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Arts & Humanities > Philosophical Concepts If a tree falls in the woods and there's no one to hear it

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The tree falling in the forest is not a great metaphysical question, it is simple physics. What we interpret as 'sound', in our mind, are the vibrations of our eardrums. What causes our eardrums to vibrate? It is certainly not 'sound', as all 'sound' exists solely on 'our side' of our eardrums! When a tree falls, it produces a 'shock-wave' (standing pressure wave) in the air (hence, air, or another medium, being necessary to carry what appears as 'sound', the 'waves'...). This 'pressure wave' is absolutely silent. It is merely a 'vibration' in the air (caused by the tree falling, vocal cho...

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