The passing gravitational waves “stretch or contract the universe by around 20 meters [about 65 feet] or so,” says Matthew ...

So-called Rayleigh–Bloch waves can release enormous amount of energy that can damage technical systems under certain ...

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; ...

Chaplain, G.J., Hawkins, S.C., Peter, M.A. et al., Acoustic lattice resonances and generalised Rayleigh-Bloch waves. Commun Phys 8, 37 (2025): https://doi.org/10.1038/s42005-025-01950-4 ...

The government has already de-licensed 605 MHz spectrum in the 5 GHz frequency band. Kochhar said that the de-licensed radio waves still have ... of 464 people per square kilometres.

Quantum computation + quantum sensing = a new way to think about measurement on the tiniest scale, say researchers.

A new Derby model revisited the four-hole lace-up shape by combining tonal calfskin and suede for an unexpected twist, while more casual options included the Easy Nova hybrid city styles in calfskin ...

Our physics expert picks his top-five equations, plus a scheme to supply US power needs with a bucket of baseballs. Thanks, ...

Crowds reach a critical point where individual movement is overtaken by a collective dynamic, causing the mass to adhere to ...