Instructables: exploring - technology - science - popular http://www.instructables.com Mon, 27 Mar 2017 23:39:50 PDT BLOX v1.01 How to clean a laser pointer lens http://www.instructables.com/id/How-to-clean-a-laser-pointer-lens/
How to clean a laser pointer lens - More DIY How To Projects]]> https://cdn.instructables.com/FMM/E4V6/FCEIJ3BZ/FMME4V6FCEIJ3BZ.SQUARE2.jpg https://cdn.instructables.com/FMM/E4V6/FCEIJ3BZ/FMME4V6FCEIJ3BZ.SQUARE.jpg https://cdn.instructables.com/FMM/E4V6/FCEIJ3BZ/FMME4V6FCEIJ3BZ.SMALL.jpg grannybasher A very common problem with laser pointers and lasers in general that is easy to fix is dirty lens. I'll briefly explain the two safest and effective methods to clean laser pointer lens.The equipment used in these instructions areA Viper 95mW from Dragonlasers at http://www.dragonlasers.comA lenspen ...
By: grannybasher

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Sun, 10 Feb 2008 23:28:18 PST
Electricity generated from 2 wires stuck into the ground or dirt http://www.instructables.com/id/Electricity-generated-from-2-wires-stuck-into-the-/
Electricity generated from 2 wires stuck into the ground or dirt - More DIY How To Projects]]> https://cdn.instructables.com/FQK/GIL1/GLE1RQ64/FQKGIL1GLE1RQ64.SQUARE2.jpg https://cdn.instructables.com/FQK/GIL1/GLE1RQ64/FQKGIL1GLE1RQ64.SQUARE.jpg https://cdn.instructables.com/FQK/GIL1/GLE1RQ64/FQKGIL1GLE1RQ64.SMALL.jpg crrdlx There simply must be a better way to generate electricity. Or, to produce energy in any form for that matter. I stuck two wires into the ground and they generated 0.8 volts (1/2 a normal battery). Why can't this be used on a practical level?   Electricity was generated: 1. with poles 2. - 4. wi...
By: crrdlx

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Sat, 19 Mar 2011 10:00:01 PDT
Large Bore Vacuum Cannon http://www.instructables.com/id/Large-Bore-Vacuum-Cannon/
Large Bore Vacuum Cannon - More DIY How To Projects]]> https://cdn.instructables.com/FN0/ANW3/IZYGG34F/FN0ANW3IZYGG34F.SQUARE2.jpg https://cdn.instructables.com/FN0/ANW3/IZYGG34F/FN0ANW3IZYGG34F.SQUARE.jpg https://cdn.instructables.com/FN0/ANW3/IZYGG34F/FN0ANW3IZYGG34F.SMALL.jpg NightHawkInLight In this project I'll be building a 4 inch bore vacuum cannon. This sort of cannon can fire large projectiles at high speed, and requires no explosive fuel or compressed air tanks to do so. Instead, the weight of Earth's own atmosphere is the force responsible for accelerating the projectile. With a ...
By: NightHawkInLight

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Tue, 7 Mar 2017 12:55:27 PST
How to make a Plastic Bottle Barometer http://www.instructables.com/id/How-to-make-a-Plastic-Bottle-Barometer/
How to make a Plastic Bottle Barometer - More DIY How To Projects]]> https://cdn.instructables.com/FST/48IE/G0AMK0O7/FST48IEG0AMK0O7.SQUARE2.jpg https://cdn.instructables.com/FST/48IE/G0AMK0O7/FST48IEG0AMK0O7.SQUARE.jpg https://cdn.instructables.com/FST/48IE/G0AMK0O7/FST48IEG0AMK0O7.SMALL.jpg tmross4 This is an easy project and would make a great science experiment. Using a vacuum inside a plastic bottle with water in it, you can observe the changing air pressure with this simple barometer. Please note, this type of barometer only allows you to see if the air pressure is high or low. Supplies ...
By: tmross4

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Mon, 5 Oct 2009 09:21:16 PDT
REAL Ghost Detector http://www.instructables.com/id/REAL-Ghost-Detector/
REAL Ghost Detector - More DIY How To Projects]]> https://cdn.instructables.com/FXR/EIPM/IFCDE4B8/FXREIPMIFCDE4B8.SQUARE2.jpg https://cdn.instructables.com/FXR/EIPM/IFCDE4B8/FXREIPMIFCDE4B8.SQUARE.jpg https://cdn.instructables.com/FXR/EIPM/IFCDE4B8/FXREIPMIFCDE4B8.SMALL.jpg Gursimran Singh 425 I don't believe in supernatural things but after reading too many books and articles about the reality of ghost I came to know that ghost are not like they appear in horror movies! but actually it is a form of energy that gets converted after we die.As we know that energy can neither be made nor be ...
By: Gursimran Singh 425

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Sun, 4 Oct 2015 05:17:58 PDT
Creating Satellite Imagery - Landsat http://www.instructables.com/id/Creating-Satellite-Imagery-Landsat/
Creating Satellite Imagery - Landsat - More DIY How To Projects]]> https://cdn.instructables.com/FQR/5E6U/IZ6D4A4Y/FQR5E6UIZ6D4A4Y.SQUARE2.jpg https://cdn.instructables.com/FQR/5E6U/IZ6D4A4Y/FQR5E6UIZ6D4A4Y.SQUARE.jpg https://cdn.instructables.com/FQR/5E6U/IZ6D4A4Y/FQR5E6UIZ6D4A4Y.SMALL.jpg rtingley IntroductionCreating satellite imagery is quite easy and really a lot of fun. You can see the world in a completely different way. Not to mention, some of those images make for a great desktop background! :)In this tutorial, we're going to focus on imagery from Landsat 8, a NASA (National Aeronaut...
By: rtingley

