Want a lamp that needs not to use any energy to run? Well, you can already have it now with the LED Lamp that lights up with the use of mud. Yes you read it right, a lamp that is powered by a soil is now available designed by the Dutch designer Marieke Staps. All it need to have in order to power up is the metabolism of biological life that produces enough electricity to keep the LED lamp burning with the help of a group of cells that contain copper and zinc that conduct the electricity and a constant splash of water.
Source: Marieke Staps via TreeHugger
