Our senses are stuck in the past. There's a flash of lightning, and then seconds pass until we hear the rumble of distant thunder. We hear the past.
Space Exploration
Dec 28, 2018
14
147
The last missing particle of the Standard Model, the Higgs boson, was discovered in 2012 in experiments at the Large Hadron Collider. Since then, searching for new, related particles has been underway. Predicted by various ...
General Physics
Dec 21, 2018
2
123
The world has one official kilogram against which all other country's kilograms are measured and scales calibrated.
General Physics
Dec 17, 2018
0
1103
When a dense sheet of electrons is accelerated to almost the speed of light, it acts as a reflective surface. Such a 'plasma mirror' can be used to manipulate light. Now an international team of physicists from the Max Planck ...
Optics & Photonics
Dec 5, 2018
0
67
In the shadowy regions of black holes two fundamental theories describing our world collide. Can these problems be resolved and do black holes really exist? First, we may have to see one and scientists are trying to do just ...
Astronomy
Nov 22, 2018
333
287
"If one made a research grant application to work on time travel it would be dismissed immediately," writes the physicist Stephen Hawking in his posthumous book Brief Answers to the Big Questions. He was right. But he was ...
General Physics
Nov 9, 2018
14
436
Scientists have produced an extremely bright spot of light that can travel at any speed—including faster than the speed of light. Researchers have found a way to use this concept, called "flying focus," to move an intense ...
Optics & Photonics
Nov 5, 2018
0
43
One day in the not-so-distant future, light sails may hurtle through space at speeds of around 20% of the speed of light (or 60,000 km/sec), propelled not by fuel but rather by the radiation pressure from high-power lasers ...
A plan to incorporate a third bent waveguide into a silicon-based light splitter led A*STAR researchers to develop a device capable of a 30-fold improvement in splitting efficiency. The novel on-chip light splitter marks ...
Optics & Photonics
Jul 16, 2018
0
6
Researchers at the Technion-Israel Institute of Technology have constructed a first-of-its-kind optic isolator based on resonance of light waves on a rapidly rotating glass sphere. This is the first photonic device in which ...
Optics & Photonics
Jul 13, 2018
0
9
