Go Back  PPRuNe Forums > PPRuNe Social > Jet Blast
Reload this Page >

A puzzler....

Jet Blast Topics that don't fit the other forums. Rules of Engagement apply.

A puzzler....

Old 26th Jun 2001, 21:26
  #1 (permalink)  
Professor TailSpin
Guest
 
Posts: n/a
Cool A puzzler....

Had an interesting discusion with some of the guys in the office today, and one of the things we were debating was:

'If a tree fell in a forest, but nobody was around, would it make a sound?'

Many different opinions were put forward, but the best one, I think, was:

'Sound is the motion of air passing over the eardrum and if there is no-one there, then the tree does not make a sound when it falls'

Agree / Disagree with this? Enlighten me (I'm bored today at work!)
 
Old 26th Jun 2001, 21:47
  #2 (permalink)  
Grainger
Guest
 
Posts: n/a
Unhappy

Prof:

I think we've got enough threads on here already which boil down to arguing over the definition of a word.

Look at Ice-hole with his definition of 'decent'.

We all know what happens: the air molecules jiggle about and so on. If your eardrum is in the way then it wiggles too.

If you want to define 'sound' as the movement of the air then fine. If you want to define it as the perceived sensation also fine. All we are doing is discussing the meaning of a word.

We learn nothing of substance this way.
 
Old 26th Jun 2001, 23:30
  #3 (permalink)  
Ed Winchester
Guest
 
Posts: n/a
Question

Grainger,

Are the moderator of Jet Blast? Lighten up - if the thread doesn't pull your chain, then ignore it - it'll soon disappear.

"We learn nothing of substance this way" - you are in the wrong place, chap. Perhaps you should go back to http://www.pompous.nob

Edited, 'cos I forgot about the question.

Prof, I reckon that if a tree falls down, then the air molecules are disturbed. Just because the vibrations are not perceived by a human ear, doesn't mean it didn't happen. Or something.

[This message has been edited by Ed Winchester (edited 26 June 2001).]
 
Old 26th Jun 2001, 23:51
  #4 (permalink)  
tony draper
Guest
 
Posts: n/a
Talking

I once witnessed a high altitude thermo nuke test.
We didn't hear a thing.

Well, beats the sh*t out of falling tree's.
 
Old 27th Jun 2001, 00:04
  #5 (permalink)  
Grainger
Guest
 
Posts: n/a
Cool

Ooo-er ! 'scuse me for having an opinion.

So is a leaf green if there's no one there to see it ?
 
Old 27th Jun 2001, 00:14
  #6 (permalink)  
Velvet
Guest
 
Posts: n/a
Post

Well, it seems a bit like Schroedinger's cat - the observer affects the experiment.

Not if they are a red or yellow leaf Grainger
 
Old 27th Jun 2001, 00:16
  #7 (permalink)  
126.9
Guest
 
Posts: n/a
Wink

Darn good question! I always wondered; what colour is a carrot once the lights are turned out?
 
Old 27th Jun 2001, 00:18
  #8 (permalink)  
Send Clowns
Guest
 
Posts: n/a
Question

Where do you find a forest with nothing around to hear? Humans are not the only creatures available!

------------------
'Me here at last on the ground, you in mid air'
 
Old 27th Jun 2001, 00:19
  #9 (permalink)  
Davaar
Guest
 
Posts: n/a
Post

Professor, Grainger, Hearingmen, Colourperceivers, and all, welcome to empirical philosophy. You tread a well-worn path. Your next step is to buy a popular edition of Bishop Berkeley's works. Look for "proofs of God". Enjoy.
 
Old 27th Jun 2001, 00:35
  #10 (permalink)  
tony draper
Guest
 
Posts: n/a
Talking

Isn't there some kind of pseudo scientific theory concerned with this type of thing, The Strong Anthropic Principle , something like that?.
I believe this states that sub atomic particles do not exist untill we start looking for them or that tree rings have no reallity untill we saw said tree down and look at them.
So we talkin monkeys create the universe we live in by observation.
Daft I calls it,
 
Old 27th Jun 2001, 00:40
  #11 (permalink)  
Grainger
Guest
 
Posts: n/a
Lightbulb

What's been bugging me is that little light bulb inside the fridge.

You know, the one that comes on when you open the door and goes out when you shut the door.

...or does it ?
 
Old 27th Jun 2001, 06:30
  #12 (permalink)  
pigboat
Guest
 
Posts: n/a
Question

If you shoot a mime, do you have to use a silencer?
 
Old 27th Jun 2001, 07:54
  #13 (permalink)  
Capt Vegemite
Guest
 
Posts: n/a
Wink

Last night I played a blank tape full blast.The mime next door went nuts.
 
Old 27th Jun 2001, 08:40
  #14 (permalink)  
ScopeDope
Guest
 
Posts: n/a
Post

What about if you leave a tape recorder going and retire out of ear shot ?

What will it record ? Have you influenced the experiment? Did the sound not 'happen' until you played the recording ?

Do you except the principal that you need 'self-awareness' to percieve ? If so what am I watching that I recorded last night off the TV ? I wasnt there but something got taped. Or was it not taped until I pressed play ?

Does this thread exist if no one is looking ?

mmmmmmm......
 
Old 27th Jun 2001, 10:04
  #15 (permalink)  
Cunning Artificer
 
Join Date: Jun 2001
Location: The spiritual home of DeHavilland
Age: 72
Posts: 3,107
fish

Carry on Scope, you're getting the hang of it. (Now how the hell did I imagine a username like that one?)

The real question is that if there is no-one there to hear it, can a tree fall?

**********************************
Through difficulties to the cinema
Blacksheep is offline  
Old 27th Jun 2001, 10:05
  #16 (permalink)  
Icarus
Guest
 
Posts: n/a
Post

It's all very simple.

NOTHING EXISTS UNTIL IT IS OBSERVED!
&
YOU CAN GET SOMETHING FROM NOTHING!
 
Old 27th Jun 2001, 14:04
  #17 (permalink)  
Velvet
Guest
 
Posts: n/a
Post

Obviously, Icarus felt that no-one would hear him unless he shouted

This begs the question why did the tree fall in the first place - did it jump or was it pushed?


 
Old 27th Jun 2001, 18:53
  #18 (permalink)  
golden_hands
Guest
 
Posts: n/a
Question

Standing in the forest with your ears plugged and covered. The tree falls but you don't hear it. Question: Did the three fall? How come? You didn't hear it!!
 
Old 27th Jun 2001, 19:13
  #19 (permalink)  
Tricky Woo
Guest
 
Posts: n/a
fish

Schroedinger used his 'Moggie in a Box' example as a way of conveying the strange quantum behavour of atomic/sub-atomic particles. He didn't see it a serious description of reality on the macro level. Unfortunately, a load of pseudo-philosophical nonsense has since arisen that probably causes Schroedinger to rotate, rapidly in his grave.

Serve him right.
 
Old 27th Jun 2001, 20:39
  #20 (permalink)  
Grainger
Guest
 
Posts: n/a
Post

I feel sorry for the poor s0d who has to open the box and find out...

If he's still alive, Mog's not going to be too pleased is he ? - so whoever opens the box is in for a serious slashing 50% of the time.

Or is that 50% of a serious slashing every time ??
 

Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.