In 1928, Indian physicist Sir C. V. Raman and his colleague K. S. Krishnan discovered that when light interacts with matter, parts of the scattered light undergo changes in energy due to interaction with molecular vibrations, ...
Optics & Photonics
Apr 4, 2024
0
10
Emerging technologies for non-line-of-sight imaging can detect objects even if they are around a corner or behind a wall. In new work, researchers use a new type of detector to extend this method from visible light into near ...
Optics & Photonics
Nov 30, 2023
0
5
Astronomers have known for decades that the universe is expanding. When they use telescopes to observe faraway galaxies, they see that these galaxies are moving away from Earth.
Astronomy
Nov 15, 2023
44
70
Future missions will be able to find signatures of violating the parity-symmetry in the cosmic microwave background polarization more accurately after a pair of researchers has managed to take into account the gravitational ...
Astronomy
Nov 2, 2023
16
108
A mile-thick ice sheet in Greenland vanished around 416,000 years ago during a period of moderate natural warming, driving global sea rise to levels that would spell catastrophe for coastal regions today, a study said Thursday.
Earth Sciences
Jul 20, 2023
0
68
In the 1960s, astronomers began noticing a pervasive microwave background visible in all directions. Thereafter known as the Cosmic Microwave Background (CMB), the existence of this relic radiation confirmed the Big Bang ...
Astronomy
Apr 21, 2023
9
185
An international team of scientists have successfully mapped the magnetic field of our galaxy, the Milky Way, using telescopes that observe the sky in the microwave range. The new research is published in Monthly Notices ...
Astronomy
Jan 12, 2023
0
507
Researchers have developed a new chip-based beam steering technology that provides a promising route to small, cost-effective and high-performance lidar (or light detection and ranging) systems. Lidar, which uses laser pulses ...
Optics & Photonics
Aug 4, 2022
0
601
Astronomers at the University of Toronto have spotted some of the most elusive stuff in our universe by taking a deep look at the cosmic web, the network of filaments and knots that trace the large-scale distribution of galaxies.
Astronomy
Jul 12, 2022
7
4071
Many bird species fly together with conspecifics in flocks to safely cover flight distances. To avoid collisions with each other and head in the same direction, flock members have to communicate and coordinate their flight ...
Plants & Animals
Jun 30, 2022
0
17
