Firing ultrasound signals into rodent brains puts them in a torpor-like state. Scientists are wondering if it could be used on humans. When you purchase through links on our site, we may earn an ...

Sound and other waves usually propagate equally forwards and backwards. Researchers have now developed a method that prevents sound waves from travelling backwards without deteriorating their ...

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Researchers have found a way to make materials that are normally opaque to sound waves completely transparent. Their system involves placing acoustic relays at strategic locations so that sound waves ...

Scientists at ETH Zurich and the Swiss Federal Institute of Technology Lausanne have developed a device that directs sound waves in one direction without wasting energy. This breakthrough sound wave ...

It’s a question I’m sure was keeping you up at night: can you make an object spin with a sound wave? The answer, generally speaking, used to be no. Now, though, mechanical engineers have taken a look ...

A sound wave is a vibration that travels through a solid, liquid or gas such as the air or water. A loud sound has a large amplitude, a high pitched sound has a high frequency. Musicians and ...