Sound is usually treated as the most familiar of physical phenomena, the background noise of daily life rather than a ...

Heat is not supposed to behave like this. In everyday life, warmth seeps and diffuses, spreading from hot to cold in a slow, smearing process that never looks anything like a crisp sound wave. Yet ...

The acoustic properties of an ultracold fermion gas have been measured either side of the superfluid transition temperature in an experiment that has been described as “near perfect” and “beautiful”.

Helium leaks are hard to detect, since it is odorless, colorless, tasteless, and does not react with other chemical ...

The magical acoustic secrets of a famous cave known as the "Devil's Church" have been revealed by researchers. The Devil's Cave, also known Pirunkirkko, is situated in the Koli mountain range in ...

Conventional wisdom in physics dictates that sound waves are massless fluctuations in pressure that travel through materials like air, water, and eardrums — and can’t travel through empty space.

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Determining the "loudest recorded sound" depends on how you define sound and on which measurements you choose to include.

Helium leaks are hard to detect. Helium is odorless, colorless, tasteless, and does not react with other chemical substances.

Video cameras continue to gain widespread use, but there are privacy and environmental limitations in how well they work. Acoustical waves are an alternative medium that may bypass those limitations.