Water is awesome. It’s a refreshing beverage, a hangover cure, cleanser, and now it can power your calculators. The Water Powered Calculator has 3 water powered batteries. Each battery has a pair of electrodes made of a special alloy that produces electricity through a chemical reaction. The water will last you 2-3 months before evaporating and then you simply refill the cartridge with more water. It’s free energy! The clear plastic shell of this calculator lets you see what’s happening inside. Read more [...]

Posted on April 25, 2011 by David Allen You know that time when the AA or the AAA battery starts to run down, this is when we normal replace them and most of the time throw them away. However, it seems that these worn out batteries still have some life in them and this device called the R Battery has been designed to make the most of that remaining power by squeezing out the smallest amount of energy from one, which would normally end up in the bin. Source [Ubergizmo] Read more [...]

  Australian researchers have figured out a way to harness the energy we use while typing to power a laptop. Using piezoelectricity, this method works in a similar way to cigarette lighters that create a spark by striking a piezoelectric crystal. To power a laptop, though, a much thinner film of the piezoelectric material would have to be developed using nanotechnology. It’s so thin, it can be coated onto various electronic parts and integrated into a variety of gadgetry. “The Read more [...]