Instructables: exploring - technology - science - popular http://www.instructables.com Mon, 21 Aug 2017 02:29:40 PDT BLOX v1.01 How to Make a Solar Eclipse Viewer - DIY Guy http://www.instructables.com/id/How-to-Make-a-Solar-Eclipse-Viewer-1/
How to Make a Solar Eclipse Viewer - DIY Guy - More DIY How To Projects]]> https://cdn.instructables.com/FQV/HSDS/J6CGD0TB/FQVHSDSJ6CGD0TB.SQUARE2.jpg https://cdn.instructables.com/FQV/HSDS/J6CGD0TB/FQVHSDSJ6CGD0TB.SQUARE.jpg https://cdn.instructables.com/FQV/HSDS/J6CGD0TB/FQVHSDSJ6CGD0TB.SMALL.jpg LowesDIYGuy A total solar eclipse is coming to the USA on Monday, August 21st! There hasn't been a total eclipse visible here since 1979, and there won't be another one until 2024.Viewing a solar eclipse with your bare eyes is super dangerous. As little as 30 seconds of cumulative exposure can cause permanent b...
By: LowesDIYGuy

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Wed, 16 Aug 2017 10:07:09 PDT
How to Make a Eyepiece for Telescope http://www.instructables.com/id/How-to-make-a-eyepiece-for-telescope/
How to Make a Eyepiece for Telescope - More DIY How To Projects]]> https://cdn.instructables.com/FM0/GKT3/FXR6ZBVC/FM0GKT3FXR6ZBVC.SQUARE2.jpg https://cdn.instructables.com/FM0/GKT3/FXR6ZBVC/FM0GKT3FXR6ZBVC.SQUARE.jpg https://cdn.instructables.com/FM0/GKT3/FXR6ZBVC/FM0GKT3FXR6ZBVC.SMALL.jpg hvegar The storybehind this project.Close to the 400 year anniversary of the observations made by Galileo, The International Year of Astronomy, a group of friends and I decided to participate in the different events, there was a proposal to make a workshop on building telescopes, there is plenty of informa...
By: hvegar

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Mon, 3 Aug 2009 07:32:42 PDT
Wireless temperature sensor http://www.instructables.com/id/Wireless-temperature-sensor/
Wireless temperature sensor - More DIY How To Projects]]> https://cdn.instructables.com/FJW/C5RT/FVMV5XDA/FJWC5RTFVMV5XDA.SQUARE2.jpg https://cdn.instructables.com/FJW/C5RT/FVMV5XDA/FJWC5RTFVMV5XDA.SQUARE.jpg https://cdn.instructables.com/FJW/C5RT/FVMV5XDA/FJWC5RTFVMV5XDA.SMALL.jpg Richaarddd Consisting of 2 circuitsOne reads the temperature using a DS18B20 and then transmitts it over the radio waves.The other receives the data and displays it.I've not fully tested the range yet, but I've had it working over 12 feet going through 2 walls.Transmitter Parts List:Picaxe 08mDS18B20 temp sens...
By: Richaarddd

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Wed, 3 Jun 2009 16:06:18 PDT
Safely Shooting the Sun With the Canon PowerShot SX530 HS http://www.instructables.com/id/Safely-Shooting-the-Sun-With-the-Canon-PowerShot-S/
Safely Shooting the Sun With the Canon PowerShot SX530 HS - More DIY How To Projects]]> https://cdn.instructables.com/F0B/OQDN/J63V20R9/F0BOQDNJ63V20R9.SQUARE2.jpg https://cdn.instructables.com/F0B/OQDN/J63V20R9/F0BOQDNJ63V20R9.SQUARE.jpg https://cdn.instructables.com/F0B/OQDN/J63V20R9/F0BOQDNJ63V20R9.SMALL.jpg ProfHankD By now, if you live in the USA, you know there's an eclipse coming August 21, 2017. Even if you're not all that excited about it, you know you're gonna watch it... and you'll probably try to photograph it.Hopefully, you already know not to stare at the Sun without protecting your eyes -- and I don'...
By: ProfHankD

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Wed, 9 Aug 2017 08:55:31 PDT
Water Bottle "Magic" Trick http://www.instructables.com/id/Water-bottle-steam/
Water Bottle "Magic" Trick - More DIY How To Projects]]> https://cdn.instructables.com/FTB/3LMX/FVHQCQDL/FTB3LMXFVHQCQDL.SQUARE2.jpg https://cdn.instructables.com/FTB/3LMX/FVHQCQDL/FTB3LMXFVHQCQDL.SQUARE.jpg https://cdn.instructables.com/FTB/3LMX/FVHQCQDL/FTB3LMXFVHQCQDL.SMALL.jpg ecorthell A great "magic" trick to show small kids or a fun way to kill time. Make steam come out of a water bottle without heating it. A simple pressure experiment that is very entertaining. Safety Warnings 1) Make sure you have safety glasses2) Have a parent/guardian present3) Do it in an open space 4)...
By: ecorthell

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Wed, 3 Jun 2009 06:59:50 PDT
Acoustic Levitator http://www.instructables.com/id/Acoustic-Levitator/
Acoustic Levitator - More DIY How To Projects]]> https://cdn.instructables.com/F5D/TYSX/J6B0OCV0/F5DTYSXJ6B0OCV0.SQUARE2.jpg https://cdn.instructables.com/F5D/TYSX/J6B0OCV0/F5DTYSXJ6B0OCV0.SQUARE.jpg https://cdn.instructables.com/F5D/TYSX/J6B0OCV0/F5DTYSXJ6B0OCV0.SMALL.jpg Asier Marzo Use acoustic waves to hold in mid-air samples such as water, ants or tiny electric components. This technology has been previously restricted to a couple of research labs but now you can make it at your home.If you want more background and details you can check our Open Access papers: More details ...
By: Asier Marzo

