Researchers have created a new sound wave director that can target specific ports and mute sound everywhere else.

When something vibrates, it can create sound waves. Sound waves can travel through solids like metal, liquids like water and gases like air. But they can’t travel through empty space which has nothing ...

After years of research, scientists at ETH Zurich have developed a method to make sound waves travel in a single direction.

A team of researchers has found a way to make sound waves propagate in one direction only, which could help avoid unwanted reflections and possibly pave the way for the same to be done with ...

Researchers at ETH Zurich have managed to make sound waves travel only in one direction. In the future, this method could also be used in technical applications with electromagnetic waves. Water, ...

Picture a disk-shaped cavity, through which air is blown with just the right intensity to create a whistling sound. But this is no ordinary whistle. Instead of creating a standing wave ...

To return to the analogy from earlier, two people in a room conversing at the same volume with no obstacles between them can hear each other clearly as the sound waves move freely in both directions.

When placed against the mouthpiece of the instrument the air inside begins to vibrate too, forming sound waves. To make different notes the amount of air vibrating inside the instrument has to be ...