Numbers like π, e and φ often turn up in unexpected places in science and mathematics. Pascal's triangle and the Fibonacci sequence also seem inexplicably widespread in nature. Then there's the Riemann zeta function, a ...
General Physics
Jan 19, 2022
4
3406
(Phys.org)—In spite of its name, the time reversal of a wave doesn't involve sending the wave back in time, but for scientists, the process is almost as compelling. After a source generates a wave, the wave propagates through ...
(Phys.org)—Ideal invisibility cloaks like those in Harry Potter may be physically impossible, a new study shows. The researchers demonstrate that even the best invisibility cloaks can hide an object from only some observers, ...
(PhysOrg.com) -- By precisely shaking a container of shallow water, researchers have observed wave behavior that has never been seen before. In a new study, Jean Rajchenbach, Alphonse Leroux, and Didier Clamond of the University ...
Sudden cardiac death resulting from fibrillation - erratic heartbeat due to electrical instability - is one of the leading causes of death in the United States. Now, researchers have discovered a fundamentally new source ...
General Physics
May 3, 2017
9
1120
The evolving periodicity of the brightness of certain types of stars can now be described mathematically.
Mathematics
Apr 26, 2021
0
718
(PhysOrg.com) -- A new study in Austria has confirmed that spiders are extremely sensitive to vibrations, and determined they are the second most vibration-sensitive organism, topped only by cockroaches.
Metasurfaces are optically thin metamaterials that can control the wavefront of light completely, although they are primarily used to control the phase of light. In a new report, Adam C. Overvig and colleagues in the departments ...
(PhysOrg.com) -- In investigating the behavior of large-amplitude standing water waves, mathematician Jon Wilkening of the University of California, Berkeley, has discovered that the waves’ behavior cannot be explained ...
(PhysOrg.com) -- Max Planck Institute of Quantum Optics scientists generate amplitude-squeezed light fields using single atoms trapped inside optical cavities.
Quantum Physics
Jun 30, 2011
0
1
