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 ...

(Credit: The Action Lab) Using a fairly beefy speaker ... Using an air vortex cannon to focus the sound waves from the bass reflex port, it ‘wiggles’ the flame out in a matter of seconds ...

They use sound waves. Many technological innovations have ... The YouTube channel The Action Lab explains why this ...