During a thunderstorm, we all know that it is common to hear thunder after we see the lightning. That's because sound travels much slower (768 miles per hour) than light (670,000,000 miles per hour).
Optics & Photonics
Nov 26, 2014
14
3
The image dazzles from a computer screen in the corner of the room: six beams of red-orange light bursting from a luminous Milky Way star.
Space Exploration
Apr 18, 2022
7
266
Austrian physicists say a breakthrough in next-generation quantum cryptography could allow encrypted messages to be bounced off satellites, the British journal Nature reported Sunday.
Quantum Physics
May 3, 2009
7
0
(PhysOrg.com) -- IBM scientists today unveiled a significant step towards replacing electrical signals that communicate via copper wires between computer chips with tiny silicon circuits that communicate using pulses of light. ...
Optics & Photonics
Mar 3, 2010
4
1
A new design for light-emitting diodes (LEDs) developed by a team including scientists at the National Institute of Standards and Technology (NIST) may hold the key to overcoming a long-standing limitation in the light sources' ...
Nanophysics
Aug 14, 2020
0
2853
Scientists from The University of Manchester have found a way to trick the eye into thinking the world is brighter than it actually is.
Cell & Microbiology
Jan 28, 2019
0
222
Researchers at the University of Rochester and Cornell University have taken an important step toward developing a communications network that exchanges information across long distances by using photons, mass-less measures ...
Optics & Photonics
Nov 4, 2020
1
2810
(PhysOrg.com) -- When physicists entangle light, they usually use nonlinear crystals as the source. However, it’s difficult to control the entanglement generation process in a bulk crystal, and so scientists have been looking ...
Eight billion years ago, something happened in a distant galaxy that sent an incredibly powerful blast of radio waves hurtling through the universe.
Astronomy
Oct 22, 2023
1
75
(Phys.org) —A pair of breakthroughs in the field of silicon photonics by researchers at the University of Colorado Boulder, the Massachusetts Institute of Technology and Micron Technology Inc. could allow for the trajectory ...
Optics & Photonics
Oct 1, 2013
2
0
