The human ear detects sound. Sound waves enter the ear canal and cause the eardrum to vibrate. Three small bones transmit these vibrations to the cochlea. This produces electrical signals which ...

Atmospheric air is that medium by which by far the greater number of sound-waves are conveyed to our ear, since it is only exceptional that this happens through solid bodies which are in contact ...

Sound waves can reflect off surfaces. We hear reflected sound waves as echoes. Hard, smooth surfaces are particularly good at reflecting sound. This is why empty rooms produce lots of echoes.

It should be remembered that a barrier's performance can be severely reduced by temperature and wind gradients. Diffraction of a low frequency sound wave around a barrier. Note that the barrier does ...

The lowest note detectable by humans has a frequency of one-twentieth of a second. The sound waves were extracted radially, ...

Researchers at ETH Zurich have managed to make sound waves travel only in one direction. In the future, this method could ...