Water Powered Calculator

Jul 25, 2011 by Mostafa Dafer    No Comments    Posted under: Cool Stuff, Featured

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. It’s $10.99 from Perpetual Kid and according to my calculations, if you bought 8,243 of these you’d have enough free hydro power to run a small car (or just do a lot of math).

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