One of the physical properties of sound is its wave-like behavior. Diffraction, refraction, and interference are ...

A team of researchers at University College London has developed a way to keep objects levitated by sound waves airborne when other objects interfere with the levitation path. In their paper published ...

The Galaxy Express 999 runs into the darkness of space. If it were a train, you could point to the tracks it passed. But what ...

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, ...

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Noise-canceling headphones do not just drown out the world by blasting loud music. Instead, they use a clever scientific process called active noise control to create silence. Built-in microphones ...