There’s nothing worse than discharged at the most inopportune moment smartphone battery. But for the Amateur scientific experiments Thomas Kim is no longer a problem. In one of his last projects in which he turns everyday trash into interesting inventions, Kim showed how you can charge iPhone in an emergency.
As the generator acts as a small waterfall, rotating a few plastic bottles forming a water wheel. Through phase motor and rectifier miniature source turns rotational energy into electricity. It was enough to charge the battery of the smartphone.
Thomas Kim was clearly not in a desperate situation, but he had enough time to videotape your creation. Such a generator can also power the LEDs and other electronics.