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Originally Posted by d*d
A tree falling in a forest will produce waves in the air, unless someone hears it then those waves remain silent so no it doesn't make a noise.
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That all depends on whether you define sound as "the perception of vibrations in a medium by a being's sensory organ" or whether you define sound as "vibrations in a medium".
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"Few people are capable of expressing with equanimity opinions which differ from the prejudices of their social environment. Most people are even incapable of forming such opinions." - Albert Einstein
"Wise men talk because they have something to say; fools, because they have to say something." - Plato
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