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If a leaf falls in the forest and no one hears it does it make a sound?
Wiki User
∙ 9y ago
Yes.
By definition, sound is: "mechanical vibrations transmitted through an elastic medium" (dictionary.com). Noise doesn't need to be perceived to be defined as "sound" since it is a mechanical entity.
However
The existence of the sound cannot be categorically proven unless heard (observed) or recorded, even though under the usual physical laws, it would be expected to occur.
Wiki User
∙ 9y ago
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