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Old 06-09-2008, 10:12 PM   #106 (permalink)
tedh1951
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Re: the myth of "fast air"

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Originally Posted by tedh1951 View Post
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BTW - standing waves are a function of supersonic airflow - that is air travelling higher than the local speed of sound and the shock wave that stands at the point where the speed of sound is achieved (a bit of a simplification). So this too is probably either a misnomer or some other concept misunderstood or "poorly" described - we certainly don't want, and are highly unlikely to achieve supersonic airflow with our breath. A sneeze, for example, gives an output of about 120 mph (from memory). .......
Sorry All, mind in neutral again, standing waves occur in normal airflow patterns like in musical instruments, car and bike exhaust pipes and so on. Shock waves exist in supersonic airflows.
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