Researchers created sound that can bend itself through space, reaching only your ear in a crowd
By combining ultrasound with a concept called nonlinear acoustics, you can create sound that stays silent until it reaches a ...
Simon Fraser University6y
SOUND PROPAGATION
The TRANSMISSION of acoustic energy through a medium via a SOUND WAVE. See: SOUND, SPEED OF SOUND ... of the distance from the source (note increasing cone area), and from a line source (right) where ...
BBC2y
Introduction to sound waves
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 ...
BBC2mon
Frequency, wavelength, amplitude and wave speed
The amplitude (\(a\)) of a wave is the distance from the centre line (or the still position ... For water waves and sound waves the unit hertz is usually good enough but radio and TV waves ...