In order for a fire to sustain itself ... 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, as illustrated ...

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.

For the first time, MIT scientists have successfully imaged how heat actually travels in a wave, known as a “second sound,” through ... had a tank of water and made one half nearly boiling ...