http://www.core77.com/competitions/greener.../projects/4306/
This is an awesome idea. You turn it upside down, the weights move to the top, gravity pulls it down over the course of 4 hours and it generates the equivilant of a 40 watt lightbulb. All free of electricity.
Wow...... Such a simple idea......
This is an awesome idea. You turn it upside down, the weights move to the top, gravity pulls it down over the course of 4 hours and it generates the equivilant of a 40 watt lightbulb. All free of electricity.
Wow...... Such a simple idea......