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Mon, 27 Feb 2017 08:30:58 PST
Storm Glass http://www.instructables.com/id/Storm-Glass/
Storm Glass - More DIY How To Projects]]> https://cdn.instructables.com/FQX/ADRW/IZ6CORHS/FQXADRWIZ6CORHS.SQUARE2.jpg https://cdn.instructables.com/FQX/ADRW/IZ6CORHS/FQXADRWIZ6CORHS.SQUARE.jpg https://cdn.instructables.com/FQX/ADRW/IZ6CORHS/FQXADRWIZ6CORHS.SMALL.jpg Jts37 Long ago, people believed that they could use a Storm Glass to predict the weather up to several days in advance simply by looking at the condition of the solution in the jar and matching it to a corresponding weather condition (as shown in the picture; jar conditions on the left, cooresponding weat...
By: Jts37

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Fri, 24 Feb 2017 15:38:26 PST
Making Ooglo: Luminescent Silicone Paint http://www.instructables.com/id/Making-Ooglo-Luminescent-Silicone-Paint/
Making Ooglo: Luminescent Silicone Paint - More DIY How To Projects]]> https://cdn.instructables.com/FPO/YBHD/GHHILOLN/FPOYBHDGHHILOLN.SQUARE2.jpg https://cdn.instructables.com/FPO/YBHD/GHHILOLN/FPOYBHDGHHILOLN.SQUARE.jpg https://cdn.instructables.com/FPO/YBHD/GHHILOLN/FPOYBHDGHHILOLN.SMALL.jpg 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

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Thu, 9 Dec 2010 19:31:58 PST
How to Convert PowerPoint to EPS files http://www.instructables.com/id/How-to-Convert-PowerPoint-to-EPS-files/
How to Convert PowerPoint to EPS files - More DIY How To Projects]]> https://cdn.instructables.com/FUQ/KO6O/FR122TJW/FUQKO6OFR122TJW.SQUARE2.jpg https://cdn.instructables.com/FUQ/KO6O/FR122TJW/FUQKO6OFR122TJW.SQUARE.jpg https://cdn.instructables.com/FUQ/KO6O/FR122TJW/FUQKO6OFR122TJW.SMALL.jpg blakeredfield This method works with pretty much anything from a Microsoft suite that you might want to print out and use in a LaTeX document. I really want to make a long story short on this one, if at all possible. If you're reading this, then you have been troubled for long enough, so read on:I've been trying ...
By: blakeredfield

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Wed, 11 Feb 2009 06:08:23 PST
How to Pipette http://www.instructables.com/id/How-to-Pipette/
How to Pipette - More DIY How To Projects]]> https://cdn.instructables.com/FYJ/YX10/HUK2CU2M/FYJYX10HUK2CU2M.SQUARE2.jpg https://cdn.instructables.com/FYJ/YX10/HUK2CU2M/FYJYX10HUK2CU2M.SQUARE.jpg https://cdn.instructables.com/FYJ/YX10/HUK2CU2M/FYJYX10HUK2CU2M.SMALL.jpg sef13 Using a pipette is an essential part of working in a science laboratory. Pipettes, specifically micro-pipettes, are used for accurately measuring and transferring small amounts of solutions from on container to another. This is useful when creating a dilution series, plating cell samples. etc. Alth...
By: sef13

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Mon, 28 Apr 2014 22:32:39 PDT
Purification of Copper Sulfate http://www.instructables.com/id/Purification-of-Copper-Sulfate/
Purification of Copper Sulfate - More DIY How To Projects]]> https://cdn.instructables.com/FG5/CEBT/GXUZMYH6/FG5CEBTGXUZMYH6.SQUARE2.jpg https://cdn.instructables.com/FG5/CEBT/GXUZMYH6/FG5CEBTGXUZMYH6.SQUARE.jpg https://cdn.instructables.com/FG5/CEBT/GXUZMYH6/FG5CEBTGXUZMYH6.SMALL.jpg nurdee1 In this instructable I am going to show you how to purify copper sulfate. The reason that I am doing this is because the type you get at the hardware store for cleaning drains has a fair amount of impurities in it. The stuff I got has about two percent impurities in it. This may not seem like very m...
By: nurdee1

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Mon, 30 Jan 2012 17:57:34 PST
Water Rocket Bottle Splicing http://www.instructables.com/id/Water-Rocket-Bottle-Splicing/
Water Rocket Bottle Splicing - More DIY How To Projects]]> https://cdn.instructables.com/FAN/P767/GKJF8PC9/FANP767GKJF8PC9.SQUARE2.jpg https://cdn.instructables.com/FAN/P767/GKJF8PC9/FANP767GKJF8PC9.SQUARE.jpg https://cdn.instructables.com/FAN/P767/GKJF8PC9/FANP767GKJF8PC9.SMALL.jpg air.command Introduction This tutorial describes how to splice two bottles together when you only have bottles of the same size. Splicing bottles allows you to create larger capacity and longer water rockets. Although this tutorial shows how to splice 2 liter bottles the same technique can be applied to other ...
By: air.command

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Fri, 25 Feb 2011 00:17:51 PST
LED Polarity Tester http://www.instructables.com/id/LED-Polarity-Tester/
LED Polarity Tester - More DIY How To Projects]]> https://cdn.instructables.com/FPB/EG4N/FK8FVU92/FPBEG4NFK8FVU92.SQUARE2.jpg https://cdn.instructables.com/FPB/EG4N/FK8FVU92/FPBEG4NFK8FVU92.SQUARE.jpg https://cdn.instructables.com/FPB/EG4N/FK8FVU92/FPBEG4NFK8FVU92.SMALL.jpg viacin Ever soldered a LED into your project backwards? It can really mess up a good day! If you don't know, LED's have a positive side and a negative side, and will only light up when wired correctly. Most LED's have one longer lead to indicate the polarity, but not all. Here's a simple solution to find...
By: viacin