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Mon, 14 Aug 2017 08:06:56 PDT
How to SAFELY View the Sun to See a Solar Eclipse and Search for Sunspots. http://www.instructables.com/id/How-to-SAFELY-View-the-Sun-to-See-a-Solar-Eclipse-/
How to SAFELY View the Sun to See a Solar Eclipse and Search for Sunspots. - More DIY How To Projects]]> https://cdn.instructables.com/FAP/CDUY/J69WVY3R/FAPCDUYJ69WVY3R.SQUARE2.jpg https://cdn.instructables.com/FAP/CDUY/J69WVY3R/FAPCDUYJ69WVY3R.SQUARE.jpg https://cdn.instructables.com/FAP/CDUY/J69WVY3R/FAPCDUYJ69WVY3R.SMALL.gif More Than the Sum I am going to show you how to view the sun using several indirect viewing methods, ranging from looking at shadows on the ground, to projecting through a telescope. I have recorded a video that explains how solar projection works, and provides several different examples of how to project the sun. ...
By: More Than the Sum

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Sat, 12 Aug 2017 21:11:17 PDT
Easy Hogographic Projector http://www.instructables.com/id/Easy-Hogographic-Projector/
Easy Hogographic Projector - More DIY How To Projects]]> https://cdn.instructables.com/FAW/WBVT/ICEMT34J/FAWWBVTICEMT34J.SQUARE2.jpg https://cdn.instructables.com/FAW/WBVT/ICEMT34J/FAWWBVTICEMT34J.SQUARE.jpg https://cdn.instructables.com/FAW/WBVT/ICEMT34J/FAWWBVTICEMT34J.SMALL.jpg Saurav Chakraborty Here is an easy way to make simple holographic projector for smart mobile phone. I was inspired by the work of mikroGanesh and made this simple and modified projector. You Need: 1 Transparent sheet2 Cardboard/thick paper3 Smart Phone4 drawing tools like ruler, drawing compass, pen etc. 5 Glue and...
By: Saurav Chakraborty

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Wed, 22 Jul 2015 07:33:40 PDT
How To Build a Brain Cap (tDCS) http://www.instructables.com/id/How-To-Build-a-Brain-Cap-tDCS/
How To Build a Brain Cap (tDCS) - More DIY How To Projects]]> https://cdn.instructables.com/F49/5SNQ/HUURHU48/F495SNQHUURHU48.SQUARE2.jpg https://cdn.instructables.com/F49/5SNQ/HUURHU48/F495SNQHUURHU48.SQUARE.jpg https://cdn.instructables.com/F49/5SNQ/HUURHU48/F495SNQHUURHU48.SMALL.jpg Phage10 Overview First instructable! I hope it is good.In this instructable, I will show you how to make and use a "brain cap" a tDCS device that can be worn while it is being used. tDCS stands for transcranial direct current stimulation, a form of brain stimulation involving direct current (aka a batte...
By: Phage10

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Mon, 5 May 2014 23:46:45 PDT
Cardboard Box Eclipse Viewer http://www.instructables.com/id/Cardboard-Box-Eclipse-Viewer/
Cardboard Box Eclipse Viewer - More DIY How To Projects]]> https://cdn.instructables.com/FX9/YHD1/J5X0LBKU/FX9YHD1J5X0LBKU.SQUARE2.jpg https://cdn.instructables.com/FX9/YHD1/J5X0LBKU/FX9YHD1J5X0LBKU.SQUARE.jpg https://cdn.instructables.com/FX9/YHD1/J5X0LBKU/FX9YHD1J5X0LBKU.SMALL.jpg audreyobscura A simple and safe way to watch a solar eclipse is to use a box pinhole projector. This eclipse viewer is easy to make from a cardboard box and ordinary household items.When a solar eclipse happens, we see the moon's shadow completely blocking the sun. The sun's corona is briefly visible while the mo...
By: audreyobscura

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Fri, 4 Aug 2017 19:45:36 PDT
Beginner's Guide - AVR Programming http://www.instructables.com/id/Beginners-Guide-AVR-Programming/
Beginner's Guide - AVR Programming - More DIY How To Projects]]> https://cdn.instructables.com/FE9/O6LO/G51G679Z/FE9O6LOG51G679Z.SQUARE2.jpg https://cdn.instructables.com/FE9/O6LO/G51G679Z/FE9O6LOG51G679Z.SQUARE.jpg https://cdn.instructables.com/FE9/O6LO/G51G679Z/FE9O6LOG51G679Z.SMALL.jpg cl97 You will get this done in 30 min. Parts 1. 1 X  any type of circuit board 2. 1 X Atmel AVR Atmega16 microcontroller 3. 8 X 330 ohms Resistors 4. 8 X LEDs 5. 1 X AVR Programmer (just use for download the code, i used a STK500) Build the circuit It's very simple, just follow the diagram that i...
By: cl97

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Wed, 3 Feb 2010 09:33:27 PST
How to make a bouncy egg. http://www.instructables.com/id/How-to-make-a-bouncy-egg/
How to make a bouncy egg. - More DIY How To Projects]]> https://cdn.instructables.com/FNX/RHC4/GM552BFM/FNXRHC4GM552BFM.SQUARE2.jpg https://cdn.instructables.com/FNX/RHC4/GM552BFM/FNXRHC4GM552BFM.SQUARE.jpg https://cdn.instructables.com/FNX/RHC4/GM552BFM/FNXRHC4GM552BFM.SMALL.jpg futureventions this will egg-splain (pardon the pun) to you how to easily make a bouncy egg using... an egg! this is very simple and easy to do! A friend showed me how to do this so I'm doing this on his behalf. Preparing the egg Leave it, you need to do nothing to the egg at this point. Preparing the equ...
By: futureventions

