If a tree falls in the woods and no one is there does it make a sound???
489870
Only if a bear farts.....
99064
If the tree is dead and the branches are falling off and the person could have expected that the tree would fall then they are responsible for the damage, otherwise they are not responsible.
847790
use one of those canned air boat horns- they should hear it then\n\nhave you tried unplugging your phone (if its a land line)
956289
Yeah, it will produce a compression wave in the air - which is the definition of sound.  It doesnt matter if someone is there to hear it or not.  A sound is still made.
1085273
I think you're missing the point of the question, which is how we can know something for sure without having sensed it. (which sort of evolved later into the question of how we can know something for sure, even if we do sense it).\nanyways, vis a vis the way you posited the question, it depends on what you mean by "sound". If you consider a soundwave a sound then yes, it makes a sound; if you consider sound only that which we hear, then no, it didn't make a sound. \n\nin other words, it appears your question is really: "If a tree falls in a forest and noone hears the sound it made, did it make a sound?" vs. "If a tree falls in a forest and no one hears it, did anyone hear it?"
185352
Of course it does. Just because there is no one around doesn't mean that it doesn't make a sound.
1325
The answer to this depends on if you are a physicist or a biologist! A physicist would say "yes" because to him/her sound is vibration of air molecules which will occur when a tree falls. \n\nA biologist, however would say "no" because sound is a perception in the brains of living things capable of perceiving it. The perception is a brain's interpretation of the nerve signals sent to it as a result of vibrations causing the eardrum to vibrate, then the ossicles in the middle ear, then the fluid in the cochlea, then the hair cells etc. There is no sound until a brain perceives it, only vibrating air.\n\nEven if the vibrations are recorded, there is still no sound until the recording is played and heard/interpreted by a capable brain.
232593
only when no one is looking!
65418
In the vast universe of cause and effect, yes, the tree does make a sound. It makes a sound that is heard down to the Earth's core to the vast reaches of space and into the eardrum of a snarkvorce, which is to say a creature capable of transmitting waves into melodies that in turn, turn into frequencies that can only be decifered once someone goes through a black hole and into another dimension.
1126178
Of course it would. There would just be no one around to HEAR it. That doesn't mean it wouldn't make NOISE! Gah, I hate when people ask this question! (No offense!)
258650
Scientists have been dealing with the problem of natural tree falls (and the sound they make--or don't make) for quite some time and have drawn some rather surprising conclusions. \n\nIf a tree falls and there is a person around the sound is easily recognized. \n\nIf a tree falls in the forest and there is nobody nearby, the sound that it makes is very different and often not recognized as the sound of a tree falling. \n\nEither way, there is a sound.\n\nEven though plants do not show any changes to the naked (or lensed) eye, when a human is in their presence systemic biological changes have been discovered that have grave effects on plant life when a person is within 300 meters. This effect is called "human stress syndrome".\n\nApparently, when a tree is about to fall, if it senses a human nearby the biological stresses of human presence cause the cell walls in the plant to become brittle and it is the cell brittleness responsible for the familiar sound we know as that of a tree fall. The cell brittleness also has significant effects to the quality of the lumber, making it much more suitable for use in construction (see below).\n\nThrough the miracle of recording tape, we are able to provide a sound recording of an actual tree falling without human presence. \n\nCLICK HERE: http://www.getodd.com/stuf/treesound1.wa... to hear what a tree falling in the forest when there is nobody around to hear it sounds like.
994520
How do you define sound? The tree falling in the forest creates a pressure wave that would be heard by a listener as a sound. Does your defintion require a listener? The pressure wave exists whether or not there is one.  Merriam-Webster defines sound as:\n\n1 a : a particular auditory impression : TONE b : the sensation perceived by the sense of hearing c : mechanical radiant energy that is transmitted by longitudinal pressure waves in a material medium (as air) and is the objective cause of hearing
712307
According to CNN.com here it is:\n\nTwo hunters are out in the woods when one of them collapses.\nHe doesn't seem to be breathing and his eyes are glazed. The other guy takes out his phone and calls the emergency services. \n\nHe gasps: "My friend is dead! What can I do?" The operator says: "Calm down, I can help. First, let's make sure he's dead." There is a silence, then a gunshot is heard. Back on the phone, the guy says: "OK, now what?"
1004921
Sound is a sense. The tree's fall causes vibrations, but, unless something is around to interpret those vibrations as sound, it is never "heard."
124261
No. And here's why: \n\nThe falling rock will create the compressions and rarefactions of air that are the external stimulus for the auditory receptors. \n\nSound, however, is more than just those compressions and rarefactions; for there to be a perception of sound there must be an organism to hear it. \n\nThis organism, in order to be able to hear a sound, must have a functioning auditory system that receives the external stimulus capable of transducing the stimulus from physical into electrical energy and have the proper neurotransmitters that will turn that electrical energy into chemical energy able to stimulate neurons. It must have uninjured neurons in the proper places that will receive that chemical energy and transform it back into electrical energy and back to chemical energy using the proper neurotransmitters to stimulate the next neurons in the chain. The organism must have all these neurons going to the proper areas of the brain that will receive the energy and impute meaning onto it from prior experience. This prior experience is why we (as verbal humans) label as sound the sensations coming from the compressions and rarefactions that hit our ears and go up the chain. Other organisms will not label the sensation as sound, but will behave in other appropriate manners indicating that they heard the sound.\n\nSo without an organism, there can therefore be no sound.
669771
Try searching for nature sounds.
1056075
it does make sound!!!!........ how stupid iz that \nWt a question >>>>> so weird !!!