Physicists propose method to measure variations in the speed of light
How far back are we looking in time?
The Universe is a magic time window, allowing us to peer into the past. The further out we look, the further back in time we see. Despite our brains telling us things we see happen at the instant we view ...
Interaction between light and sound in nanoscale waveguide
Scientists from Ghent University and imec announce today that they demonstrated interaction between light and sound in a nanoscale area. Their findings elucidate the physics of light-matter coupling at these ...
Switching superconductivity by light
A research team led by Prof. Hiroshi M. Yamamoto of the Institute for Molecular Science, National Institutes of Natural Sciences has developed a novel superconducting transistor which can be switched reversibly ...
Why is Andromeda coming toward us?
I don't want to alarm you, but there's a massive galaxy heading our way and will collide with us in a few billion years. But aren't most galaxies speeding away? Why is Andromeda on a collision course with ...
Physicists find a new way to slow the speed of light
New analysis shows a way to self-propel subatomic particles
Some physical principles have been considered immutable since the time of Isaac Newton: Light always travels in straight lines. No physical object can change its speed unless some outside force acts on it.
Beijing team proposes effortless phone charging with light beams
Are aliens watching old TV shows?
You've probably heard the trope about how aliens have been watching old episodes of "I Love Lucy" and might think these are our "historical documents". How far have our signals reached?
Flashes from faster-than-light spots may help illuminate astronomical secrets
(Phys.org)—If you sweep a laser pointer across the Moon fast enough, you can create spots that actually move faster than light. Anyone can do it.
The speed of light: music to our ears
The Internet is so fast that the Bay Area can connect with New York City quicker than you can finish this sentence.
Engineers take big step toward using light instead of wires inside computers
(Phys.org)—Stanford engineers have designed and built a prism-like device that can split a beam of light into different colors and bend the light at right angles, a development that could eventually lead ...
Swift gamma-ray burst mission marks ten years of discovery
(Phys.org) —NASA's Swift spacecraft lifted off aboard a Boeing Delta II rocket from Cape Canaveral Air Force Station, Fla., beginning its mission to study gamma-ray bursts and identify their origins. Gamma-ray ...
New research lights the way to super-fast computers
New research published today in the journal Nature Communications, has demonstrated how glass can be manipulated to create a material that will allow computers to transfer information using light. This development could ...