For a sound to be heard you need three things: A vibrating object A material for the sound wave to travel through, such as air (we call this a medium) Something to detect the sound e.g. your ear ...

Researchers at ETH Zurich have managed to make sound waves travel only in one direction. In the future, this method could ...

But not many know how helium works. Helium is much lighter than air, so sound waves move much faster through the gas. This amplifies the higher frequencies in your voice. The gas sulfur ...

Mia Farstad has various tools at her disposal to enhance emotional and physical healing, including some that are rather ...

But scientists in Cardiff hope to help give extra warning time for tsunamis by using the fast-moving underwater sound waves. "By taking measurements of acoustic gravity waves, we basically have ...

These waves are higher frequency than surface waves. P waves are also known as compressional waves, because they push and pull. Particles subjected to a P wave move in the same direction that the wave ...