Ambient electromagnetic energy harnessed for small electronic devices
Thursday, July 7, 2011 - 05:00
in Physics & Chemistry
(PhysOrg.com) -- Researchers have discovered a way to capture and harness energy transmitted by such sources as radio and television transmitters, cell phone networks and satellite communications systems. By scavenging this ambient energy from the air around us, the technique could provide a new way to power networks of wireless sensors, microprocessors and communications chips.