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Tue, 5 Apr 2011 11:53:46 PDT
Levitation of Homopolar Motor http://www.instructables.com/id/Levitation-of-Homopolar-Motor/
Levitation of Homopolar Motor - More DIY How To Projects]]> https://cdn.instructables.com/FPD/N7CB/IJN55A73/FPDN7CBIJN55A73.SQUARE2.jpg https://cdn.instructables.com/FPD/N7CB/IJN55A73/FPDN7CBIJN55A73.SQUARE.jpg https://cdn.instructables.com/FPD/N7CB/IJN55A73/FPDN7CBIJN55A73.SMALL.jpg Magnetic Games Difficulty of realization 8/10 Levitation of Homopolar Motor I joined the homopolar motor experiment with the pencil levitation experiment ... and this is the result. I think it is an original work, you have seen one like it around on web? It is similar to the experiment of the Mendocino motor, b...
By: Magnetic Games

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Wed, 20 Jan 2016 07:19:19 PST
Make Silver Different Colors by Anodizing http://www.instructables.com/id/Make-Silver-Different-Colors-by-Anodizing/
Make Silver Different Colors by Anodizing - More DIY How To Projects]]> https://cdn.instructables.com/FQB/WNBT/FRTXG3B8/FQBWNBTFRTXG3B8.SQUARE2.jpg https://cdn.instructables.com/FQB/WNBT/FRTXG3B8/FQBWNBTFRTXG3B8.SQUARE.jpg https://cdn.instructables.com/FQB/WNBT/FRTXG3B8/FQBWNBTFRTXG3B8.SMALL.jpg NurdRage How to Make Silver Different Colors by Electrochemical Anodizing.Without using paint you can give a silver surface various colors by anodizing it. WARNING: Anodizing solution is corrosive, so wear gloves at all times when working with it. It is also somewhat toxic, so keep it away from children and ...
By: NurdRage

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Mon, 2 Mar 2009 20:39:12 PST
Sending Weather Balloon to Space with a Camera http://www.instructables.com/id/Sending-Weather-Balloon-to-Space-with-a-Camera/
Sending Weather Balloon to Space with a Camera - More DIY How To Projects]]> https://cdn.instructables.com/F4X/JKLQ/I9BN9TLI/F4XJKLQI9BN9TLI.SQUARE2.jpg https://cdn.instructables.com/F4X/JKLQ/I9BN9TLI/F4XJKLQI9BN9TLI.SQUARE.jpg https://cdn.instructables.com/F4X/JKLQ/I9BN9TLI/F4XJKLQI9BN9TLI.SMALL.jpg GrantS6 We have both been very interested in space for quite some time, and we have seen many amazing photos of the universe around us. Seeing these photos we have both wondered if we could ever get a picture of space ourselves. When the DIY (Do It Yourself) project came along this year, both Grant and i ...
By: GrantS6

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Tue, 5 May 2015 17:18:59 PDT
The $1 Pocket Microscope - Explore the World Around You at 80x and 140x! http://www.instructables.com/id/The-1-Pocket-Microscope-Explore-the-World-Around-Y/
The $1 Pocket Microscope - Explore the World Around You at 80x and 140x! - More DIY How To Projects]]> https://cdn.instructables.com/FW3/JMC3/J5CQ2471/FW3JMC3J5CQ2471.SQUARE2.jpg https://cdn.instructables.com/FW3/JMC3/J5CQ2471/FW3JMC3J5CQ2471.SQUARE.jpg https://cdn.instructables.com/FW3/JMC3/J5CQ2471/FW3JMC3J5CQ2471.SMALL.jpg anisotropy Microscopes let you explore the world around you at a small scale. With this $1 3D printed microscope, you can see tiny things in amazing detail! Looking at insects, plants, and even dirt close up can be fascinating. I've already seen firsthand how impactful inexpensive tools for scientific explorat...
By: anisotropy

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Thu, 20 Jul 2017 18:37:38 PDT
Make a Temporary Magnet http://www.instructables.com/id/Make-a-Temporary-Magnet/
Make a Temporary Magnet - More DIY How To Projects]]> https://cdn.instructables.com/F0V/BMYH/LSFERIE31F3/F0VBMYHLSFERIE31F3.SQUARE2.jpg https://cdn.instructables.com/F0V/BMYH/LSFERIE31F3/F0VBMYHLSFERIE31F3.SQUARE.jpg https://cdn.instructables.com/F0V/BMYH/LSFERIE31F3/F0VBMYHLSFERIE31F3.SMALL.jpg FrenchCrawler I learned this from my dad when I was a little kid, but I searched instructables and found that no one has posted it, so here it is. I'm actually kind of shocked that no one has posted this yet. I'd like to apologize for my last instructable to those of you saw it before I deleted it. Also to Tetra...
By: FrenchCrawler

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Thu, 7 Sep 2006 10:22:29 PDT
Generator Demonstration from Cordless Drill http://www.instructables.com/id/Generator-Demonstration-from-Cordless-Drill/
Generator Demonstration from Cordless Drill - More DIY How To Projects]]> https://cdn.instructables.com/FYA/X5T8/GAPURQY2/FYAX5T8GAPURQY2.SQUARE2.jpg https://cdn.instructables.com/FYA/X5T8/GAPURQY2/FYAX5T8GAPURQY2.SQUARE.jpg https://cdn.instructables.com/FYA/X5T8/GAPURQY2/FYAX5T8GAPURQY2.SMALL.jpg Jack A Lopez This instructable will show you how to make a crude, but sturdy, hand cranked generator, capable of supplying  just a few watts of unregulated DC, at a potential of a few volts or so.  This generator is suitable for classroom demonstrations, science projects, lending credence to the legend that a mo...
By: Jack A Lopez

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Thu, 24 Jun 2010 23:49:03 PDT
How to ready your Uncle Milton ant farm http://www.instructables.com/id/How-to-ready-your-Uncle-Milton-ant-farm/
How to ready your Uncle Milton ant farm - More DIY How To Projects]]> https://cdn.instructables.com/FLA/F9V3/FWBNNV1R/FLAF9V3FWBNNV1R.SQUARE2.jpg https://cdn.instructables.com/FLA/F9V3/FWBNNV1R/FLAF9V3FWBNNV1R.SQUARE.jpg https://cdn.instructables.com/FLA/F9V3/FWBNNV1R/FLAF9V3FWBNNV1R.SMALL.jpg kalamistix May be easy, may be not, but I'm gonna show you my detailed description of getting your ant farm ready. So, I got this ant farm for Christmas, but I couldn't get any ants until May through June so I had sent for them around the end of May and finally got them on June 22 (they didn't cash the check ...
By: kalamistix