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Sat, 23 Aug 2008 15:33:24 PDT
10 minute trash/garbage/bin bag hot air balloons 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]]> https://cdn.instructables.com/FM0/Z838/G51GAH6H/FM0Z838G51GAH6H.SQUARE2.jpg https://cdn.instructables.com/FM0/Z838/G51GAH6H/FM0Z838G51GAH6H.SQUARE.jpg https://cdn.instructables.com/FM0/Z838/G51GAH6H/FM0Z838G51GAH6H.SMALL.jpg 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

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Mon, 8 Feb 2010 11:47:39 PST
High Voltage Power Supply from Laser Printer http://www.instructables.com/id/High-Voltage-Power-Supply-from-Laser-Printer/
High Voltage Power Supply from Laser Printer - More DIY How To Projects]]> https://cdn.instructables.com/FSD/HZ8E/HRBN9Y3R/FSDHZ8EHRBN9Y3R.SQUARE2.jpg https://cdn.instructables.com/FSD/HZ8E/HRBN9Y3R/FSDHZ8EHRBN9Y3R.SQUARE.jpg https://cdn.instructables.com/FSD/HZ8E/HRBN9Y3R/FSDHZ8EHRBN9Y3R.SMALL.jpg bobyong808 Laser Printers are treasure troves of electronic goodies from gears to lasers to high voltage power supplies. High voltage is required in laser printing to create electrostatic charges to determine where the toner sticks, creating letters and images on paper. However, modern laser printers with thei...
By: bobyong808

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Thu, 6 Feb 2014 05:28:05 PST
How to make your own telescope mirror http://www.instructables.com/id/How-to-make-your-own-telescope-mirror/
How to make your own telescope mirror - More DIY How To Projects]]> https://cdn.instructables.com/FU6/EQ97/GQTM7CIU/FU6EQ97GQTM7CIU.SQUARE2.jpg https://cdn.instructables.com/FU6/EQ97/GQTM7CIU/FU6EQ97GQTM7CIU.SQUARE.jpg https://cdn.instructables.com/FU6/EQ97/GQTM7CIU/FU6EQ97GQTM7CIU.SMALL.jpg nightstang [Fig 1] This is a large piece of glass a woman off Craigslist gave me. It was 40"x40" and 0.75" thick. Its what I decided to use to make the mirror. Cutting it into smaller sections can be difficult but scoring it with a glass cutter and tapping the line with a hammer will generally give you a good ...
By: nightstang

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Tue, 2 Aug 2011 18:55:43 PDT
Double-slit Interference Experiment http://www.instructables.com/id/Double-slit-Interference-Experiment/
Double-slit Interference Experiment - More DIY How To Projects]]> https://cdn.instructables.com/FQ7/YJJR/FNNJYCHK/FQ7YJJRFNNJYCHK.SQUARE2.jpg https://cdn.instructables.com/FQ7/YJJR/FNNJYCHK/FQ7YJJRFNNJYCHK.SQUARE.jpg https://cdn.instructables.com/FQ7/YJJR/FNNJYCHK/FQ7YJJRFNNJYCHK.SMALL.jpg kelseymh A classic experiment to demonstrate the wave nature of light involves double-slit interference. Running the same experiment with a source that outputs just one photon at a time can demonstrate one of the weird features of quantum-mechanics -- wave/particle duality.This Instructable uses a do-it-your...
By: kelseymh

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Tue, 3 Nov 2009 23:09:19 PST
LED Pulse Sensor (PPG) for Arduino http://www.instructables.com/id/LED-Pulse-Sensor-PPG-for-Arduino/
LED Pulse Sensor (PPG) for Arduino - More DIY How To Projects]]> https://cdn.instructables.com/F0A/E8UT/I4SCDW2U/F0AE8UTI4SCDW2U.SQUARE2.jpg https://cdn.instructables.com/F0A/E8UT/I4SCDW2U/F0AE8UTI4SCDW2U.SQUARE.jpg https://cdn.instructables.com/F0A/E8UT/I4SCDW2U/F0AE8UTI4SCDW2U.SMALL.jpg Marc_Escobaem Within this Instructable i will show you, how to implement a simple PPG (photoplethysmogram) sensor for arduino. This device uses infrared light to measure you pulse. You may know this technique from the fingertip pulse sensors in hospitals. This techniques gets more and more important again in wear...
By: Marc_Escobaem

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Sun, 11 Jan 2015 09:28:54 PST
How to Make Ammonium Nitrate http://www.instructables.com/id/How-to-Make-Ammonium-Nitrate/
How to Make Ammonium Nitrate - More DIY How To Projects]]> https://cdn.instructables.com/F7C/G9AV/G8C3UJXC/F7CG9AVG8C3UJXC.SQUARE2.jpg https://cdn.instructables.com/F7C/G9AV/G8C3UJXC/F7CG9AVG8C3UJXC.SQUARE.jpg https://cdn.instructables.com/F7C/G9AV/G8C3UJXC/F7CG9AVG8C3UJXC.SMALL.gif 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

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Sat, 24 Apr 2010 18:42:31 PDT
How to galvanize metal (for rust protection) http://www.instructables.com/id/How-to-galvanize-metal-for-rust-protection/
How to galvanize metal (for rust protection) - More DIY How To Projects]]> https://cdn.instructables.com/F48/BQPJ/G9S0ZQ2S/F48BQPJG9S0ZQ2S.SQUARE2.jpg https://cdn.instructables.com/F48/BQPJ/G9S0ZQ2S/F48BQPJG9S0ZQ2S.SQUARE.jpg https://cdn.instructables.com/F48/BQPJ/G9S0ZQ2S/F48BQPJG9S0ZQ2S.SMALL.jpg NurdRage We show you how to galvanize metal objects to protect them rust. First we get 30g of zinc sulfate and dissolve it into 100mL of water. Zinc sulfate was made back in our video on making a copper sulfate and zinc battery: http://www.youtube.com/watch?v=Id3tL2iI0Vw Then connect the item you want ...
By: NurdRage

