Solar cell turns light into electricity that powers a small electrolyzer.
This breaks water into oxygen and hydrogen. Then a micro fuel cell turns the hydrogen back into electricity and water vapor that drives a small motor. All devices made with see-through construction so you can see the gas flows. With just sunshine and water you can run the motor continuously for hours at a time. A great way to learn and teach how this non-polluting and completely renewable energy system can soon become a part of the world's future.