Move Over Fiber Optics

Speed of light broken with basic lab kit

Electrons usually travel at about two-thirds of light speed in wires, slowed down as they bump into atoms. Hache says it may be possible to send usable electrical signals to near light speed.

Scientists have sent light signals at faster-than-light speeds over the distances of a few metres for the last two decades – but only with the aid of complicated, expensive equipment. Now physicists at Middle Tennessee State University have broken that speed limit over distances of nearly 120 metres, using off-the-shelf equipment costing just $500.