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Mon, 31 May 2010 17:56:35 PDT
Model Rocket Launch Controller http://www.instructables.com/id/Model-Rocket-Launch-Controller/
Model Rocket Launch Controller - More DIY How To Projects]]> https://cdn.instructables.com/FHQ/GN7A/FTY4CHCN/FHQGN7AFTY4CHCN.SQUARE2.jpg https://cdn.instructables.com/FHQ/GN7A/FTY4CHCN/FHQGN7AFTY4CHCN.SQUARE.jpg https://cdn.instructables.com/FHQ/GN7A/FTY4CHCN/FHQGN7AFTY4CHCN.SMALL.jpg fennecfanatic Two weeks ago, I walked into physics lab to see the lab tech drawing a circuit diagram on the board. It rapidly became clear that this diagram was for a launch controller for model rockets. Apparently my physics professor had built one, and we were about to use it to set off rockets.After the ensuin...
By: fennecfanatic

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Mon, 27 Apr 2009 00:22:14 PDT
Speedy Gonzales: How to Make a Mousetrap Racecar http://www.instructables.com/id/Speedy-Gonzales-How-to-Make-a-Mousetrap-Racecar/
Speedy Gonzales: How to Make a Mousetrap Racecar - More DIY How To Projects]]> https://cdn.instructables.com/FVJ/1FVK/FB7FPPEV/FVJ1FVKFB7FPPEV.SQUARE2.jpg https://cdn.instructables.com/FVJ/1FVK/FB7FPPEV/FVJ1FVKFB7FPPEV.SQUARE.jpg https://cdn.instructables.com/FVJ/1FVK/FB7FPPEV/FVJ1FVKFB7FPPEV.SMALL.jpg Labot2001 Oh, what better a way to start off the new semester than by building a racecar? Why, building a racecar using a mousetrap, of course!In this Instructable, I will not only show you how to build a mousetrap car, but also some tips and tricks that I learned in my own building process.Back off, PETA. No...
By: Labot2001

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Mon, 14 Jan 2008 17:55:02 PST
How to make a match rocket http://www.instructables.com/id/How-to-make-a-match-rocket-2/
How to make a match rocket - More DIY How To Projects]]> https://cdn.instructables.com/FRM/VJQX/FNI43TIZ/FRMVJQXFNI43TIZ.SQUARE2.jpg https://cdn.instructables.com/FRM/VJQX/FNI43TIZ/FRMVJQXFNI43TIZ.SQUARE.jpg https://cdn.instructables.com/FRM/VJQX/FNI43TIZ/FRMVJQXFNI43TIZ.SMALL.jpg Bobman2 Match rockets are fun and easy to use it will take you under 1 min to make one here is how: I can not be held responsible for any blown of hands etc What you will need What you will need: Aluminium foil Scissors Wooden matches X2 Your brain Ok lets start How to build it Get 2 matches and pl...
By: Bobman2

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Sat, 15 Nov 2008 23:15:54 PST
How to Make Black Snake Fireworks With & Without Fire http://www.instructables.com/id/How-to-Make-Black-Snake-Fireworks-With-Without-F/
How to Make Black Snake Fireworks With & Without Fire - More DIY How To Projects]]> https://cdn.instructables.com/FNX/GRLF/HJKBMXDX/FNXGRLFHJKBMXDX.SQUARE2.jpg https://cdn.instructables.com/FNX/GRLF/HJKBMXDX/FNXGRLFHJKBMXDX.SQUARE.jpg https://cdn.instructables.com/FNX/GRLF/HJKBMXDX/FNXGRLFHJKBMXDX.SMALL.jpg pmadero In this video, I'll be showing you how classic black snakes work and how to make them at home. There are actually two methods covered in the video, one that uses fire and one that does not. Black Snake Version 1 (Fire) .Powdered sugar .Sodium bicarbonate (baking soda) .Lighter fluid or alcohol Mix...
By: pmadero

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Wed, 7 Aug 2013 23:16:57 PDT
Steam Turbine, The Easy DIY Way http://www.instructables.com/id/Steam-Turbine-The-Easy-DIY-Way/
Steam Turbine, The Easy DIY Way - More DIY How To Projects]]> https://cdn.instructables.com/FTI/Z4T7/FK75GZS0/FTIZ4T7FK75GZS0.SQUARE2.jpg https://cdn.instructables.com/FTI/Z4T7/FK75GZS0/FTIZ4T7FK75GZS0.SQUARE.jpg https://cdn.instructables.com/FTI/Z4T7/FK75GZS0/FTIZ4T7FK75GZS0.SMALL.jpg LetsBuildOne Heron's steam ball (turbine) made from a tin of condensed milk and some copper pipe.I designed and built the origional one of these when i was about seven years old and the design hasent changed since. Since it was designed by a seven yr old its simple, debatably free and easy to make.This is probab...
By: LetsBuildOne

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Tue, 26 Aug 2008 10:03:00 PDT
Fitzroy Storm Glass (18th Century Weather Prediction Device) http://www.instructables.com/id/Fitzroy-Storm-Glass-18th-Century-Weather-Predictio/
Fitzroy Storm Glass (18th Century Weather Prediction Device) - More DIY How To Projects]]> https://cdn.instructables.com/F0J/I0LD/IXAPZL9N/F0JI0LDIXAPZL9N.SQUARE2.jpg https://cdn.instructables.com/F0J/I0LD/IXAPZL9N/F0JI0LDIXAPZL9N.SQUARE.jpg https://cdn.instructables.com/F0J/I0LD/IXAPZL9N/F0JI0LDIXAPZL9N.SMALL.jpg NightHawkInLight A storm glass is an 18th century weather prediction device made famous by Admiral Fitzroy, captain of the H.M.S. Beagle. You may recognize that ship name as the same one that Charles Darwin voyaged on. At the same time that Darwin was recording his biological findings, Fitzroy was recording his obse...
By: NightHawkInLight

