Gravity Light Project

I've just been over to Boing Boing and there's an article on a gravity powered LED light. Intrigued, I had a look:

It's a variation on the wind-up radio, but this time using a weight and gravity to do the work. I especially like the way the current can be tapped to charge up batteries and power other things. A good design!

...and I bet you didn't know that LED lights don't attract mosquitoes.