As we all know, in the photoelectric information age, electromagnetic wave is closely related to our life. Not only sunlight, wireless remote control, wireless communication, etc. can produce ...

Majority of reconfigurable intelligent surfaces (RISs) up to present have been investigated under ideal conditions such as anechoic chambers or experimental sites with predetermined electromagnetic ...

This black hole merger animation was created using data collected by the LIGO and Virgo gravitational wave detectors, an observation designated GW190412.

Eight people lost their lives after a boat capsized in Lake Tahoe. Images show how rough the waters were. Chelsea Edsall was caught in a sudden storm while visiting Lake Tahoe. Edsall rented a ...