Author Topic: Gravity powered light (Read 251 times)

AKIron · « **on:** February 24, 2008, 10:23:05 AM »

Pretty kewl. Someday you may be able to light your whole house for a day with a 30 minute workout.

http://www.sciencedaily.com/releases/2008/02/080220221822.htm

Mickey1992 · « **Reply #1 on:** February 24, 2008, 10:36:32 AM »

Pretty Cool.

"The light-emitting diode (LED) lamp, named Gravia, has just won second place in the Greener Gadgets Design Competition as part of the Greener Gadgets Conference in New York City."

It's certainly a better gadget than the EnerJar which won top prize. All that guy did was create a DIY version of a product that has been available for years (eg. Kill-a-watt).

http://www.core77.com/blog/featured_items/greener_gadgets_design_competition_results_8851.asp

Chairboy · « **Reply #2 on:** February 24, 2008, 10:38:25 AM »

Not really gravity powered, it's muscle powered. Gravity is just the method used to regulate the conversion of the potential energy (created by the muscle work) into usable electricity.

DieAz · « **Reply #3 on:** February 24, 2008, 10:45:58 AM »

interesting website , thanks for posting it.

Maverick · « **Reply #4 on:** February 24, 2008, 11:29:35 AM »

What will they think of next, a gravity powered clock? Oooops nope that was already done, well over a century ago.......

Interesting toy.

DYNAMITE · « **Reply #5 on:** February 24, 2008, 11:41:49 AM »

Nice find Iron

OOZ662 · « **Reply #6 on:** February 24, 2008, 01:03:03 PM »

All you need is a hotspring.

These guys sell everything that scares your parents, including Uranium ore.

Chairboy · « **Reply #7 on:** February 24, 2008, 01:44:04 PM »

I've got some uranium at my desk, in a marble. Apparently they fluoresce nicely in an airport X-Ray machine, and dropping a couple into a fellow worker's briefcase as he's leaving on a business trip can create hilarity.