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Fri, 30 Dec 2016 22:08:08 PST
Make a Rube Goldberg Machine! http://www.instructables.com/id/Make-a-Rube-Goldberg-Machine/
Make a Rube Goldberg Machine! - More DIY How To Projects]]> https://cdn.instructables.com/F3E/YB4X/HFD1K1YK/F3EYB4XHFD1K1YK.SQUARE2.jpg https://cdn.instructables.com/F3E/YB4X/HFD1K1YK/F3EYB4XHFD1K1YK.SQUARE.jpg https://cdn.instructables.com/F3E/YB4X/HFD1K1YK/F3EYB4XHFD1K1YK.SMALL.jpg jill710 http://www.youtube.com/watch?v=oyOQojaLC14 This How-To Video shows you how to make your own Rube Goldberg machine! A Rube Goldberg machine is a series of simple machines that work together to perform one simple task. It was coined by a famous cartoonist, Rube Goldberg, whose cartoons showed numerous...
By: jill710

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Mon, 15 Apr 2013 13:35:48 PDT
Acoustic Tractor Beam http://www.instructables.com/id/Acoustic-Tractor-Beam/
Acoustic Tractor Beam - More DIY How To Projects]]> https://cdn.instructables.com/FG3/PNU3/IXGFRNUE/FG3PNU3IXGFRNUE.SQUARE2.jpg https://cdn.instructables.com/FG3/PNU3/IXGFRNUE/FG3PNU3IXGFRNUE.SQUARE.jpg https://cdn.instructables.com/FG3/PNU3/IXGFRNUE/FG3PNU3IXGFRNUE.SMALL.jpg Asier Marzo Tractor Beams are mysterious waves that can attract particles towards the source. Here, we will show you how to build an Acoustic Tractor Beam with components that can be bought directly on the Internet for less than 75$.With this Instructable you will be able to get in your hands a device that it w...
By: Asier Marzo

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Tue, 3 Jan 2017 07:55:44 PST
RPiScope: a raspberry pi microscope, build from laser cut acrylic parts http://www.instructables.com/id/ARPM-Another-raspberry-pi-microscope-made-from-Ple/
RPiScope: a raspberry pi microscope, build from laser cut acrylic parts - More DIY How To Projects]]> https://cdn.instructables.com/FDV/KAYX/IGL8IN4W/FDVKAYXIGL8IN4W.SQUARE2.jpg https://cdn.instructables.com/FDV/KAYX/IGL8IN4W/FDVKAYXIGL8IN4W.SQUARE.jpg https://cdn.instructables.com/FDV/KAYX/IGL8IN4W/FDVKAYXIGL8IN4W.SMALL.jpg Dr H Work in progress. Version: 29 Nov 2015Step 1: IntroductionStep 2: Taking images & example images (have a look on the fly movie)Step 3: Building instructionsStep 4: Reflected light vs. transillumination microscopyStep 5: SVG files and other instructionsIntroductionBased on the RPI camera and LEGO bri...
By: Dr H

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Wed, 4 Nov 2015 14:24:41 PST
Control Your Telescope Using Stellarium & Arduino http://www.instructables.com/id/Control-Your-Telescope-Using-Stellarium-Arduino/
Control Your Telescope Using Stellarium & Arduino - More DIY How To Projects]]> https://cdn.instructables.com/FKF/F5GZ/IRG4HMEW/FKFF5GZIRG4HMEW.SQUARE2.jpg https://cdn.instructables.com/FKF/F5GZ/IRG4HMEW/FKFF5GZIRG4HMEW.SQUARE.jpg https://cdn.instructables.com/FKF/F5GZ/IRG4HMEW/FKFF5GZIRG4HMEW.SMALL.jpg NelsonFerraz I am fascinated by astronomy since the first time I looked to the night sky. Recently, I bought a 8" Newtonian telescope that came with a Dobsonian mount. It's a nice mount (cheap, portable and very easy to use), but to get what you want to see, you need to know the sky like the palm of your hands (...
By: NelsonFerraz

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Thu, 4 Aug 2016 08:55:51 PDT
How To Make Epsom Salt Crysals http://www.instructables.com/id/How-To-Make-Epsom-Salt-Crysals/
How To Make Epsom Salt Crysals - More DIY How To Projects]]> https://cdn.instructables.com/FWX/BGX3/FC2BTV5I/FWXBGX3FC2BTV5I.SQUARE2.jpg https://cdn.instructables.com/FWX/BGX3/FC2BTV5I/FWXBGX3FC2BTV5I.SQUARE.jpg https://cdn.instructables.com/FWX/BGX3/FC2BTV5I/FWXBGX3FC2BTV5I.SMALL.jpg georgegoalie This is my first instructable, so take it easy with the comments What You Need: You Will Need: 1/4 cup (container)of Epsom Salts (Magnesium Sufate) 1/2 cup (container) of tap water Shallow bowl or dish Food Colouring (optional) Sponge (optional) Time (it took me three days, but it depends on sun...
By: georgegoalie

