.jpg Baybren This is an inexpensive, DIY, Arduino-powered oneironautics device that allows users to alert themselves when they are in a deep dreamstate, without waking up. In other words, this machine will tell you when you are dreaming, while you are dreaming. Why is this such a big deal? Because, this is the f...
By: Baybren

Continue Reading »]]>
Sun, 15 Nov 2015 02:23:32 PST
Smartphone Fundus Camera http://www.instructables.com/id/Smartphone-Fundus-Camera/
Smartphone Fundus Camera - More DIY How To Projects]]> http://cdn.instructables.com/FF2/6VYN/IGWO133L/FF26VYNIGWO133L.SQUARE2.jpg http://cdn.instructables.com/FF2/6VYN/IGWO133L/FF26VYNIGWO133L.SQUARE.jpg http://cdn.instructables.com/FF2/6VYN/IGWO133L/FF26VYNIGWO133L.SMALL.jpg zacharyianhoward IntroMost of us have two of the three major components of fundus camera in out pockets at all times, a CCD camera and a LED light. These of course are on our smartphones. What would happen if we found a way to add the third piece of this equation to our phone, the right lens. This was the central fo...
By: zacharyianhoward

Continue Reading »]]>
Thu, 12 Nov 2015 12:17:48 PST
Synthesizing Conductive Nylon http://www.instructables.com/id/Synthesizing-Conductive-Nylon/
Synthesizing Conductive Nylon - More DIY How To Projects]]> http://cdn.instructables.com/FZX/ONVQ/IGWO1TZ8/FZXONVQIGWO1TZ8.SQUARE2.jpg http://cdn.instructables.com/FZX/ONVQ/IGWO1TZ8/FZXONVQIGWO1TZ8.SQUARE.jpg http://cdn.instructables.com/FZX/ONVQ/IGWO1TZ8/FZXONVQIGWO1TZ8.SMALL.jpg MaddyMaxey Nylon is a popular fiber used to make everything from parachuting material to tights. Maybe you've hear Nylon referenced as a popular thermoplastic or thread. Regardless of how you use it, Nylon is a versatile material that can be made in the lab.In this experiment, I added some bells and whistles t...
By: MaddyMaxey

Continue Reading »]]>
Mon, 9 Nov 2015 22:08:12 PST
Make Glass Mirrors With Silver Nitrate, Sugar, Ammonia and Sodium Hydroxide http://www.instructables.com/id/Make-Glass-Mirrors-With-Silver-Nitrate-Sugar-Am/
Make Glass Mirrors With Silver Nitrate, Sugar, Ammonia and Sodium Hydroxide - More DIY How To Projects]]> http://cdn.instructables.com/FYD/L9EU/FRTTG1EU/FYDL9EUFRTTG1EU.SQUARE2.jpg http://cdn.instructables.com/FYD/L9EU/FRTTG1EU/FYDL9EUFRTTG1EU.SQUARE.jpg http://cdn.instructables.com/FYD/L9EU/FRTTG1EU/FYDL9EUFRTTG1EU.SMALL.jpg NurdRage How to make a mirror silvering solution from silver nitrate, ammonia and sugar. Glass surfaces can be given coatings of silver that make them into mirrors. WARNING: Perform the whole experiment in less than two hours. This is because the solution generates highly poisonous silver nitride on standi...
By: NurdRage

Continue Reading »]]>
Wed, 4 Mar 2009 18:52:08 PST
Homemade orbital rocket? http://www.instructables.com/id/Homemade-orbital-rocket/
Homemade orbital rocket? - More DIY How To Projects]]> http://cdn.instructables.com/FK1/6F1Y/FLJ5KTOL/FK16F1YFLJ5KTOL.SQUARE2.jpg http://cdn.instructables.com/FK1/6F1Y/FLJ5KTOL/FK16F1YFLJ5KTOL.SQUARE.jpg http://cdn.instructables.com/FK1/6F1Y/FLJ5KTOL/FK16F1YFLJ5KTOL.SMALL.jpg iamdenteddisk I recently seen on tv, The U.S. government has stated that anyone who could prove they could reach and maintain orbit would be allowed, ofcorse that comes with many stipulations. Here is my ideas and attempts at building one. Admittedly this is a work in progress but progressing. Here I will open...
By: iamdenteddisk