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Wed, 24 Jun 2009 10:46:47 PDT
Harvesting Sound Energy From Passing Cars http://www.instructables.com/id/Harvesting-Sound-Energy-From-Passing-Cars/
Harvesting Sound Energy From Passing Cars - More DIY How To Projects]]> https://cdn.instructables.com/FWE/S0LN/J58FOZMC/FWES0LNJ58FOZMC.SQUARE2.jpg https://cdn.instructables.com/FWE/S0LN/J58FOZMC/FWES0LNJ58FOZMC.SQUARE.jpg https://cdn.instructables.com/FWE/S0LN/J58FOZMC/FWES0LNJ58FOZMC.SMALL.jpg Mechanical Attraction There is energy everywhere around us and in many different forms. Many devices have been developed to harvest light, wind, waves, and more. One unusual place of energy harvesting is from passing cars. As cars pass by some of their energy is released in form of sound. Even though the overall energy m...
By: Mechanical Attraction

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Mon, 17 Jul 2017 17:24:30 PDT
LUMOS: Smart Lamp for Better Sleep http://www.instructables.com/id/LUMOS-Smart-Lamp-for-Better-Health/
LUMOS: Smart Lamp for Better Sleep - More DIY How To Projects]]> https://cdn.instructables.com/FAZ/XTTP/J5CQB7EK/FAZXTTPJ5CQB7EK.SQUARE2.jpg https://cdn.instructables.com/FAZ/XTTP/J5CQB7EK/FAZXTTPJ5CQB7EK.SQUARE.jpg https://cdn.instructables.com/FAZ/XTTP/J5CQB7EK/FAZXTTPJ5CQB7EK.SMALL.jpg Jonathanrjpereira There are plenty of smart lighting systems out there that let you change light colors and dim with just your smartphone (or even your voice), but this Open Source lamp called Lumos is a smart lighting system that works to benefit your health.Lumos mimics the natural light of the sun as it passes ove...
By: Jonathanrjpereira

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Sun, 23 Jul 2017 04:54:16 PDT
Make Bismuth Crystals In The Kitchen http://www.instructables.com/id/Make-Bismuth-Crystals-In-The-Kitchen/
Make Bismuth Crystals In The Kitchen - More DIY How To Projects]]> https://cdn.instructables.com/FQR/VR4S/I7VQLJGX/FQRVR4SI7VQLJGX.SQUARE2.jpg https://cdn.instructables.com/FQR/VR4S/I7VQLJGX/FQRVR4SI7VQLJGX.SQUARE.jpg https://cdn.instructables.com/FQR/VR4S/I7VQLJGX/FQRVR4SI7VQLJGX.SMALL.jpg NightHawkInLight Bismuth is non-toxic, at least, it is not bio accumulative so you would need to consume a whole lot at one time to have issue. The bismuth compound bismuth subsalicylate is the active ingredient in Pepto Bismol. It is the most highly diamagnetic element known, and is slightly radioactive with a half...
By: NightHawkInLight

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Mon, 30 Mar 2015 09:27:42 PDT
A Strong Simple Sun Tracker http://www.instructables.com/id/A-Strong-Simple-Sun-Tracker/
A Strong Simple Sun Tracker - More DIY How To Projects]]> https://cdn.instructables.com/F6P/OAG1/FKLD2LGA/F6POAG1FKLD2LGA.SQUARE2.jpg https://cdn.instructables.com/F6P/OAG1/FKLD2LGA/F6POAG1FKLD2LGA.SQUARE.jpg https://cdn.instructables.com/F6P/OAG1/FKLD2LGA/F6POAG1FKLD2LGA.SMALL.jpg Mud Stuffin Build a big array of mirrors for a solar collector and you still have one problem, it has to follow the sun as it travels across the sky. Solar trackers are expensive and complicated. Heres one that is simple, cheap and strong. You can make it from parts found in the hardware store and garage sale...
By: Mud Stuffin

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Wed, 3 Sep 2008 15:10:49 PDT
Build a Pendulum Seismometer for under $15 http://www.instructables.com/id/Build-a-Pendulum-Seismometer-for-under-15/
Build a Pendulum Seismometer for under $15 - More DIY How To Projects]]> https://cdn.instructables.com/FEJ/THNX/H673DZLJ/FEJTHNXH673DZLJ.SQUARE2.jpg https://cdn.instructables.com/FEJ/THNX/H673DZLJ/FEJTHNXH673DZLJ.SQUARE.jpg https://cdn.instructables.com/FEJ/THNX/H673DZLJ/FEJTHNXH673DZLJ.SMALL.jpg bikeframe Instructables is such a super source of information! A while back I was looking for ideas for a seismometer I wanted to build and ran across the IBLs that used a piezo element from a $1 intruder alarm as a microphone. There was my seismometer transducer. What a deal for a buck! A seismometer is a s...
By: bikeframe

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Thu, 30 Aug 2012 14:36:28 PDT
"Elephant Toothpaste" with Potassium permanganate and Hydrogen peroxide http://www.instructables.com/id/quotElephant-Toothpastequot-with-Potassium-per/
"Elephant Toothpaste" with Potassium permanganate and Hydrogen peroxide - More DIY How To Projects]]> https://cdn.instructables.com/FUA/60JC/FZNHOMJ8/FUA60JCFZNHOMJ8.SQUARE2.jpg https://cdn.instructables.com/FUA/60JC/FZNHOMJ8/FUA60JCFZNHOMJ8.SQUARE.jpg https://cdn.instructables.com/FUA/60JC/FZNHOMJ8/FUA60JCFZNHOMJ8.SMALL.jpg cforchemistry It is a experiment similar to Experiment #2, decomposition of Hydrogen peroxide generate Oxygen, which turns detergent into foam. It is so called "Elephant Toothpaste" because the foam is so much, and come out from beaker just like squeezing out toothpaste.Please rate, comment and subscribe for more...
By: cforchemistry

