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soundbarrier
sound barrier
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The answer SOUNDBARRIER (sound barrier) has 15 possible clue(s) in existing crosswords.
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The word SOUNDBARRIER (sound barrier) is NOT valid in any word game. (Sorry, you cannot play SOUNDBARRIER (sound barrier) in Scrabble, Words With Friends etc)
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Definitions of sound barrier in various dictionaries:
noun - the increase in aerodynamic drag as an airplane approaches the speed of sound
SOUND BARRIER - the increase in aerodynamic drag as an airplane approaches the speed of sound
SOUND BARRIER - The sound barrier or sonic barrier is the sudden increase in aerodynamic drag and other undesirable effects experienced by an aircraft or other objec...
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Possible Jeopardy Clues |
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In 70-degree air, a plane traveling at about 1,130 feet per second breaks it |
In 1935 Robert Goddard was the first to have a liquid fuel rocket break this "barrier" |
On May 18, 1953 pilot Jacqueline Cochran became the first woman to break this barrier |
Sound barrier might refer to |
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The Sound barrier or sonic barrier is the sudden increase in aerodynamic drag and other undesirable effects experienced by an aircraft or other object when it approaches the speed of sound. When aircraft first began to be able to reach close to the speed of sound, these effects were seen as constituting a barrier making faster speeds very difficult or impossible. The term sound barrier is still sometimes used today to refer to aircraft reaching supersonic flight. * In dry air at 20 °C (68 °F), the speed of sound is 343 metres per second (about 767 mph, 1234 km/h or 1,125 ft/s). The term came into use during World War II when pilots of high-speed fighter aircraft experienced the effects of compressibility, a number of adverse aerodynamic effects that deterred further acceleration, seemingly impeding flight at speeds close to the speed of sound. These difficulties represented a barrier to flying at faster speeds. In 1947 it was demonstrated that safe flight at the speed of sound was achievable in purpose-designed aircraft thereby breaking the barrier. By the 1950s new designs of fighter aircraft routinely reached the speed of sound, and faster. |