IT is very easy to form a mental picture of the displacements in an isotropic elastic solid transmitting a plane transverse wave. Alternate planes of constant phase are sheared relatively to one ...

WASHINGTON — Researchers have designed and demonstrated two all-silicon terahertz metasurface devices that can be used to create four optical channels for simultaneously implementing different optical ...

A pair of space zombies show that dead stars are still capable of incredible physics. Researchers found this out when they studied data from one of the most important astronomical events of the last ...