Who Created The Hand Crank Flashlight?
Who Created The Hand Crank Flashlight? Based on Michael Faraday’s groundbreaking invention (which he called the “dynamo”), this flashlight uses only a disk magnet and coils of wire to generate electricity. Buy 10 and pay $9.00 each! Change kinetic energy into electrical energy by cranking this hand-held ‘dynamo!’ Who invented the hand crank flashlight? In