Light is an electromagnetic wave: It consists of oscillating electric and magnetic fields propagating through space. Every wave is characterized by its frequency, which refers to the number of oscillations per second, measured ...
Optics & Photonics
Dec 2, 2021
4
3653
Copper in small quantities is an essential nutrient but can also be toxic. Human immune cells use copper to fight invading pathogens. Some microorganisms, in turn, have evolved ways to take up copper and incorporate it into ...
Cell & Microbiology
Nov 23, 2021
0
249
Over the past several decades, researchers have moved from using electric currents to manipulating light waves in the near-infrared range for telecommunications applications such as high-speed 5G networks, biosensors on a ...
Optics & Photonics
Nov 22, 2021
0
174
Ocean color is hard to observe, as water scatters sunlight and only visible light can be transmitted. As water deepens, the intensity of light transmitted through the water decreases. Traditional concentric system spectrometers, ...
Optics & Photonics
Nov 9, 2021
0
4
A collaborated team led by Prof. Su Fuhai from the Hefei Institutes of Physical Science (HFIPS) of the Chinese Academy of Sciences (CAS) recently identified the ultrafast dynamics in monolayer MoS2/ReSe2 heterostructures.
Nanomaterials
Nov 1, 2021
0
75
Astronomers have used the Ooty Radio Telescope (ORT) to probe a blazar known as J1415+1320. Results of the study deliver essential information regarding the variability of this peculiar source. The research was detailed in ...
A "massive" black hole (MBH) is one whose mass is more than about one hundred thousand solar-masses. MBHs reside at the centers of most galaxies, and when they actively accrete gas and dust onto their surrounding hot disk ...
Astronomy
Oct 22, 2021
0
337
Most people have already experienced first-hand how important a healthy microbiome is when they had to take a broad-spectrum antibiotic. Unfortunately, the drug does not only destroy the pathogens. It also affects the 'good' ...
Cell & Microbiology
Oct 12, 2021
0
50
Equiangular lines are lines in space that pass through a single point, and whose pairwise angles are all equal. Picture in 2D the three diagonals of a regular hexagon, and in 3D, the six lines connecting opposite vertices ...
Mathematics
Oct 4, 2021
0
1457
If two black holes merge in the middle of space, and nobody's around to see it, does it really happen?
Astronomy
Sep 13, 2021
0
44
