Supersonic

Technology / Aviation / Supersonic: Speed of flight at or greater than Mach 1.0: literally, faster than the speed of sound.

Ultrasonic

Technology / Home Audio / Ultrasonic: Having frequencies above the range of human hearing, commonly considered to be 20 khz. Not to be confused with 'supersonic,' which means faster than the speed of sound. Ultrasonic frequencies in the s MORE

Scramjet

Technology / Aviation / Scramjet: Acronym for supersonic combustion ramjet, in which combustion occurs at supersonic air velocities through the engine. MORE

Hypersonic

Technology / Aviation / Hypersonic: Speed of flight at or greater than Mach 5.0, exceeding SUPERSONIC. MORE

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