Continue Reading »]]>
Thu, 25 Sep 2008 10:40:52 PDT
Build a High Power Rocket Nozzle http://www.instructables.com/id/Build-a-High-Power-Rocket-Nozzle/
Build a High Power Rocket Nozzle - More DIY How To Projects]]> http://cdn.instructables.com/FBH/GIUT/IGPEK7JD/FBHGIUTIGPEK7JD.SQUARE2.jpg http://cdn.instructables.com/FBH/GIUT/IGPEK7JD/FBHGIUTIGPEK7JD.SQUARE.jpg http://cdn.instructables.com/FBH/GIUT/IGPEK7JD/FBHGIUTIGPEK7JD.SMALL.jpg als_liahona Experimental High Power Rocketry is an extreme sport which offers makers a variety of opportunities to utilize their skills, obtain new skills, and explore...well, rocket science! In this Instructable I will introduce one method of making nozzles for Experimental High Power Rocket motors. I will a...
By: als_liahona

Continue Reading »]]>
Sat, 7 Nov 2015 12:57:55 PST
How to take over the world http://www.instructables.com/id/How-to-take-over-the-world/
How to take over the world - More DIY How To Projects]]> http://cdn.instructables.com/F0F/4D37/FDLVVJO7/F0F4D37FDLVVJO7.SQUARE2.jpg http://cdn.instructables.com/F0F/4D37/FDLVVJO7/F0F4D37FDLVVJO7.SQUARE.jpg http://cdn.instructables.com/F0F/4D37/FDLVVJO7/F0F4D37FDLVVJO7.SMALL.jpg jehan The best way i figured out to take over the world with minimal death toll. I dont like schoolso this is what i do during class figure out how to take over the world. So far this is my best plan i involves useing agriculture as basicly a bargining chip. Feel free to add to this. this is just the bas...
By: jehan

Continue Reading »]]>
Mon, 10 Mar 2008 22:06:33 PDT
How To Make A Jacobs Ladder http://www.instructables.com/id/How-To-Make-A-Jacobs-Ladder/
How To Make A Jacobs Ladder - More DIY How To Projects]]> http://cdn.instructables.com/F4M/D3UR/FAQED8IO/F4MD3URFAQED8IO.SQUARE2.jpg http://cdn.instructables.com/F4M/D3UR/FAQED8IO/F4MD3URFAQED8IO.SQUARE.jpg http://cdn.instructables.com/F4M/D3UR/FAQED8IO/F4MD3URFAQED8IO.SMALL.jpg fatboyslim This instructable will show you how to make a fully working Jacobs Ladder.You may have seen Jacob ladders in those old Frankenstein movies where you see electricity travelling up two wires disappearing then re appearing at the base of the ladder. WARNING: This project uses HIGH VOLTAGES which can k...
By: fatboyslim

Continue Reading »]]>
Fri, 28 Dec 2007 02:00:18 PST
Permanent Magnets http://www.instructables.com/id/Permanent-Magnets/
Permanent Magnets - More DIY How To Projects]]> http://cdn.instructables.com/FMS/U34O/BVSERIE332L/FMSU34OBVSERIE332L.SQUARE2.jpg http://cdn.instructables.com/FMS/U34O/BVSERIE332L/FMSU34OBVSERIE332L.SQUARE.jpg http://cdn.instructables.com/FMS/U34O/BVSERIE332L/FMSU34OBVSERIE332L.SMALL.jpg FrenchCrawler I've covered how to make a temporary magnet, but what if you want a magnet that won't lose its properties. After I found that article on what my temporary magnetization technique was called (stroking), I was interested in trying to make the permanent magnet ( http://en.wikipedia.org/wiki/Magnets - U...
By: FrenchCrawler

