If a tree falls in a forest but there is no one around to hear it, does it make a sound?

Thoughts are interesting bubbles that always hit us at the wrong time. If you are unaware of the point I am trying to raise, allow me to offer a couple of examples. When on the London underground, it is impossible to block the idea that will always smack you in the face when rocking slowly back and forth under the streets of London. "I could bomb this right now". It's in no way a threatening thought - I need to say now that i would never even dream of bombing anywhere - it's just a niggle in the back of the brain which says "It's been done before - if I wanted to - it would just explode" Is that normal? I don't know.

BACK TO THE POINT

My thoughts revolve around a common question that leaves many listeners glaring in confusion and anger only to ponder it for a while and leave in shame. "If a tree falls in a forest but there is no one around to hear it - does it make a sound?". You have no idea the time that I have spent (mostly in lesson time) constantly reviewing this humanity-infuriating question. Well, humanity - I have the answer for you - just don't ask me to recall any of my year 11 lessons.

If a tree falls in a forest and there is no one around to hear it, ladies and gentlemen, it does not make a sound. The tree merely produces vibrations - as does every other object in motion - as it both falls and hits the ground. A sound, by very definition is when these vibrations are changed in the ear so that they are audible for humans. If there is no one around to turn these vibrations into sounds - there is no sound. OH YEAH BITCHES. :P