November 7, 2012

Light that Travels Infinitely Fast. Wait, What?

Adrian Cho, Science Now

AP Photo

Within a nanometer-scale device, visible light travels infinitely fast—by one measure—a team of physicists and engineers reports. The gizmo won't lead to instantaneous communication—the famous speed limit of Albert Einstein's theory of relativity remains in force—but it could have a variety of uses, including serving as an element in a type of optical circuitry.

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TAGGED: Nanotechnology, Light, Light Speed


Speed of light experiments measure the average speed to a destination and back, leaving open the possibility that the speed may differ over each leg. Now Canadian physicists have measured the one-way speed of light to test... more ››
October 17, 2013
Physicists Want to Tie Light into Knots
Hamish Johnston, Physics World
Fantastical knot-like structures of light could soon be created in the lab thanks to calculations made by physicists in the US, Poland and Spain. They have discovered a new family of solutions to Maxwell's equations that are... more ››