This week, a company called Casimir Inc. emerged from “stealth mode” to announce that it had raised significant funding from ...

Inspired by the classic drinking bird toy, scientists have developed an engine that efficiently converts energy from water evaporation into electricity to power small electronics. The device produces ...

BOULDER, Colo. — Imagine a future where simply driving along a highway or even walking down a sidewalk could produce electricity to power street lights or traffic signals. That future is now for ...