Researchers at the University of Sydney Nano Institute have invented a compact silicon semiconductor chip that integrates electronics with photonic, or light, components. The new technology significantly expands radio-frequency ...
Optics & Photonics
21 hours ago
0
71
Graphene is well-known for its high electrical conductivity, mechanical strength, and flexibility. Stacking two layers of graphene with atomic layer thickness produces bilayer graphene, which possesses excellent electrical, ...
Nanophysics
Oct 20, 2023
0
8
University of Otago physicists have used a small glass bulb containing an atomic vapor to demonstrate a new form of antenna for radio waves. The bulb was "wired up" with laser beams and could therefore be placed far from ...
Optics & Photonics
Oct 18, 2023
4
396
For the first time ever, a NASA probe is journeying to an object composed not of rock, ice, or gas, but metal: the asteroid Psyche.
Planetary Sciences
Oct 12, 2023
0
57
There are unexplored regions of the universe—and there are also unexplored times. In fact, there's a nearly 400-million-year gap in our universe's history that we've never seen: a time before stars known as the Dark Ages. ...
Space Exploration
Sep 26, 2023
0
85
Many songbirds use the Earth's magnetic field as a guide during their migrations, but radio waves interfere with this ability. A new study published has found an upper bound for the frequency that disrupts the magnetic compass.
Ecology
Aug 28, 2023
1
86
Using the LOw Frequency ARray (LOFAR), astronomers from the University of Bologna, Italy and elsewhere, have conducted radio observations of the nearby galaxy cluster Abell 2142. In result, they detected a new component of ...
What do you feel when you see the aurora?
Planetary Sciences
Aug 15, 2023
0
101
The hunt for alien life and its radio signals from beyond our solar system is still coming up dry. But, it's not for lack of looking for possible advanced civilizations.
Astronomy
Aug 15, 2023
0
154
A research team at the Advanced Science Research Center at the CUNY Graduate Center (CUNY ASRC) has shown that it is possible to manipulate photons so that they can collide, interacting in new ways as they cross paths. The ...
Quantum Physics
Aug 14, 2023
0
87
Radio frequency (RF) is a frequency or rate of oscillation within the range of about 3 Hz to 300 GHz. This range corresponds to frequency of alternating current electrical signals used to produce and detect radio waves. Since most of this range is beyond the vibration rate that most mechanical systems can respond to, RF usually refers to oscillations in electrical circuits.
This text uses material from Wikipedia, licensed under CC BY-SA