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Thu, 7 Feb 2008 04:46:56 PST
Rat Trap Car http://www.instructables.com/id/Rat-Trap-Car/
Rat Trap Car - More DIY How To Projects]]> https://cdn.instructables.com/FVS/QQT2/F8OUNRQH/FVSQQT2F8OUNRQH.SQUARE2.jpg https://cdn.instructables.com/FVS/QQT2/F8OUNRQH/FVSQQT2F8OUNRQH.SQUARE.jpg https://cdn.instructables.com/FVS/QQT2/F8OUNRQH/FVSQQT2F8OUNRQH.SMALL.jpg bakenbitz This project was inspired by LarrySDonald's Mouse Trap Car. I give him full credit for the idea. Anyway, this is a very similar thing except with a twist. My car is made with a rat trap instead of a mouse trap. I had some knex lying around and I thought that they could make great wheels and axles. T...
By: bakenbitz

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Tue, 6 Nov 2007 16:46:15 PST
Making a Saline or Hydroxide Solution http://www.instructables.com/id/Making-a-Saline-or-Hydroxide-Solution/
Making a Saline or Hydroxide Solution - More DIY How To Projects]]> https://cdn.instructables.com/FA0/4ADL/G4JNYTQ1/FA04ADLG4JNYTQ1.SQUARE2.jpg https://cdn.instructables.com/FA0/4ADL/G4JNYTQ1/FA04ADLG4JNYTQ1.SQUARE.jpg https://cdn.instructables.com/FA0/4ADL/G4JNYTQ1/FA04ADLG4JNYTQ1.SMALL.jpg egbertfitzwilly A classroom suitable method to make electrolyte solutions of any strength for al-air or microbial fuel cells if a heat source is available. Along the way we will learn about calculating ratios, percentages and solubility of inorganic chemicals in water. Plus these solutions can be used with other pr...
By: egbertfitzwilly

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Wed, 20 Jan 2010 22:46:49 PST
The World's Simplest Electrostatic Machine http://www.instructables.com/id/The-Worlds-Simplest-Electrostatic-Machine/
The World's Simplest Electrostatic Machine - More DIY How To Projects]]> https://cdn.instructables.com/FLK/O7N7/FKLD2JTZ/FLKO7N7FKLD2JTZ.SQUARE2.jpg https://cdn.instructables.com/FLK/O7N7/FKLD2JTZ/FLKO7N7FKLD2JTZ.SQUARE.jpg https://cdn.instructables.com/FLK/O7N7/FKLD2JTZ/FLKO7N7FKLD2JTZ.SMALL.jpg innovationview With a simple plastic cutting board you can build an electrostatic generating device, powerful enough to produce little shocks and even small sparks. This is a really simple project that can be made in very little time: the power of electricity is just a few steps away!Also see how to build a V...
By: innovationview

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Tue, 2 Sep 2008 17:50:52 PDT
Simple method of getting a spark plug to spark http://www.instructables.com/id/Simple-method-of-getting-a-spark-plug-to-spark/
Simple method of getting a spark plug to spark - More DIY How To Projects]]> https://cdn.instructables.com/FYK/H7JK/HFWSTKFH/FYKH7JKHFWSTKFH.SQUARE2.jpg https://cdn.instructables.com/FYK/H7JK/HFWSTKFH/FYKH7JKHFWSTKFH.SQUARE.jpg https://cdn.instructables.com/FYK/H7JK/HFWSTKFH/FYKH7JKHFWSTKFH.SMALL.jpg r570sv http://youtu.be/028nBgoFjSg   Purpose I was working on a Halloween prop that was going to have a flame shoot out of it periodically so I needed some type of igniter to light the flammable liquid that would produce the flame.  My first thought was to use a spark plug to do the job.  I have a lot ...
By: r570sv

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Sat, 27 Apr 2013 20:24:49 PDT
Work safely with high voltage http://www.instructables.com/id/Work-safely-with-high-voltage/
Work safely with high voltage - More DIY How To Projects]]> https://cdn.instructables.com/FH0/7NY9/G3TDWD9D/FH07NY9G3TDWD9D.SQUARE2.jpg https://cdn.instructables.com/FH0/7NY9/G3TDWD9D/FH07NY9G3TDWD9D.SQUARE.jpg https://cdn.instructables.com/FH0/7NY9/G3TDWD9D/FH07NY9G3TDWD9D.SMALL.jpg kovo There are a bunch of great instructables and other projects on the interwebs that involve high voltage power supplies. Most include a disclaimer that says some variant of "if you have any sense, don't do this project." But rarely is there a reasonable and rational discussion of the risks of working ...
By: kovo

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Tue, 5 Jan 2010 15:10:49 PST
Rock Tests 101 http://www.instructables.com/id/Rock-Tests-101/
Rock Tests 101 - More DIY How To Projects]]> https://cdn.instructables.com/F6J/SI0G/II8ZW1KK/F6JSI0GII8ZW1KK.SQUARE2.jpg https://cdn.instructables.com/F6J/SI0G/II8ZW1KK/F6JSI0GII8ZW1KK.SQUARE.jpg https://cdn.instructables.com/F6J/SI0G/II8ZW1KK/F6JSI0GII8ZW1KK.SMALL.jpg The Oakland Toy Lab Rocks. They just sit around all day, so it's time to put them to the test. And if you thought tests were hard when you were younger, try when you're several million years old! This is a set of rock tests to bring Earth Science to life for the budding young geologist to the expert explorer. A lot of ...
By: The Oakland Toy Lab

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Wed, 16 Dec 2015 11:36:39 PST
How to make Chlorine Gas http://www.instructables.com/id/How-to-make-Chlorine-Gas-1/
How to make Chlorine Gas - More DIY How To Projects]]> https://cdn.instructables.com/FSQ/HT2I/IAGMEO3Y/FSQHT2IIAGMEO3Y.SQUARE2.jpg https://cdn.instructables.com/FSQ/HT2I/IAGMEO3Y/FSQHT2IIAGMEO3Y.SQUARE.jpg https://cdn.instructables.com/FSQ/HT2I/IAGMEO3Y/FSQHT2IIAGMEO3Y.SMALL.jpg RandomBuilder A lot of you probably know electrolysis with water. In this instructable I am going to show you how to take electrolysis to another level, with chlorine gas as a product. Safety Instructions + Theory WARNING! Chlorine Gas is toxic and this experiment should be performed outside or under a fume ho...
By: RandomBuilder