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Wed, 16 Sep 2009 07:04:37 PDT
Do It Yourself Lab Ware http://www.instructables.com/id/Do-It-Yourself-Lab-Ware/
Do It Yourself Lab Ware - More DIY How To Projects]]> https://cdn.instructables.com/F3I/HOK1/HOUFPZBV/F3IHOK1HOUFPZBV.SQUARE2.jpg https://cdn.instructables.com/F3I/HOK1/HOUFPZBV/F3IHOK1HOUFPZBV.SQUARE.jpg https://cdn.instructables.com/F3I/HOK1/HOUFPZBV/F3IHOK1HOUFPZBV.SMALL.jpg KRA5H This DIY lab ware Instructable was written for Tekla Labs, whose "mission is to empower scientists all over the world to build their own research infrastructure." These DIY lab ware are from a series of articles I've written for my column The Square Root of Not (http://www.science20.com/square_root_...
By: KRA5H

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Thu, 12 Dec 2013 09:24:36 PST
Hybrid Rocket Engine http://www.instructables.com/id/Hybrid-Rocket-Engine/
Hybrid Rocket Engine - More DIY How To Projects]]> https://cdn.instructables.com/F7N/P294/J4YFP24F/F7NP294J4YFP24F.SQUARE2.jpg https://cdn.instructables.com/F7N/P294/J4YFP24F/F7NP294J4YFP24F.SQUARE.jpg https://cdn.instructables.com/F7N/P294/J4YFP24F/F7NP294J4YFP24F.SMALL.jpg LabRatMatt Rockets are awesome. This is an undeniable truth.Many years ago, when I first discovered model rockets, they captivated me. Those little gunpowder engines had just enough thrust to make a painted cardboard tube soar hundreds of feet in the air. In this instructable, we will build a slightly more ...
By: LabRatMatt

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Tue, 11 Jul 2017 08:10:00 PDT
Simple FM radio (sure works!) http://www.instructables.com/id/Simple-FM-Radio-sure-Works/
Simple FM radio (sure works!) - More DIY How To Projects]]> https://cdn.instructables.com/FTB/ZHST/ITQ34HUK/FTBZHSTITQ34HUK.SQUARE2.jpg https://cdn.instructables.com/FTB/ZHST/ITQ34HUK/FTBZHSTITQ34HUK.SQUARE.jpg https://cdn.instructables.com/FTB/ZHST/ITQ34HUK/FTBZHSTITQ34HUK.SMALL.jpg mkpeker Simple and powerful fm radio with easy to find parts circuit This is a regenerative Fm radio. Build very simple and easy to find parts. No special coils or uhf transistors.Antenna catches fm waves, first transistor works as oscillator. R1, L1 and C1 determinates oscillation frequency. Internal fr...
By: mkpeker

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Sun, 2 Oct 2016 03:57:32 PDT
RotoVerter http://www.instructables.com/id/RotoVerter/
RotoVerter - More DIY How To Projects]]> https://cdn.instructables.com/FLD/J8JI/H8CVG6HN/FLDJ8JIH8CVG6HN.SQUARE2.jpg https://cdn.instructables.com/FLD/J8JI/H8CVG6HN/FLDJ8JIH8CVG6HN.SQUARE.jpg https://cdn.instructables.com/FLD/J8JI/H8CVG6HN/FLDJ8JIH8CVG6HN.SMALL.jpg Heer_Lorcan Thought it would be nice to have at least 1 way of making electricity with all these projects here. So, after a few years at the EVGRAY group, wanted to post this at instructables. The idea it to use 2 electromotors to create electricity. The Prime mover, tuned to use a low Amp, and the mechanical w...
By: Heer_Lorcan

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Mon, 22 Oct 2012 16:59:38 PDT
Make a Microbial Fuel Cell (MFC) - Part II http://www.instructables.com/id/Make-a-Microbial-Fuel-Cell-MFC-Part-II/
Make a Microbial Fuel Cell (MFC) - Part II - More DIY How To Projects]]> https://cdn.instructables.com/F9W/KELT/FVW1UJ50/F9WKELTFVW1UJ50.SQUARE2.jpg https://cdn.instructables.com/F9W/KELT/FVW1UJ50/F9WKELTFVW1UJ50.SQUARE.jpg https://cdn.instructables.com/F9W/KELT/FVW1UJ50/F9WKELTFVW1UJ50.SMALL.jpg egbertfitzwilly This instructable provides detailed directions for building your own microbial fuel cell using Jello, Saltwater and Septic Tank treatment. It's based on the information provided in Make a Microbial Fuel Cell (MFC) - Part 1This is a true fuel cell in that both the anaerobic and electrolyte media are...
By: egbertfitzwilly

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Sat, 13 Jun 2009 19:27:10 PDT
How To Make Graphene Oxide http://www.instructables.com/id/How-To-Make-Graphene-Oxide/
How To Make Graphene Oxide - More DIY How To Projects]]> https://cdn.instructables.com/FIB/MK8F/HX1WCE6D/FIBMK8FHX1WCE6D.SQUARE2.jpg https://cdn.instructables.com/FIB/MK8F/HX1WCE6D/FIBMK8FHX1WCE6D.SQUARE.jpg https://cdn.instructables.com/FIB/MK8F/HX1WCE6D/FIBMK8FHX1WCE6D.SMALL.jpg rsmith78910 Graphene has become one of the most important materials ofthe 21st century and there exists a huge variety of methods for making it. Quite a few of these are well out of the reach of the average small lab, independent researcher, inventor and experimenter. However many of them are quite approachable...
By: rsmith78910

