Sound Barrier
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In aerodynamics, the sound barrier usually refers to the point at which an aircraft moves from transonic to supersonic speed. The term came into use during World War II when a number of aircraft started to encounter the effects of compressibility, a collection of several unrelated aerodynamic effects. By the 1950s, aircraft started to routinely "break" the sound barrier.Some common whips such as the bullwhip or sparewhip are able to move faster than sound: the tip of the whip breaks the sound barrier and causes a sharp crack literally a sonic boom. Firearms since the 19th century have generall...
In aerodynamics, the sound barrier usually refers to the point at which an aircraft moves from transonic to supersonic speed. The term came into use during World War II when a number of aircraft started to encounter the effects of compressibility, a collection of several unrelated aerodynamic effects. By the 1950s, aircraft started to routinely "break" the sound barrier.Some common whips such as the bullwhip or sparewhip are able to move faster than sound: the tip of the whip breaks the sound barrier and causes a sharp crack literally a sonic boom. Firearms since the 19th century have generally had a supersonic muzzle velocity. However, the sound barrier may have been first breached some 150 million years prior to the inventions of these implements.
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