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sound barrier:see aerodynamicsaerodynamics,
study of gases in motion. As the principal application of aerodynamics is the design of aircraft, air is the gas with which the science is most concerned. Although aerodynamics is primarily concerned with flight, its principles are also used in designing automobile
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Any solid obstacle that is relatively opaque to sound that blocks the line of sight between a sound source and the point of reception of the sound.
sound barrier[′sau̇nd ‚bar·ē·ər]
Any solid obstacle which is relatively opaque to sound that blocks the line of sight between a sound source and the point of reception of the sound.
A so-called barrier to flight encountered by an airplane designed for subsonic speeds when it reaches transonic speeds and meets the turbulence incident of diverse degrees of compressibility. An intense buffet and the loss of controls to a varying degree may also be experienced at this speed. Also called a transonic barrier.
a hypothetical barrier to flight at or above the speed of sound, when a sudden large increase in drag occurs