trumpet the sound from the trumpet comes from a vibrating column of air created by buzzing lips of the trumpeter A sound wave is a longitudinal wave. When an object vibrates it produces a ...

The device makes sound waves scatter around an object making it invisible to sonar detection. In order to achieve this, the researchers used a "smart" material with special properties. The ...

Portable compact size of the ultrasound machines has evolved in recent years to compact handheld machines. These small and ...

Scientists have found a clever new way of measuring ocean warming, using sound waves from undersea earthquakes. The researchers say the "hack" works because sound travels faster in warmer water.

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When archaeologists blew into these creepy kazoos, they emitted an unearthly, banshee-like shriek similar to a haunted ...