Water powered battery.

Water powered gadgets? Have we gone back to the world steam engines? Well, ultimately, the world will certainly revert back to that, given the fact of depleting oil resources and man's thirst for gasoline.

Here are a few gadgets that depend on water to work. These gadgets utilize water in unique ways to obtain power.

*Water powered clock

*Water powered massager

*Water powered calculator. (See image below.)
The image below shoes the water powered cell at the back of a calculator

Source: Inventorspot.com

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