Alaskan
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This also brings up the old question, if a tree falls in the forest and there's no one there to hear it, does it make a sound? I have a feeling the sound may be different.
That question has always bothered me. Why wouldn't it make a sound? The universe doesn't need our consent to exist. The only thing I can think of that would change is maybe some sound wave absorption by our bodies. But that wouldn't cause a noticeable change.
That question has always bothered me. Why wouldn't it make a sound? The universe doesn't need our consent to exist. The only thing I can think of that would change is maybe some sound wave absorption by our bodies. But that wouldn't cause a noticeable change.
If the tree falls in the woods, and there's no one to hear it, it DOES make a sound....it just doesn't make a noise.
Sound is the wave propagated, noise is the perceived sound....
So it makes a sound, but, no noise.
For a less 'mystical' and "hocus pocus" explaination see:Superposition, Interference and Decoherence - Quantum Theory and the Uncertainty Principle - The Physics of the Universe
and Quantum superposition - Wikipedia, the free encyclopedia
If you ask me there's an awful lot of hocus-pocus involved in quantum mechanics.
If you ask me there's an awful lot of hocus-pocus involved in quantum mechanics.
But if we're not there to hear the sound it could be different because no one is there to observe it or hear it.
The idea of Schrödinger’s cat also bothers me. What if a human were sealed in a box alive? Could they be both dead and alive as long as the box was sealed until or if someone opened it to observe them?!:scared::wtf:
So it's always quiet if there's no one there to hear it? Your making that up! Well I guess in the forest there would at least be birds/animals/bugs to hear and observe it so there would be sound and noise, or do their observations have less effect on their environment than ours do?
Alan
A falling tree does make a sound when it falls even if there is not a human near by.
A deaf human will not hear it but they sure will feel the ground shake if they are close enough to it
A bit of a tangent here but I have a teleport and it has what appears to be ancient mystical markings on it from maybe an Olmec, Mayan, Incan or Aztec civilization but I can't get the dang thing to work!!
No, I'm saying that sound is the propagated wave, and that noise is what we call our perception of that wave.
So, if something sends a vibration through the air (The propagated wave)....that sound is there even if no one detects it.
If it is detected, sound can be called noise....therefore, if the tree falls, and someone is there, there is both sound, and, noise.
If no one is there to hear it...there is sound, but no noise.
A falling tree does make a sound when it falls even if there is not a human near by.
A deaf human will not hear it but they sure will feel the ground shake if they are close enough to it
And correct, things make sounds regardless of audience.
The sound needs to be heard to be called noise though.
Those waves or vibrations could possibly be in a different state or interact differently with the surrounding environment if not observed or felt or heard. That idea does seem too strange to believe though. There is more to quantum theory that needs to be proven one way or the other.
Alan