Acoustic frequency combs organize sound or mechanical vibrations into a series of evenly spaced frequencies, much like the teeth on a comb. They are the acoustic counterparts of optical frequency ...

Physicists have demonstrated that waves can bounce off boundaries in time, not just in space, producing signals that behave ...

A grape, sliced nearly in half and placed in a household microwave, can produce a bright flash of plasma, the same high-energy state of matter found in lightning bolts and the surface of the sun. For ...

Wavy hairstyles are always trending for a reason: When you want beachy texture and romantic volume, waves are hard to beat.

Supermassive black hole binaries form naturally when galaxies merge, but scientists have only confidently observed a very few of these systems that are widely separated. Black hole binaries that ...

For a single supermassive black hole, extremely strong lensing occurs only when a star lies almost exactly along the line of ...

Researchers propose a new technique to identify supermassive black hole binaries through gravitational lensing causing ...

Advancements in spin-wave filters could revolutionize 6G communication, providing flexible RF front ends with superior ...

A groundbreaking optical surface defies traditional rules of light, offering new possibilities in photonics and imaging.

Dispersion is an inherent feature of electromagnetic waves. It allows light to behave differently at different wavelengths, ...

A new metasurface design lets light of different spins bend, focus, and behave independently—while staying sharp across many colors. The trick combines two geometric phase effects so each spin channel ...

A team of engineers has made major strides in generating the tiniest earthquakes imaginable. The team’s device, known as a surface acoustic wave phonon laser, could one day help scientists make more ...