Abstract: This article presents an efficient synthesis method for generating vortex beams based on donut-shaped orbital angular momentum (OAM) metasurfaces. It not only allows one to synthesize the ...

In a breakthrough that challenges conventional physics, scientists have confirmed the existence of “second sound” — a ...

MIT researchers observe a “second wave” of heat in superfluid helium, confirming that heat propagates like sound.

As the communication range increases, turbulence becomes a significant atmospheric process that affects the propagation of optical waves. This paper presents a more accurate NLOS channel model by ...

Understanding the relationship between the structure of a tornado-like vortex and how it transports debris can help curb its ...

It's no secret that air travel requires a lot of technical know-how. What exactly is wake turbulence and how does it affect ...

Fasten your seat belts, there is more turbulence to come. Significantly, the US has not (so far) changed its basic goals for all its bilateral trade deals. Its overarching aim is to cut the goods ...

Right now, it’s caught in a vortex where they can’t seem to be able to produce things to offset things that are coming off patent. I want to stick with it, but that 7.7% yield is not a sign of ...

Galactic turbulence, a cosmic enigma influencing everything from star formation to particle movement, has been simulated with unprecedented precision. The surprising results challenge long-held ...

Once again, entire supply chains are adapting to a new tariff reality. From shippers to wholesalers to retailers and manufacturers. They’re all having to figure out what’s available and what ...