Image 1 of 1
MECHANICALLY POWERED FLASHLIGHT
Powered by the muscle energy of the user
When the crank is turned, energy is stored in the carbon steel spring, released on demand and converted to electricity to power the lantern. Its rechargeable battery can be charged by successive spring discharges and used to power other AA appliances.
Copyright:© 2009 Richard Megna - Fundamental Photographs
Search for Keywords: