So-called Rayleigh–Bloch waves can release an enormous amount of energy that can damage technical systems under certain circumstances. They only exist below a precisely defined cut-off frequency ...

For the first time, scientists have demonstrated that negative refraction can be achieved using atomic arrays—without the ...

Dolby Atmos is one of the most popular features in soundbars over $400, so I look at features that help maximize spatial sound quality. For example, does the soundbar offer dedicated height ...

Australia's top hi-fi and AV in the Sound+Image Awards 2024 Our Awards recognise 40 winning products and companies in the ultimate audio and AV buying guide S+I AWARDS Check out these world-class ...

For example, during its most recent flight, which occurred on Jan. 10, the XB-1 nosed right up to the edge of the sound barrier, reaching Mach 0.95. Flight 12, however, will be momentous ...

After years of testing and refinement, a pilot flying the aerospace company’s XB-1 scale prototype finally broke the sound barrier during a livestream event—not once, not twice, but three times.

When converted to audio, the chorus waves resembled the sound of birds chirping at dawn. Richard Horne, a space weather expert with the British Antarctic Survey, called the findings “a ...