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

A quiet revolution is taking shape in the world of physics, and it doesn’t rely on exotic particles or massive particle colliders. Instead, it begins with something much more familiar—sound.

This new high-tech system puts out fires using sound waves. The revolutionary technology could help protect homes in high ...

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 ...

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

Cancer is one of the leading causes of death in the U.S., second only to heart disease. But a new cancer treatment method ...

Sound needs a medium (solid, liquid, or gas) to travel. Space is a vacuum, lacking the matter to carry sound waves. No sound in space means no echoes. While a near-perfect vacuum, some sounds can be ...

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