If you wish to contribute yourself towards greener planet then the water powered calculator is for you. Yes, what you’ve heard is right – A water powered calculator. This calculator uses batteries that are powered by set of capsules which is filled with water.
You may wonder how it generates enough energy to operate the calculator; the answer for this is the two electrodes that are made of special alloys, when acted with water produce a chemical reaction which in turn produces the enough electrical power to operate the calculator.
There is no need of replacing the batteries, so, whenever the batteries run-out of power, just refill the capsules with water and plug them in to the calculator and you are all set to go.
If you think that the calculator would cost hundreds of dollars, and then you’re wrong, the green-tech hydro powered calculator costs just $10.99 and it measures 2 inches tall x 5.25 inches long x 3 inches wide. You can get one from here.
[via: gadgetsteria]
