Hydro Powered Calculator
The Hydro Calculator pictured above is powered by almost any liquid. You can pour water, juice or anything thats liquid in to the power cells and you then have a fully functional calculator. In the box you get the calculator, instructions and fuel applicator.
It works by using the fluid molecules which electrons are extracted from and provide a stream of electricity to power the calculator. The calculator costs $9.95 and is recommended from ages 8+
Via: stevespanglerscience
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