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 ...

By combining ultrasound with a concept called nonlinear acoustics, you can create sound that stays silent until it reaches a ...

As an airplane flies faster than the speed of sound, it "pushes" on the sound waves in front of it. But sound waves obey the speed limit—they can't travel faster than the speed of sound.

A technology has been developed that emits two types of ultrasonic waves that are inaudible to the human ear, bends the sound waves, makes them intersect, and delivers an 'audible sound' only at ...

It is not just an ordinary camera—it can capture sounds and convert them into images ... Read also: Smartphone apps use sound waves to blow out candles MBDA pioneers AI-integrated spear missile ...

Musicians and scientists record and analyse sounds using wave traces. Sometimes you can see the source of the sound vibrating, like a guitar string, drum or a loudspeaker, but other times it’s ...