Photovoltaics, the conversion of light to electricity, is a key technology for sustainable energy. Since the days of Max Planck and Albert Einstein, we know that light as well as electricity come in tiny, quantized packets ...
Optics & Photonics
Apr 14, 2023
0
145
When it comes to studying particles in motion, experimentalists have followed a 100-year-old theory that claims the microscopic motion of a particle is determined by random collisions with molecules of the surrounding medium, ...
Nanophysics
Mar 14, 2023
0
146
What exactly is light—and what is it made of? It's an age-old question that dates back to antiquity, and one of the most important investigations undertaken by scientists looking to understand the nature of reality.
Optics & Photonics
Mar 14, 2023
0
1678
Quantum entanglement refers to a phenomenon in quantum mechanics in which two or more particles become linked such that the state of each particle cannot be described independently of the others, even when they are separated ...
Quantum Physics
Feb 24, 2023
0
295
Top scientists and security experts moved the "Doomsday Clock" forward on Tuesday to just 90 seconds to midnight -– signaling an increased risk to humanity's survival from the nuclear shadow over the Ukraine conflict and ...
Other
Jan 24, 2023
0
20
The "Doomsday Clock," which represents the judgment of leading science and security experts about the perils to human existence, is to be updated on Tuesday against the backdrop of the war in Ukraine and other crises.
Other
Jan 24, 2023
0
11
Scientists have advanced in discovering how to use ripples in space-time known as gravitational waves to peer back to the beginning of everything we know. The researchers say they can better understand the state of the cosmos ...
General Physics
Jan 20, 2023
51
5296
Tick, tick, tick. An update is coming to the "Doomsday Clock," representing the judgment of leading science and security experts about the perils to human existence.
Other
Jan 17, 2023
0
13
How would our world be viewed by observers moving faster than light in a vacuum? Such a picture would be clearly different from what we encounter every day. "We should expect to see not only phenomena that happen spontaneously, ...
General Physics
Dec 22, 2022
49
3325
Scientists have, for the first time, developed a quantum experiment that allows them to study the dynamics, or behavior, of a special kind of theoretical wormhole. The experiment has not created an actual wormhole (a rupture ...
General Physics
Nov 30, 2022
37
1574
