How to build a hydrogen fuel generator cell from household objects. Nice as an experiment but I don’t think you’re going to be powering your car with this method.
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For all you guitar hero geeks, her is a cool mod that adds a light show as you rock out.  Funny video of some guys playing tetris on what looks like a oscilloscope. 
Flameless USB lighter uses a heating element, insted of a flame to light your cigarette. You can then push down on the heating casing and the USB dongle comes out so that you can recharge the battery powered “Zippo” shaped lighter. The lighter also has some flash memory built in so you can … read more on Flameless Rechargeable USB Lighter…  Electronic Tic-Tac-Toe demonstration. 
A streetcar that recharges itself during breaking, eliminates the overhead wires commonly found on modern streetcars. This technology could improve and eliminate some barriers from streetcar’s in modern city public transportation. The Railway Technical Research Institute in Kokubunji, Tokyo, has developed a streetcar powered by a lithium battery that can recharge in under … read more on Rechargeable Lithium Battery Powered Street Car…  This week on Systm, the guys over at Revision3 put together a motion activated silly string shooter. They used a common motion flood light to trigger the project. The project also used compressed air and a solenoid to press the silly string can. My only issue with this project, is that I … read more on DIY Motion Activated Silly String Shooter…  With a can of dog food, a blender, a blowtorch and a power drill this guy was able to spin some cotton candy. Dangerous? Yes. Delicious? Also yes. 
My project launched a payload with GPS, camera, sensors and communications to an altitude of 30km. I obtained most parts ready years ago, but only recently had time to finish it. High altitude ballooning is an emerging hobby, since price of GPS and communications equipment has gotten quite low. It is an excellent … read more on DIY High Altitude Balloon… |
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