how do we hear sounds?
361250
Well, the ear is naturally designed to collect, focus, and transmit sounds through a tiny and efficient conveyance system called the auditory pathway.\n\nsee how it works\nhttp://www.fi.edu/fellows/fellow2/apr99/auditorypath.html
1039090
heres the answer.. take some acid.. then you will see the sounds and hear the pictures.. then your ears will have three receptors and your eyes one.
102078
Yes there is sound. Don't confuse sound with 'hearing'. The speed of sound is given in ft/sec, varying with what it moves through.. There is no factor there for 'hearing'. If you turn on a flashlight at night and a beam is created, but there is no one there to 'see' it, light is still emitted; the beam is certainly there. It's the same for sound. Sound is a compresson/rarifraction wave moving through a medium. The wave is there, detected or not. Or take the case of radio electromagnetic waves. The wave is certainly propagated, even if no radios are turned on.
462406
Only a .wav file can be used unless you use some third party program.\n\nTo change the setting, goto your control panel, then 'sounds'.
682864
obviously in liquid. i have not tried to hear sound in liquid but you already know that we can listen the sound of train by putting our ear on the track while the train is very far and can't listen the same in air.\nSound is a wave and denser the medium faster the speed of wave.
1077088
Two ears.... acoustics. A blind or just blind-folded person can still sense depth and range from the sounds his two ears pick up. Try it, it's fun.
1159857
You should click on the arrow on your pop-up icon. It tells there about the sound.
861424
First, we must remember that sound is transmitted in the form of compression waves, or "longitudinal waves". In other words, the mechanism is through atoms or molecules (I will use the generic term "particles") bump into each other to transfer the energy. So, basically we have a series of elastic collisions where each particle bumps into the next, thereby transferring all of its energy.\n\nNow, the amount of energy being transferred is not dependent upon the frequency, but rather the amplitude of the sound wave. \n\nOn the other hand, the amount of POWER (energy per second) is related to frequency. The higher the frequency, the more often the particles bump into each other, so the more power is delivered.\n\nThe answer to your second question is that our skin cannot "feel" frequencies much above 100 cycles per second, probably less than that, due to its elasticity, it cannot resonate at higher frequencies. On the other hand, our eardrum is designed to vibrate at much higher frequencies, and in effect our ability to hear is a manifestation of our eardrum "feeling" the sound. Of course the eardrum itself is only a very small part of the process by which we hear sounds.\n\nHope this helps.
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?"
283927
yes, it makes a noise, but it doesnt make a sound.  A sound is something that someone hears
406388
I worked at a zoo for nine years and witnessed the birth of two calves.  In that time I never heard any make a sound.  I don't think they are mute but animals are known to be able to make sounds beyond our range of hearing.  Elephants for example can make sounds that can be heard only by elephants and communicate for many miles.
607713
The best instructional method probably depends upon the nature of the deafness. Is it the organ (anvil, hammer, etc...), the cortex, or hearing loss due to environmental factors? Some deaf people can hear pretty well via bone conduction, IF they know what sound is. ASL and common gestures are things we all should know. For example, if your deaf but hungry, you should lean your head back, open your mouth, and point down your throat.
470235
The previous poster is right.  It's particles in the air "vibrating" (caused by pressure differences) that enables you to hear.  That is why in space, which is a vaccuum, you cannot hear anything.  There is nothing to transmit those pressure differences to your ear.
1073680
What is sound? Air in motion. What is wind? Air in motion. If the air movement is high enough or vibrates at the right frequencies because of what it is passing through or around, we hear it. Most of the time, the intensity of the wind is too low to produce much sound audible to humans.
63729
yes, sound waves are caused by vibration; so it will make a sound whether anyone is around to hear it or not.
795375
Speakers bring sound/ music to life.\n\nMicrophones are the opposite. Sounds go into a microphone, then into a recording device.\n\nWhere do you find your computer speakers? Look at your monitor (the screen). There should be a pair of speakers on either side of the monitor.\n\nPop in a music CD then you should be able to tell where the sound comes from.\n\nIf you want to record with a microphone, do these:\n\nBuy a proper PC mic (from a PC shop). Connect it to your soundcard, then record. Please learn how to use it before attempting to record.\n\nGood luck.
290448
According to the Merriam-Webster dictionary sound is defined as, "1 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." According to this definition the sound MUST be perceived, therefore, if no one is around, the tree DOES NOT make a sound.