technoguy

Sound is a disturbance of mechanical energy that propagates through matter as a wave. Humans perceive sound by the sense of [[hearing (sense)|i love u By sound, we commonly mean the vibrations that travel through air and can be heard by humans. However, scientists and engineers use a wider definition of sound that includes low and high frequency vibrations in air that cannot be heard, and vibrations that travel through all forms of matter, gases, liquids and solids.