fstop123/Getty Images Gyeongyun Lily Min spent the last seven months in a makeshift laboratory she set up in her parent’s garage as she tried to convert vibrations produced by sound waves in ...

Anyone who owns a phone knows it's possible to convert electricity into sound waves. The reverse is possible as well, and experiments are underway across the world in harvesting sound for electricity.

A Hawaii-based company has claimed an energy harvesting breakthrough with a device which it says can convert radio frequency (RF) signals into electricity. Infrgy says its prototype device is able ...