A reconfigurable intelligent surface (RIS) is a thin, engineered surface made of many small elements that can be tuned to control electromagnetic waves. Instead of acting like a plain reflector, an ...

Abstract: Angular momenta of electromagnetic waves are important both in concepts and applications. In this work, we systematically discuss two types of angular momenta, i.e., spin angular momentum ...

In the colder months, temperatures can feel a lot more brutal when wind is involved. The lower the wind chill, the faster hypothermia and frostbite can set in. Watch the video above to learn how wind ...

The telecom networks originally built to carry phone calls and packets of data are in the midst of a dramatic shift. The past ...

“This system is unique because we are able to view the planet illuminated by its host star, but not see the host star at all, ...

Military historians, professionals, and strategists attributed U.S. military victories in World Wars I and II to two basic points: ...

TEXAS — In December 2025, Texas became the first state to have a cryptocurrency reserve with a $5 million investment in Bitcoin. Also, in June 2025, Texas allowed precious metal backed IRAs ...

Imagine a battlefield shrouded not in smoke and fog but in silence. A silence not of peace but of disruption. No satellite communication connecting ...

Discover the science and technology behind the electromagnetic railgun, a revolutionary long-range naval weapon that uses intense electricity instead of traditional rocket fuel. This video begins with ...

The Dark Forest theory is one proposed solution to the famed Fermi Paradox, which has bewitched astronomers for more than half a century. To put it concisely, the paradox asks if the cosmos is nearly ...