Using radial velocity method and direct imaging, astronomers have found a compact companion of a nearby star known as HD 118475. The finding is detailed in a paper published March 11 on the arXiv pre-print server, in which ...
Antennas catch radio waves, a form of electromagnetic radiation, from the air and convert the energy into electrical signals that feed modern telecommunications. They can also convert electrical signals into radio waves. ...
Optics & Photonics
Mar 13, 2019
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5
Scientists at Tokyo Institute of Technology have fabricated a multiplexer/demultiplexer module based on a property of light that was not being exploited in communications systems: the optical vortex. Such devices will be ...
Internet
Mar 8, 2019
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5
Work has begun on a new CubeSat mission that will demonstrate for the first time a new, highly promising technique for measuring soil moisture from space—data important for early flood and drought warnings as well as crop-yield ...
Space Exploration
Feb 21, 2019
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11
Of all nocturnal animals, only dung beetles can hold their course using polarized moonlight. Researchers at Lund University in Sweden have now shown that beetles can use polarized light when its signal strength is weak, which ...
Plants & Animals
Feb 5, 2019
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217
Light is more energy-efficient and a faster way of transferring data than electricity. Until now, the rapid attenuation of light signals in microchips has prevented the use of light as a source of an information signal.
Optics & Photonics
Feb 5, 2019
0
5
Scientists from The University of Manchester have found a way to trick the eye into thinking the world is brighter than it actually is.
Cell & Microbiology
Jan 28, 2019
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222
In 1961, famed astronomer Frank Drake created a formula for estimating the number of extraterrestrial intelligences (ETIs) that could exist within our galaxy. Known as the "Drake Equation," this formula demonstrated that ...
Astronomy
Jan 2, 2019
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73
Researchers have demonstrated a new technique that can store more optical data in a smaller space than was previously possible on-chip. This technique improves upon the phase-change optical memory cell, which uses light to ...
Optics & Photonics
Dec 20, 2018
1
55
Scientists have long known that synthetic materials—called metamaterials—can manipulate electromagnetic waves such as visible light to make them behave in ways that cannot be found in nature. That has led to breakthroughs ...
Quantum Physics
Dec 17, 2018
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661
