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Re: Standing waves get their own thread - lucky little blighters!
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Quote Ethan Winer:
John,
> Standing waves are caused by equal frequency waves traveling in different directions, including opposite <
... the more I realize that "misappropriate" is the correct word to use when discussing standing waves as described by acousticians. ...
In a true standing wave situation the waves literally are standing still for their entire length.....It's only at the precise null center that anything is standing still. So there really is no such thing as an acoustic standing wave except for at the exact null point where the deepest cancellation occurs.
--Ethan
I do agree: A creative concept.
At that exact null point is the highest particle velocity (so anything is certainly not standing still).
The deepest cancellation (as you call it) is the crossover point between relative over and under pressure versus the ambient pressure. This is the point of maximum kinetic energy and kinetic means movement which is the opposite of standing still.
But I accept, acousticians are burdened by knowing acoustics which is a very limiting factor.
In your concept does the sound stop somehow?
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