if a tree falls in a forest ...

Re: if a tree falls in a forest …

Precisely; you need an ear for the vibrations to be transformed into what we know and recognise as “sound”.

Re: if a tree falls in a forest ...

^ like usual, everyone have their own prospective on this unwinnable debate. Or any debate that is related to this.

Re: if a tree falls in a forest ...

I would have said it doesn't...but then I think of the pre-ancient era, the cretaceous period, when humans were not there altogether...things did happen without human senses present or even human observation or imagination...

Re: if a tree falls in a forest ...

Tree fall. No sound.
Cause compression in air. No sound.
If no human around to interpret compression in ear. No Sound.
If human around to interpret compression in ear. Sound
If deaf human around to not intepret compression in in ear. No sound.
If TLK around getting fresh with guppans, Niksik gets out chittar. Big sound.

Re: if a tree falls in a forest …

So am I allowed to act fresh with male guppies?

How u do’in Cheegs :faizy:

Re: if a tree falls in a forest ...

No one bothered to reply to my post #8 so let me ask it again

In sub atomic world, an electron jumps into an orbit from a hybrid state only when an observation is made (I might be describing it in a very lame way but in nutshell this is what happens). When an act can rely on observation (in micro world) to happen, why cant it be true for the macro world?

Re: if a tree falls in a forest ...

I agree with you......I think.
No instrument to measure sound waves means no sound is made.

But let me ask you this.......is there ever an instance in the sub-atomic world when an electron jumps into orbit from a hybrid state even when an observation is not made? If yes, then has that electron actually jumped into orbit since no observation was made?

Re: if a tree falls in a forest ...

Theory tells us that elctron jumps into an orbot only when an observation is made. Can an electron jump into orbit from a hybrid state even when an observation is not made, no one can tell - because to tell, you have to observe.

Re: if a tree falls in a forest ...

That reminded me of that famous promo line of the movie 'Aliens'

In space, no one can hear you scream.

Re: if a tree falls in a forest ...

Yes it would make sound. Using word 'does' in question means it could automatically be a fact!

First part of question already tells us that there is something there, to be heard!

Regarding making sense part in the last, does not mean the sense will be made or even be lacking. 'Sense' most commonly depends on both parties.

1- One making sense. (we)

2- Other able to sense. (you) :D

Hence the example of sense is different than hearing a **sound **in two ways,

1- Sound does not require to be heard to be called sound. it is a physical chracterstic, but 'sense' is not material or physical charactersitic.

(Not pertinent to the topic, but sound wave can be inaudible altogether if vibration is outside the range of ability to be heard)

2- Sound requires one factor ( its generation) but sense requires two factors.

Re: if a tree falls in a forest …

Sorry I just read this.

I differ. Part of my answer lies in above post.

For physical phenomenon, observation is not necessary.

Define hybrid stage. Sound merely is vibration energy in air or in any medium like water. It would exist (and slowly will dissipate) regardless it is 'observed or not.

Observation does not create physical phenomenon.

Physical phenomenon do not need observation. But not all observable phenomen are physical.

Physical phenomenon ‘can be’ observed/measured.

No true.

Physical phenomenon are present regarless they are observed or measured.

Heat/temperature exists, regardless you measure it with a thermometer or not.

A rock will still be ‘heavy’ regardless it is weighed or not.

Ocean makes sound regarless it is heard or not.

etc. etc.

Your electron question makes sense. (pun intended :hehe:)

Re: if a tree falls in a forest ...

But to be able to tell is different thing. Existence of something is other.

People believe on God for various reasons. No one has seen him. Does this mean he is not present? OK. Maybe not a physical example.

Let's take electron example.

We with human eye limitations, can never see electron but believe on it due to some other observable properties, does this mean electrons do not even exist?

P.S. The reason why we cannot see electrons is becasue of the ability to see anything depends on the ability of photons light wave and its wavelength be shorter than the wavelength of electron movement. But in fact the wavelength of photonic wave is larger than electronic movement and hence, photons are not relected from electrons to come back to our eyes. This does not mean electron does not exist however.

One can unerstand this by another example.

Ultrasound is commonly done in medical practice and other places like radars.

Smaller the wavelength of sound wave, better detail of pictures are made because more sound waves hit smaller body structures and come back to make a picture on TV.

If sound wavelength is larger than body part, that body part cannot be seen since sound wave goes around it and not be relected back to make a picture. Does not mean the structure does not exist!

In radars, if the wavelength of sound wave is hypothetically larger than airplane, the radar may miss the airplane!

Re: if a tree falls in a forest ...

But if it is only a "theory" that tells us so then it can be asserted that a corollary theory may exist suggesting that an electron may already be in orbit prior to the observation......no?

Re: if a tree falls in a forest ...

I think that the theory is already put to test many times and confirmed itself.

Re: if a tree falls in a forest ...

LOL.......but if it confirmed itself then is it really confirmed?
was someone there to see it confirm itself?

I'm just jokin' wid ya.

Re: if a tree falls in a forest ...

aap ke joke ne dimagh ka dahi bana diya

Re: if a tree falls in a forest ...

Orcourse there will be sound, whether someone hears it or not. Ena tey menooN vi pata hai

Re: if a tree falls in a forest ...

hmmmm......I feel like having kaRhi tonight.

Re: if a tree falls in a forest ...

The sound will be heard by the hundreds of animals and surviving creatures around... Nature itself has a degree of measuring dimensions.... A tree wall definitely effects its surroundings whether a human to be present or not... dosent mean no sound has been observed......

Re: if a tree falls in a forest ...

Lets say if there are no living creatures in the vicinity, then?