"I found a tractor fan, shock absorber, PVC pipes. Using a bicycle frame and an old bicycle dynamo, I built my machine. It was one light at first. And then four lights, with switches, and even a circuit breaker, modeled after an electric bell. Another machine pumps water for irrigation."Watch and be inspired:
Second, Justin Hall-Tipping demonstrates a material that allows us to generate electricity using our windows. Truly remarkable.