The Joule Thief uses cans as a battery power
Tuesday, June 21, 2011 - 13:00
in Physics & Chemistry
(PhysOrg.com) -- Thanks to a child's toy and the mind of T.H Culhane visitors to the explorers symposium at the National Geographic headquarters got to take a look at how the world of aluminum cans we use every day can be used to power batteries. The project began, as many things do, with a video on YouTube. In this video a child uses aluminum cans to make a very small and simple battery.