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Tue, 1 Jul 2014 07:20:21 PDT
SIMPLE BUT PROFESSIONAL TELESCOPE FOR BEGINNER ASTRONOMERS http://www.instructables.com/id/SIMPLE-BUT-PROFESSIONAL-TELESCOPE-FOR-BEGINNER-AST/
SIMPLE BUT PROFESSIONAL TELESCOPE FOR BEGINNER ASTRONOMERS - More DIY How To Projects]]> https://cdn.instructables.com/F44/XFOS/II3F07AG/F44XFOSII3F07AG.SQUARE2.jpg https://cdn.instructables.com/F44/XFOS/II3F07AG/F44XFOSII3F07AG.SQUARE.jpg https://cdn.instructables.com/F44/XFOS/II3F07AG/F44XFOSII3F07AG.SMALL.jpg BigCthulhu SIMPLE BUT PROFESSIONAL TELESCOPE FOR BEGINNER ASTRONOMERSHere is a really good, and very cheap DIY-telescope for beginner astronomers. The budget is under 15 euros (or 16 $), you only have to spend a small money for the lenses, but this means that the image of your tiny scope will be an excellent, ...
By: BigCthulhu

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Mon, 27 Apr 2015 12:16:10 PDT
Make a Bump Key! http://www.instructables.com/id/Make-a-Bump-Key/
Make a Bump Key! - More DIY How To Projects]]> https://cdn.instructables.com/F5Z/7WFR/HK483PM9/F5Z7WFRHK483PM9.SQUARE2.jpg https://cdn.instructables.com/F5Z/7WFR/HK483PM9/F5Z7WFRHK483PM9.SQUARE.jpg https://cdn.instructables.com/F5Z/7WFR/HK483PM9/F5Z7WFRHK483PM9.SMALL.jpg rickosgood In this video I'll show you how you can make your own bump key using just a triangle file and a key blank!  You can use a bump key to open almost any lock that the key is designed to fit.  Be careful though... you can damage a lock this way!
By: rickosgood

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Tue, 13 Aug 2013 08:32:11 PDT
Make A Breadboard Power Supply http://www.instructables.com/id/Make-A-Breadboard-Power-Supply/
Make A Breadboard Power Supply - More DIY How To Projects]]> https://cdn.instructables.com/FZ4/4WQI/FN84QXZO/FZ44WQIFN84QXZO.SQUARE2.jpg https://cdn.instructables.com/FZ4/4WQI/FN84QXZO/FZ44WQIFN84QXZO.SQUARE.jpg https://cdn.instructables.com/FZ4/4WQI/FN84QXZO/FZ44WQIFN84QXZO.SMALL.jpg Nerdz This was a weekend project that I did so I can use a breadboard and get power to it. Some of my projects involve using 5V for a logic supply, while for others I may need a higher voltage. In this instructable I'll show how you can use a fixed voltage regulator as a adjustable one. The advantage of t...
By: Nerdz

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Thu, 6 Nov 2008 22:11:39 PST
Mental Math: Digital Root Extraction http://www.instructables.com/id/Mental-Math-Digital-Root-Extraction/
Mental Math: Digital Root Extraction - More DIY How To Projects]]> https://cdn.instructables.com/FEA/ZB3W/FMMD0HTY/FEAZB3WFMMD0HTY.SQUARE2.jpg https://cdn.instructables.com/FEA/ZB3W/FMMD0HTY/FEAZB3WFMMD0HTY.SQUARE.jpg https://cdn.instructables.com/FEA/ZB3W/FMMD0HTY/FEAZB3WFMMD0HTY.SMALL.gif purduecer Continuing in the tradition of my first 2 Instructables, I present to the interested reader a new mental math technique today. This trick, like the first 2 tricks, is for most intents and purposes simply a parlor trick to astound and amaze your fellow geeks at your next math club meeting. That said...
By: purduecer

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Thu, 23 Oct 2008 09:56:37 PDT
Simple reciprocating pump http://www.instructables.com/id/Simple-reciprocating-pump/
Simple reciprocating pump - More DIY How To Projects]]> https://cdn.instructables.com/FE3/FUQ0/GW3XH7MR/FE3FUQ0GW3XH7MR.SQUARE2.jpg https://cdn.instructables.com/FE3/FUQ0/GW3XH7MR/FE3FUQ0GW3XH7MR.SQUARE.jpg https://cdn.instructables.com/FE3/FUQ0/GW3XH7MR/FE3FUQ0GW3XH7MR.SMALL.gif ganuganu In this instructable iam going to explain you haw to make a reciprocating pump in a very simple way. This is not much efficient but useful to understand the working and parts of a reciprocating pump. Before going into the make let us know what is a reciprocating pump and its working.  Reciprocating...
By: ganuganu

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Tue, 13 Dec 2011 23:36:41 PST
Calculating a Hohmann Transfer http://www.instructables.com/id/Calculating-a-Hohmann-Transfer/
Calculating a Hohmann Transfer - More DIY How To Projects]]> https://cdn.instructables.com/FP2/BSV5/IJM02B9U/FP2BSV5IJM02B9U.SQUARE2.jpg https://cdn.instructables.com/FP2/BSV5/IJM02B9U/FP2BSV5IJM02B9U.SQUARE.jpg https://cdn.instructables.com/FP2/BSV5/IJM02B9U/FP2BSV5IJM02B9U.SMALL.gif rkatch A Hohmann Transfer is a very common orbital maneuver used by astrophysicists to send a spacecraft from a small circular orbit to a larger one. In this Instructable I will walk you, step by step, through calculating the Hohmann Transfer for sending a spacecraft from Earth to Mars. Gather supplies ...
By: rkatch

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Wed, 20 Jan 2016 07:43:31 PST
Hologram from LCD Projector http://www.instructables.com/id/Hologram-from-LCD-Projector/
Hologram from LCD Projector - More DIY How To Projects]]> https://cdn.instructables.com/FV1/UXCL/HCAYD5ZG/FV1UXCLHCAYD5ZG.SQUARE2.jpg https://cdn.instructables.com/FV1/UXCL/HCAYD5ZG/FV1UXCLHCAYD5ZG.SQUARE.jpg https://cdn.instructables.com/FV1/UXCL/HCAYD5ZG/FV1UXCLHCAYD5ZG.SMALL.jpg Baybren Hologram from LCD Projector This equipment allows you to project a (very low resolution) hologram from an ordinary projector. I had seen a video on how to do this kind of thing somewhere, so I modified it some and it actually worked! It does still need improvement, though - the image can still be se...
By: Baybren

