It's hard to believe that Nissan, which sold more EVs last year than Tesla and every other automaker, has yet to race in Formula E. However, Nissan announced late last year that it would become the ...

A frequency shift experienced by an observer whenever a source of waves moves away from or towards the observer is a feature common to all waves — a phenomenon called the Doppler effect. Indeed, ...

Vortex light carries orbital angular momentum (OAM) characterized by exp(ilθ), where θ is the angular coordinate and l is the topological charge (TC) 1. OAM beams have been widely used in a variety of ...

Expertise from Forbes Councils members, operated under license. Opinions expressed are those of the author. Imagine you're at the train station, waiting to catch the northbound train. It's a quiet ...

The Doppler shift of sound or light waves from a moving source is familiar to physicists and non-physicists alike. Now, researchers in China and Australia have seen the more exotic inverse Doppler ...

Sitting on the beach at Gecko Island one afternoon, A man finds himself beneath the flight path of the airplanes leaving East Blue Airport. a) What frequency will the man hear as a jet, whose engines ...

Redshift and blueshift are used by astronomers to work out how far an object is from Earth. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

We can't witness the birth of our own Solar System, but the Atacama Large Millimeter/submillimeter Array (ALMA) is providing a picture of how it may have happened. ALMA spotted signs of three giant ...

Indranil Banik does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...