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

Different frequencies sound different to us. For instance, when you hum deeply, that’s about 200 Hz. The metallic sound of a ...

It’s possible to defy gravity using sound waves, magnets or electricity, but today’s methods can’t hoist heavy items high in ...

Sound is usually something we hear, not something we touch. But researchers at Virginia Tech have found a way to turn ...

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

Acoustic frequency filters, which convert electrical signals into miniaturized sound waves, separate the different frequency ...