why we have two ears?
By CEN7777
@CEN7777 (855)
India
December 7, 2007 10:11am CST
Our brain interpret sound waves based on three characterstics
of the waves; wavelength, amplitude and complexity. wave legth accounts for pitch, amplitude accounts for loudness and complexity accounts for timbre,violin or viola.Than why do we have two ears?
1 person likes this
7 responses
@sunchild2000 (511)
• Romania
7 Dec 07
we have two ears just to hear and sense better the source of the sound. If a sound comes from the left, we will hear it better with the left ear. Our body is so designed that we can guess where are things, sounds coming from. knowing the space around you and sensing all the actions is very important in our and nature's life.
1 person likes this
@roniroxas (10560)
• Philippines
10 Dec 07
i remember my first born when he was just five years old he asked me why do we have two hands, two feet, two eyes, two ears.... i just answered well it is all in pair. God loves us so much that he wants us to move easily around. but we only have one heart so we can be honest one brain to be honest
1 person likes this
@Buchi_bulla (8298)
• India
8 Dec 07
We have two ears because, we hear from one ear, good things are spread through our mouth to all, bad things are left out with the other ear, without anybody knowing about it. This is just for the sake of it thinking loud. Otherwise we have two ears to know the full impact of the sound.
1 person likes this
@lovelydame3000 (1577)
• India
16 Dec 07
Hi Mahesh! That's a nice question.According to the Roman philosopher Epictetus, “We have two ears and one mouth so that we can listen twice as much as we speak.” Among the advantages of having input from both ears is the ability of the one nearest to a stimulus to pick up and focus on that specific sound rather than others. This is known as the “better ear” effect.Our two ears act like radar antennae to register signals coming from multiple directions. The complex structures of each ear process the received signals and pass them to the brain where we create meaning from our acoustic environment. Another benefit of having input from both ears is that specialized neurons in the auditory pathway are sensitive to cues that help us identify the location of a sound source, a phenomenon called binaural hearing. These important cues include differences between the two ears in the arrival time and intensity of sounds from various directions. For instance, a sound that arrives from the right will reach the right ear first and have greater intensity in the right than the left ear. The reverse is true for sounds arriving from the left.Our two ears act like radar antennae to register signals coming from multiple directions. Some of the advantages of two, properly functioning ears are excellent sound localization skills, much easier speech understanding in noisy situations, the richest sound quality and an accurate judgement of loudness. Having two ears is useful for redundancy : if you lose one, you can still hear, so there is a survival advantage to having two ears. So I think that answers your question.
@drannhh (15219)
• United States
7 Dec 07
I like to have a spare one just in case! But if you ever had a head cold or if you swim a lot you know that sometimes people get an ear infection. Ouch, those hurt, but they also change your sense of balance, which when off can result in dizziness and nausea. Hearing is important, but I think the real reason we have two ears is to preserve our balance.
1 person likes this
@newzealtralian (3930)
• Australia
8 Dec 07
I think we have 2 ears so that we can know what direction a sound comes from.
@poohgal (6845)
• Singapore
16 Dec 07
God has a purpose for everything. He created us and gave us 2 ears and 1 mouth for a purpose. The purpose is to listen more and talk less. It's harder to be a good listener than a good speaker. Most of us love to talk and can talk non-stop. But how many of us can really sit down and listen to others?