Shake Flashlight - You Won't Need to Buy Batteries Never Again

By: krmak

24,463 views

Uploaded on March 25, 2008 by krmak

This flashlight is based on Faradays Law of Inductance: a magnet passes back and forth between a wire coil giving charge to capacitor that powers the LED.

Nice thing to have in emergency situations.. It is even good for exercise ;)

Tags:
Shake, Flashlight, Torch, Lamp, LEDs, Faraday, Capacitor, Coil, Magnets, Inductance, Batteries, How, DIY, How To, Science & Tech
Comments on Shake Flashlight - You Won't Need to Buy Batteries Never Again

RECOMMENDED CHANNELS