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Wed, 3 Jun 2015 09:31:23 PDT
Awesome Chemistry Experiment!! (Just 4 simple steps) http://www.instructables.com/id/Awesome-Chemistry-Experiment-Just-4-simple-step/
Awesome Chemistry Experiment!! (Just 4 simple steps) - More DIY How To Projects]]> https://cdn.instructables.com/FTK/JQXV/GWF6EDP7/FTKJQXVGWF6EDP7.SQUARE2.jpg https://cdn.instructables.com/FTK/JQXV/GWF6EDP7/FTKJQXVGWF6EDP7.SQUARE.jpg https://cdn.instructables.com/FTK/JQXV/GWF6EDP7/FTKJQXVGWF6EDP7.SMALL.jpg Biodynamic I would call this experiment... Awesome.  It involves the same materials used to create a worx bomb, but instead of trapping the Hydrogen gas inside a sealed container, the gas is captured with a standard party balloon and ignited in the safest way possible. First: Stern warning / disclaimer... Don...
By: Biodynamic

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Wed, 21 Dec 2011 10:56:29 PST
HOW TO MAKE A ROTATING LAMP SHADE http://www.instructables.com/id/HOW-TO-MAKE-A-ROTATING-LAMP-SHADE/
HOW TO MAKE A ROTATING LAMP SHADE - More DIY How To Projects]]> https://cdn.instructables.com/FFR/SW19/HTD7SML5/FFRSW19HTD7SML5.SQUARE2.jpg https://cdn.instructables.com/FFR/SW19/HTD7SML5/FFRSW19HTD7SML5.SQUARE.jpg https://cdn.instructables.com/FFR/SW19/HTD7SML5/FFRSW19HTD7SML5.SMALL.jpg Becca_777 Things You'll Need Bottle of soft drink 2 liters (preferably transparent or colorless) An incandescent lamp with socket ( the base of a lamp) Wire Super glue Aluminum can Needle Vellum  Cardstock  A basis for making the top of the luminaire Second Step Cut the soda bottle, using elastic a...
By: Becca_777

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Sat, 29 Mar 2014 11:55:12 PDT
A GEODESIC SPHERE MODEL http://www.instructables.com/id/A-GEODESIC-SPHERE-MODEL/
A GEODESIC SPHERE MODEL - More DIY How To Projects]]> https://cdn.instructables.com/F34/ER3V/FWBNLGFZ/F34ER3VFWBNLGFZ.SQUARE2.jpg https://cdn.instructables.com/F34/ER3V/FWBNLGFZ/F34ER3VFWBNLGFZ.SQUARE.jpg https://cdn.instructables.com/F34/ER3V/FWBNLGFZ/F34ER3VFWBNLGFZ.SMALL.jpg Thinkenstein Geodesic dome construction has interested me since the 1960s, when I first became aware of that alternative to square box architecture. Buckminster #28;"Bucky"#29; Fuller popularized the idea, but as my quick research for this instructable finds, he was not the originator. That credit apparently g...
By: Thinkenstein

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Sun, 28 Jun 2009 07:48:20 PDT
Building an Ornithopter http://www.instructables.com/id/Building-an-Ornithopter/
Building an Ornithopter - More DIY How To Projects]]> https://cdn.instructables.com/FMU/SECN/GAB5QDIE/FMUSECNGAB5QDIE.SQUARE2.jpg https://cdn.instructables.com/FMU/SECN/GAB5QDIE/FMUSECNGAB5QDIE.SQUARE.jpg https://cdn.instructables.com/FMU/SECN/GAB5QDIE/FMUSECNGAB5QDIE.SMALL.jpg 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

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Wed, 16 Jun 2010 10:14:15 PDT
Solar Boat Kit :: KidWind Project http://www.instructables.com/id/Solar-Boat-Kit-KidWind-Project/
Solar Boat Kit :: KidWind Project - More DIY How To Projects]]> https://cdn.instructables.com/FS7/T2OB/FLROLXC1/FS7T2OBFLROLXC1.SQUARE2.jpg https://cdn.instructables.com/FS7/T2OB/FLROLXC1/FS7T2OBFLROLXC1.SQUARE.jpg https://cdn.instructables.com/FS7/T2OB/FLROLXC1/FS7T2OBFLROLXC1.SMALL.gif kidwindrob This tutorial by KidWind provides details for making a solar boat for a class or hobby project.Build the best boat you can and race your friends! Solar Power Basics This boat is powered by solar panels or solar cells, which harness light energy from the sun to produce electricity. When light from...
By: kidwindrob

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Fri, 10 Oct 2008 14:46:49 PDT
The Lightning Machine: How to Build a Tesla Coil http://www.instructables.com/id/The-Lightning-Machine-How-to-Build-a-Tesla-Coil/
The Lightning Machine: How to Build a Tesla Coil - More DIY How To Projects]]> https://cdn.instructables.com/FN5/ZENI/IVMQ63CQ/FN5ZENIIVMQ63CQ.SQUARE2.jpg https://cdn.instructables.com/FN5/ZENI/IVMQ63CQ/FN5ZENIIVMQ63CQ.SQUARE.jpg https://cdn.instructables.com/FN5/ZENI/IVMQ63CQ/FN5ZENIIVMQ63CQ.SMALL.jpg tanner_tech Have you ever wanted the power to create a lightning storm in your house? Have you ever wanted to build the famous machine in the movies that creates giant sparks that jump into the air? If you have, then you are in luck! About 128 years ago, genius inventor Nikola Tesla invented a machine that ...
By: tanner_tech

