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 ...

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

Optical neural networks may provide the high-speed and large-capacity solution necessary to tackle challenging computing tasks. However, tapping their full potential will require further advances. One ...

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