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Tue, 22 Jan 2013 14:08:17 PST
Ferrocell, Magnetic Fields Viewer http://www.instructables.com/id/Ferrocell-Magnetic-Fields-Viewer/
Ferrocell, Magnetic Fields Viewer - More DIY How To Projects]]> https://cdn.instructables.com/FPY/VSYJ/J3EPPCLL/FPYVSYJJ3EPPCLL.SQUARE2.jpg https://cdn.instructables.com/FPY/VSYJ/J3EPPCLL/FPYVSYJJ3EPPCLL.SQUARE.jpg https://cdn.instructables.com/FPY/VSYJ/J3EPPCLL/FPYVSYJJ3EPPCLL.SMALL.jpg Magnetic Games Difficulty of realization 7/10 How to work This is the best magnetic field viewer I've ever seen. The field lines are displayed with clarity like no other device or trick you can do.Apply light and magnetism to either surface. Polarization of the applied magnetic field will determine the "angle o...
By: Magnetic Games

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Sat, 3 Jun 2017 09:25:58 PDT
DIY Cathode Ray Tube: Interacting With Electrons http://www.instructables.com/id/DIY-Cathode-Ray-Tube-Interacting-With-Electrons/
DIY Cathode Ray Tube: Interacting With Electrons - More DIY How To Projects]]> https://cdn.instructables.com/FPE/YT3W/J3EPNAK6/FPEYT3WJ3EPNAK6.SQUARE2.jpg https://cdn.instructables.com/FPE/YT3W/J3EPNAK6/FPEYT3WJ3EPNAK6.SQUARE.jpg https://cdn.instructables.com/FPE/YT3W/J3EPNAK6/FPEYT3WJ3EPNAK6.SMALL.jpg tanner_tech Electrons: they are all around us, but we cannot really see or interact with them. Luckily, there is a device that will let you. A cathode ray tube, or CRT, is a glass tube with electrodes on either end. When there is a vacuum drawn and a high voltage across the two electrodes, a cathode ray form...
By: tanner_tech

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Fri, 2 Jun 2017 09:47:56 PDT
Send a camera to Space http://www.instructables.com/id/Send-a-camera-to-Space/
Send a camera to Space - More DIY How To Projects]]> https://cdn.instructables.com/FVR/FLXJ/HX5H5RK4/FVRFLXJHX5H5RK4.SQUARE2.jpg https://cdn.instructables.com/FVR/FLXJ/HX5H5RK4/FVRFLXJHX5H5RK4.SQUARE.jpg https://cdn.instructables.com/FVR/FLXJ/HX5H5RK4/FVRFLXJHX5H5RK4.SMALL.jpg jgall2 Sending a camera to space is very simple, and if done correctly, the outcome is outstanding. It involves using a high altitude weather balloon 1200g, which holds the payload and films/ takes photos from space. I myself have done this project, and my video can be seen here. http://m.youtube.com/watch...
By: jgall2

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Thu, 3 Jul 2014 03:48:05 PDT
Build a working fusion reactor model: the real life Arc Reactor http://www.instructables.com/id/Real-Life-Arc-Reactor-a-Working-Fusion-Reactor-Mod/
Build a working fusion reactor model: the real life Arc Reactor - More DIY How To Projects]]> https://cdn.instructables.com/FPD/LW4R/IYUFYTEV/FPDLW4RIYUFYTEV.SQUARE2.jpg https://cdn.instructables.com/FPD/LW4R/IYUFYTEV/FPDLW4RIYUFYTEV.SQUARE.jpg https://cdn.instructables.com/FPD/LW4R/IYUFYTEV/FPDLW4RIYUFYTEV.SMALL.jpg Vitorbnc I've always been fascinated by fusion: cool looking devices that hold the promise of one day providing green power to each one of us, while glowing like the one in Iron Man's suit. So, I started building models of them, precisely of the Fansworth IEC (Inertial Confinement Fusion) kind. The fancy nam...
By: Vitorbnc

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Mon, 6 Feb 2017 16:54:50 PST
How to Set-up Gibson Ridge Level 2 Analyst Radar Software http://www.instructables.com/id/How-to-Set-up-Gibson-Ridge-Level-2-Analyst-Radar-S/
How to Set-up Gibson Ridge Level 2 Analyst Radar Software - More DIY How To Projects]]> https://cdn.instructables.com/F4H/8NSA/GBB7GCW9/F4H8NSAGBB7GCW9.SQUARE2.jpg https://cdn.instructables.com/F4H/8NSA/GBB7GCW9/F4H8NSAGBB7GCW9.SQUARE.jpg https://cdn.instructables.com/F4H/8NSA/GBB7GCW9/F4H8NSAGBB7GCW9.SMALL.jpg cyclonewxchick With the popularity of storm-chasing and interests in severe weather on the rise, more people have the ability to access more weather information faster than ever before with more details available to them. Gibson Ridge is one of the leading radar software brands that make radar data available to th...
By: cyclonewxchick

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Thu, 8 Jul 2010 20:21:21 PDT
Simple Ebb and Flow Hydroponic System http://www.instructables.com/id/Simple-Ebb-and-Flow-Hydroponic-System/
Simple Ebb and Flow Hydroponic System - More DIY How To Projects]]> https://cdn.instructables.com/FS9/BVG5/FX8OUD40/FS9BVG5FX8OUD40.SQUARE2.jpg https://cdn.instructables.com/FS9/BVG5/FX8OUD40/FS9BVG5FX8OUD40.SQUARE.jpg https://cdn.instructables.com/FS9/BVG5/FX8OUD40/FS9BVG5FX8OUD40.SMALL.jpg Gabriel M. This instructable will show you how to build a simple ebb and flow hydroponic system. Out of the many different designs I have tried in the past, the ebb and flow has worked the best for me.I have successfully grown smaller plants like lettuce and spinach as well as larger plants like zucchini and t...
By: Gabriel M.

