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Ben Heck builds hand-crank chargers for Android phones, continues work on his new pinball machines and brings an LCD back from the dead.

Here is a big LED POV from www.ledcontrol.narod.ru Posted by www.BricoGeek.com

DIY: How to make a USB-Solar Rechargeable Light & Mobile Charger Note: A link of PDF Map and pictures of this project would be available soon here for free download and use. A Samimy Production January 15th-2011 My Other Projects: www.youtube.com/SAMIMYS Subscribe to watch my upcoming projects quickly. Music From: Stock-Music.net A Certified Purchased License [...]

As drinking coffee or tea while they are very in high temperature, is very harmful for health, this little project helped me to cool down my coffee or tea cups in a very short time. Simple,small,beautiful, saving money and electricity, very small power consumption unit.

Although this little homemade device is not actually useful for much, it does demonstrate the concept of energy storage by flywheel. I made it from a brushless DC cooling fan motor. The motor is rated for 12 volts but I have pushed it to 18 without electrical or mechanical failure. At 18 volts the flywheel [...]