Water is the most abundant substance on Earth. It might also be the most powerful; given enough time it can move mountains. (Or at least whittle them down.) However, just because about 71 percent of the Earth is covered with water, that doesn't mean a small quantity of it cannot do big things. Specifically, 46 ounces of the stuff.
The PowerPot is a small portable cooking pot that debuted last year. Except unlike most cooking vessels, this one generates electricity when used. The thermoelectric generator converts a temperature difference into energy; fill it with water and place it over … Read more