Found on YouTube: Battery -gt Flashlight: How Chemicals Turn Electrons into Light #sci #battery #physics #howto

Battery -gt Flashlight: How Chemicals Turn Electrons into Light #sci #battery #physics #howto
DU Story
Ever wondered how that tiny battery powers your flashlight? Inside a metal cylinder, two terminals connect different chemicals ...
Via YouTube - https://www.youtube.com/watch?v=u9iEtxNlt2Q