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Sat, 26 Nov 2016 18:37:21 PST
3D periodic table http://www.instructables.com/id/3D-Periodic-Table/
3D periodic table - More DIY How To Projects]]> https://cdn.instructables.com/FL3/NKP6/IVO7OUIN/FL3NKP6IVO7OUIN.SQUARE2.jpg https://cdn.instructables.com/FL3/NKP6/IVO7OUIN/FL3NKP6IVO7OUIN.SQUARE.jpg https://cdn.instructables.com/FL3/NKP6/IVO7OUIN/FL3NKP6IVO7OUIN.SMALL.jpg makendo The first periodic table was developed in 1862 by a French geologist called Alexandre-Émile Béguyer de Chancourtois. He plotted the elements on a cylinder with a circumference of 16 units, and noted the resulting helix placed elements with similar properties in line with each other. But his idea - w...
By: makendo

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Mon, 28 Nov 2016 14:21:37 PST
Simple Science: Burn Steel Wool http://www.instructables.com/id/Simple-Science-Burn-Steel-Wool/
Simple Science: Burn Steel Wool - More DIY How To Projects]]> https://cdn.instructables.com/FZ6/LVN0/GGPF44JI/FZ6LVN0GGPF44JI.SQUARE2.jpg https://cdn.instructables.com/FZ6/LVN0/GGPF44JI/FZ6LVN0GGPF44JI.SQUARE.jpg https://cdn.instructables.com/FZ6/LVN0/GGPF44JI/FZ6LVN0GGPF44JI.SMALL.jpg NurdRage We demonstrate the simple combustive oxidation of iron by burning a common household item: Steel wool. Normally we do not think of iron as being flammable, this is because bulk iron doesn't self-sustain its burning like most flammable materials. But the strands of steel wool are thin enough with en...
By: NurdRage

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Thu, 25 Nov 2010 19:04:16 PST
Make an Electric Motor http://www.instructables.com/id/Make-an-Electric-Motor/
Make an Electric Motor - More DIY How To Projects]]> https://cdn.instructables.com/FYJ/YJPA/IU9V1F39/FYJYJPAIU9V1F39.SQUARE2.jpg https://cdn.instructables.com/FYJ/YJPA/IU9V1F39/FYJYJPAIU9V1F39.SQUARE.jpg https://cdn.instructables.com/FYJ/YJPA/IU9V1F39/FYJYJPAIU9V1F39.SMALL.jpg CCX191 IntroductionThis electric motor is made in reference and inspired by Roobert33's "How to make an electric motor homemade" YouTube video. This was made for a physics coursework. Although the video has already briefly explained how it works and made, here's my take. Or rather an improved version.Sugge...
By: CCX191

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Tue, 22 Nov 2016 07:31:21 PST
Hoverboard / Hovercraft http://www.instructables.com/id/Hoverboard-Hovercraft/
Hoverboard / Hovercraft - More DIY How To Projects]]> https://cdn.instructables.com/FRR/DZWW/H1LWQJ1S/FRRDZWWH1LWQJ1S.SQUARE2.jpg https://cdn.instructables.com/FRR/DZWW/H1LWQJ1S/FRRDZWWH1LWQJ1S.SQUARE.jpg https://cdn.instructables.com/FRR/DZWW/H1LWQJ1S/FRRDZWWH1LWQJ1S.SMALL.jpg Toms Workshop This was a project I did a couple of years ago at school. Who ever said coursework had to be boring! What you need: - Plywood board about 1.5 x 0.6 m (thickness can vary upon how much you're willing to spend.) - Plastic sheeting larger than your board, 1.7 x 0.8 m minimum (heavy duty plastic sheet ...
By: Toms Workshop

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Sat, 5 May 2012 10:03:11 PDT
Make a Basic Electromagnet http://www.instructables.com/id/Make-a-basic-electromagnet./
Make a Basic Electromagnet - More DIY How To Projects]]> https://cdn.instructables.com/F0F/5VOC/FBVHE7NH/F0F5VOCFBVHE7NH.SQUARE2.jpg https://cdn.instructables.com/F0F/5VOC/FBVHE7NH/F0F5VOCFBVHE7NH.SQUARE.jpg https://cdn.instructables.com/F0F/5VOC/FBVHE7NH/F0F5VOCFBVHE7NH.SMALL.jpg sacred Electromagnets are very useful tools. They have the ability to gain a magnetic field with the introduction of current and to lose it once the current ceases. We will be building a very simple one that works with these principles. It is also a very cheap project, I had everything needed to make it l...
By: sacred

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Sat, 26 Jan 2008 11:06:50 PST
How NOT to Build A Valved Pop-Pop Boat http://www.instructables.com/id/How-Not-to-Build-A-Valved-Pop-Pop-Boat/
How NOT to Build A Valved Pop-Pop Boat - More DIY How To Projects]]> https://cdn.instructables.com/F90/OE4D/GIWZLQYT/F90OE4DGIWZLQYT.SQUARE2.jpg https://cdn.instructables.com/F90/OE4D/GIWZLQYT/F90OE4DGIWZLQYT.SQUARE.jpg https://cdn.instructables.com/F90/OE4D/GIWZLQYT/F90OE4DGIWZLQYT.SMALL.jpg LetsBuildOne The Problem Pop-Pop Boats are notoriously inefficient for many reasons but the main problem is the action by which it moves forward. The  Explanation Exhaust When the engine pops it squirts water out of the exhaust. This water travels almost straight out with little divergence. Intake When the eng...
By: LetsBuildOne

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Mon, 17 Jan 2011 14:55:34 PST