... in the forest and there is no one to hear it, does it make a sound?
If a tree falls...
- Thread starter UriBentMySpoon
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Of course!
When humans were not on the earth, when dinosaurs roared, they still made a noise!
When humans were not on the earth, when dinosaurs roared, they still made a noise!
What is "a sound"?
The falling tree would start a series of pressure waves in the air around it. An ear would interpret those waves as sound.
A microphone would interpret them as vibrations on a pick-up and would convert them to an electrical signal.
A camera is not designed to pick up pressure waves so would "hear" nothing.
The falling tree would start a series of pressure waves in the air around it. An ear would interpret those waves as sound.
A microphone would interpret them as vibrations on a pick-up and would convert them to an electrical signal.
A camera is not designed to pick up pressure waves so would "hear" nothing.
Who brought the camera into the forest? and what pictures were taken?
Where was Prince Harry?
Andy
Where was Prince Harry?
Andy
Correct. There isn't any sound unless there is someone/something to recieve it.
But in space no-one can hear you scream...
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It still makes a noise, regardless of the presence of ears.
J
joinerjohn
Just because there's no one there to hear it, doesn't mean in doesn't make a sound. The laws of physics have to be obeyed.
Without hearing it "sound" is just a pressure wave. It takes an ear/listening device to convert it into sound.
J
joinerjohn
Ahh, I see, Let me ask you this question then,,, If everyone in the world was blind,, Would there still be light
Light is I suppose different. It exists in photons. It is not merely a vibration of molecules that you then interpret. What you reckon?
C
calorific
This is quite interesting. Being red/green colour blind what I see as one colour is presumably not the same as what you see - extrapolating out one could argue that we all see things slightly different from each other.
On the specific subject of sound, we all know of the occasional person who is "pitch perfect" which would seem to imply that most people are not. So the interpretation of sound itself presumably differs from one person to another.
On the specific subject of sound, we all know of the occasional person who is "pitch perfect" which would seem to imply that most people are not. So the interpretation of sound itself presumably differs from one person to another.
perception of colour is a very weird thing. There are tribes in the world who simply don't 'see' some colours, they don't have a word for 'red'. And there is actually nothing physically different in their eyes between them and us.
J
joinerjohn
Remember too that visible light, is only a small part of the light spectrum. Do we therefore say that infrared or ultraviolet doesn't exist simply because we can't see them ?
