Using a regular speaker blasting out a narrow beam of sound, researchers have developed an LED that can actually be powered by nothing but audio. Providing a new way to deliver wireless power to devices from greater distances.
Wireless power? Nothing new. It’s been around for at least 100 years, although only recently has it reached the point where a truly wireless future was believed possible. Now, an update of sorts from MIT WiTricity means it’s even closer.