Continue Reading »]]>
Thu, 7 Sep 2006 15:15:06 PDT
Simple Water Filtration (Clean Your Own Dirty Water) http://www.instructables.com/id/Filtration-Experiment-Clean-Your-Own-Dirty-Water/
Simple Water Filtration (Clean Your Own Dirty Water) - More DIY How To Projects]]> http://cdn.instructables.com/FYI/NPLP/FYNT9H4R/FYINPLPFYNT9H4R.SQUARE2.jpg http://cdn.instructables.com/FYI/NPLP/FYNT9H4R/FYINPLPFYNT9H4R.SQUARE.jpg http://cdn.instructables.com/FYI/NPLP/FYNT9H4R/FYINPLPFYNT9H4R.SMALL.jpg Hydroelectric In this practical, you will attempt to treat your own dirty water, make qualitative observations of the results at various stages and then suggest improvements. Read the practical, and identify the separation and purification techniques used.Please Rate and Leave Comments. Thank-you!!! Aim and Mat...
By: Hydroelectric

Continue Reading »]]>
Wed, 3 Jun 2009 00:37:22 PDT
How to Talk Backwards Correctly! http://www.instructables.com/id/How-to-Talk-Backwards-Correctly/
How to Talk Backwards Correctly! - More DIY How To Projects]]> http://cdn.instructables.com/FYR/ELWX/FP319K6S/FYRELWXFP319K6S.SQUARE2.jpg http://cdn.instructables.com/FYR/ELWX/FP319K6S/FYRELWXFP319K6S.SQUARE.jpg http://cdn.instructables.com/FYR/ELWX/FP319K6S/FYRELWXFP319K6S.SMALL.gif itsmanofpopsicle One of the first steps to being a proper word geek, talking backwards is another uneeded language that is sometimes useful as a code. Sdrawkcab! Pick your Word Start off easy, like "shop" or "cat". Split it into SOUNDS. I repeat, SOUNDS. Not letters, nor syllables, SOUNDS. In the case of SHO...
By: itsmanofpopsicle

Continue Reading »]]>
Wed, 24 Dec 2008 11:03:46 PST
the ultimate fog machine http://www.instructables.com/id/the-ultimate-fog-machine/
the ultimate fog machine - More DIY How To Projects]]> http://cdn.instructables.com/F9Z/YC9G/FMMCYZMY/F9ZYC9GFMMCYZMY.SQUARE2.jpg http://cdn.instructables.com/F9Z/YC9G/FMMCYZMY/F9ZYC9GFMMCYZMY.SQUARE.jpg http://cdn.instructables.com/F9Z/YC9G/FMMCYZMY/F9ZYC9GFMMCYZMY.SMALL.jpg somebullcrap this instructable will show you how to make a the ultimate fog machine .and also show you the fog chiller designs i tried even though they did not work for my fogger what you need you don't need much to make the ultimate fogger .in fact you only need four things -mosquito fogger -small propane...
By: somebullcrap

Continue Reading »]]>
Mon, 27 Oct 2008 19:36:39 PDT
Candle Powered Hot Air Balloon http://www.instructables.com/id/Candle-Powered-Hot-Air-Balloon/
Candle Powered Hot Air Balloon - More DIY How To Projects]]> http://cdn.instructables.com/FW9/JLB6/LA6EP27QNI7/FW9JLB6LA6EP27QNI7.SQUARE2.jpg http://cdn.instructables.com/FW9/JLB6/LA6EP27QNI7/FW9JLB6LA6EP27QNI7.SQUARE.jpg http://cdn.instructables.com/FW9/JLB6/LA6EP27QNI7/FW9JLB6LA6EP27QNI7.SMALL.jpg 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 »]]>
Mon, 8 Aug 2005 18:06:58 PDT