Pedal-Powered Computer

The One Laptop Per Child project (OLPC) hopes to distribute a simple but useful laptop computer to impoverished children in developing nations at a very low cost per unit. One recurring problem in the project has been power supply. So the Afghan IT company Paiwastoon has developed this prototype pedalling machine that allows the user to crank electricity into the computer.

Link, Via: CrunchGear | Paiwastoon, Via: Neatorama

Carve Steel with Saltwater, Electricity and a Tin Earring

Boing Boing Video (boingboingvideo.com) teamed up with Theo Gray and Popsci.com to produce this video that demonstrates how you can mold steel with electrochemical machining, using a soft, cheap piece of tin -- without any physical contact. LINK: Youtube