I want one of these. It may not save a lot of money on the power bills, but it's still pretty cool. Plus, gravity powered device may have some better uses...
Any idea if it could power a motor to turn it over? I know I could make one that falls over once it's done, for 8 hours instead of 4, but the idea I have would still need someone to let go of it.
read more | digg story
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment