A Sound is different from other sounds only to the extent that it is sped up or slowed down. All sound sounds alike; every bellow ends as a whistle; a distended whistling blasts like a bellow.
Space is completely silent
Sound is the sense most assaulted in the modern age — Our mechanical and sanitary age grants mercy to our sense of smell and compensates by assailing our sense of hearing.
Sound is a sensory field that totally resists a holding action, resists stabilization.
Sound is able to travel quicker in water than in air
Sound is able to travel up to 15 times faster through steel than air, at speeds up to 19,000 feet per second
Sound is contrasted with vision in that sound's ephemeral invisibility obstructs critical engagement, while the apparent stability of the image invites criticism.
Sound is denotative of distance and temporality in a way that sight is not. Rather than an immediate inner illumination that emanates outward in sight, hearing proceeds sequentially from the external to the internal. It is intimate without being immediate.
Blue whales are able to produce the loudest sound of any animal. At 188 decibels, the noise can be detected over 800 kilometers away
Cats are able to hear ultrasound
Pistol shrimp can make a noise loud enough to break glass.