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Sun, 19 Jul 2009 15:18:41 PDT
How to Make Solenoid Engine http://www.instructables.com/id/How-to-Make-Solenoid-Engine/
How to Make Solenoid Engine - More DIY How To Projects]]> https://cdn.instructables.com/F46/KRP2/IVO3OFXH/F46KRP2IVO3OFXH.SQUARE2.jpg https://cdn.instructables.com/F46/KRP2/IVO3OFXH/F46KRP2IVO3OFXH.SQUARE.jpg https://cdn.instructables.com/F46/KRP2/IVO3OFXH/F46KRP2IVO3OFXH.SMALL.jpg Mr innovative Hi friendsthis time i will show you how to make a simple solenoid engine.It is very fascinating to see how physics works, with this project we will see how magnetism works to rotate a wheel,here linear movement of solenoid is convert into circular motion. Video of Solenoid Engine First please h...
By: Mr innovative

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Tue, 22 Nov 2016 09:09:19 PST
NASA Image of the Day As Your Desktop! http://www.instructables.com/id/NASA-Image-of-the-Day-As-Your-Desktop/
NASA Image of the Day As Your Desktop! - More DIY How To Projects]]> https://cdn.instructables.com/FDD/M5J5/J2UPBSRX/FDDM5J5J2UPBSRX.SQUARE2.jpg https://cdn.instructables.com/FDD/M5J5/J2UPBSRX/FDDM5J5J2UPBSRX.SQUARE.jpg https://cdn.instructables.com/FDD/M5J5/J2UPBSRX/FDDM5J5J2UPBSRX.SMALL.jpg Steele Maker Hello everyone! Welcome to my first instructable. In this instructable I will show you how to make a program that changes your computer’s desktop to the most recent NASA Image of the Day. These images are always stunning and the program really adds to your desktop appearance.The NASA Image of the Da...
By: Steele Maker

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Fri, 19 May 2017 21:44:58 PDT
Schlieren Imaging: How to see air flow! http://www.instructables.com/id/Schlieren-Imaging-How-to-see-air-flow/
Schlieren Imaging: How to see air flow! - More DIY How To Projects]]> https://cdn.instructables.com/FDK/IYTT/IHF8RALF/FDKIYTTIHF8RALF.SQUARE2.jpg https://cdn.instructables.com/FDK/IYTT/IHF8RALF/FDKIYTTIHF8RALF.SQUARE.jpg https://cdn.instructables.com/FDK/IYTT/IHF8RALF/FDKIYTTIHF8RALF.SMALL.jpg Bryan Rolfe This project documents the construction, science, and application of a Schlieren aparatus. In short, a Schlieren system leverages the principal of refraction, and some clever optics to allow for the visualization of differences in density of transparent media. I also made a video for this project th...
By: Bryan Rolfe

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Wed, 25 Nov 2015 15:50:57 PST
How to Repair a Cracked or Broken Circuit Board http://www.instructables.com/id/How-to-Repair-a-Cracked-or-Broken-Circuit-Board/
How to Repair a Cracked or Broken Circuit Board - More DIY How To Projects]]> https://cdn.instructables.com/F0D/GHWQ/FPBKYOME/F0DGHWQFPBKYOME.SQUARE2.jpg https://cdn.instructables.com/F0D/GHWQ/FPBKYOME/F0DGHWQFPBKYOME.SQUARE.jpg https://cdn.instructables.com/F0D/GHWQ/FPBKYOME/F0DGHWQFPBKYOME.SMALL.jpg The Lightning Stalker Step by step guide to repairing circuit boards Yes, I know, my hands are shaky. I didn't say it in the video, but the epoxy doesn't have to be Super Glue brand. There are several different brands of 2 part plastic bonder epoxy. Any of them will do. Of course make sure the power is removed and all ca...
By: The Lightning Stalker

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Fri, 2 Jan 2009 02:20:09 PST
BiPed robot V-3 http://www.instructables.com/id/BiPed-robot-V-3/
BiPed robot V-3 - More DIY How To Projects]]> https://cdn.instructables.com/FUH/GKO6/FIHVM223/FUHGKO6FIHVM223.SQUARE2.jpg https://cdn.instructables.com/FUH/GKO6/FIHVM223/FUHGKO6FIHVM223.SQUARE.jpg https://cdn.instructables.com/FUH/GKO6/FIHVM223/FUHGKO6FIHVM223.SMALL.jpg alex.v The BiPed robot V-3 was designed to get as close to the freedom of movement of the human lower body, it has 12 degrees of freedom. The frame is made of acryl-sheets and model servos are used as actuators. For now the robot is controlled via PC, autonomous behaviour when development finished. The so...
By: alex.v

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Fri, 11 Jul 2008 14:46:55 PDT
Easy Elephants Toothpaste Experiment http://www.instructables.com/id/Easy-Elephants-Toothpaste-Experiment-1/
Easy Elephants Toothpaste Experiment - More DIY How To Projects]]> https://cdn.instructables.com/FTP/FUEN/FS8O27F5/FTPFUENFS8O27F5.SQUARE2.jpg https://cdn.instructables.com/FTP/FUEN/FS8O27F5/FTPFUENFS8O27F5.SQUARE.jpg https://cdn.instructables.com/FTP/FUEN/FS8O27F5/FTPFUENFS8O27F5.SMALL.jpg sciencebob.com Fun With FoamFoam is fun! Check out this video to see our Fantastic Foamy Fountain in action. The experiment uses Hydrogen peroxide and dry yeast. Hydrogen peroxide is similar to water but it has an extra oxygen atom. This makes it more dangerous and only adults should handle the hydrogen peroxide.W...
By: sciencebob.com

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Fri, 13 Mar 2009 11:10:20 PDT