You may not realize it, but the Doppler effect is everywhere in our lives, from tracking the speed of cars with radar to locating satellites in the sky. It's all about how waves change their frequency when a source (like ...
Optics & Photonics
Oct 20, 2023
0
321
The development of new information and communication technologies poses new challenges to scientists and industry. Designing new quantum materials—whose exceptional properties stem from quantum physics—is the most promising ...
Condensed Matter
Mar 20, 2023
0
286
Building off a breakthrough "anti-laser," a team of researchers has developed a system that can direct light and other electromagnetic waves for signal processing without any unwanted signal reflections—an innovation that ...
Optics & Photonics
Jan 26, 2023
0
198
Communications across the vastness of interstellar space could be enhanced by taking advantage of a star's ability to focus and magnify communication signals. A team of graduate students at Penn State is looking for just ...
Astronomy
Jul 6, 2022
0
239
The remnants of a collapsed neutron star, called a pulsar, are magnetically charged and spinning anywhere from one rotation per second to hundreds of rotations per second. These celestial bodies, each 12 to 15 miles in diameter, ...
Space Exploration
May 3, 2022
0
175
How fast can electronics be? When computer chips work with ever shorter signals and time intervals, at some point they come up against physical limits. The quantum-mechanical processes that enable the generation of electric ...
Quantum Physics
Mar 25, 2022
1
987
Researchers at the National Institute of Standards and Technology (NIST) and Wavsens LLC have developed a method for using radio signals to create real-time images and videos of hidden and moving objects, which could help ...
General Physics
Jun 25, 2021
0
261
Researchers at the National Institute of Standards and Technology (NIST) and collaborators have demonstrated an atom-based sensor that can determine the direction of an incoming radio signal, another key part for a potential ...
General Physics
Apr 5, 2021
0
1224
Working with theorists in the University of Chicago's Pritzker School of Molecular Engineering, researchers in the U.S. Department of Energy's (DOE) Argonne National Laboratory have achieved a scientific control that is a ...
Quantum Physics
Jan 13, 2021
0
1131
An international research team lead by Aalto University has found a new and simple route to break the reciprocity law in the electromagnetic world, by changing a material's property periodically in time. The breakthrough ...
General Physics
Dec 23, 2020
0
1193
