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Thread: My thread for One day.

  1. #1 My thread for One day. 
    precious sir ir r aj's Avatar
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    I am revising my science subject tonight.

    I am gonna ask quetions which seem to me difficult.

    My first question is

    data from which i made my question

    1- impression on human eye lasts for 1/16th of a second
    2- persistance of sound on ear = 1/10th of a second

    question
    why ear takes much time for processing input? eye is quicker. what purpose of evolution is behind this?


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    Quote Originally Posted by sir ir r aj View Post
    I am revising my science subject tonight.

    I am gonna ask quetions which seem to me difficult.

    My first question is

    data from which i made my question

    1- impression on human eye lasts for 1/16th of a second
    2- persistance of sound on ear = 1/10th of a second

    question
    why ear takes much time for processing input? eye is quicker. what purpose of evolution is behind this?
    What is the source of your data about the ear registering sound?

    When we write music is it based on this factor? For when my son was composing music there were more things going on than 10/sec, so was that all unnecessary for the ear can at best only hear 10 things in a sec? Is that 10/sec at anyone frequency? But there are multiple frequencies.


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    Quote Originally Posted by Robittybob1 View Post
    Quote Originally Posted by sir ir r aj View Post
    I am revising my science subject tonight.

    I am gonna ask quetions which seem to me difficult.

    My first question is

    data from which i made my question

    1- impression on human eye lasts for 1/16th of a second
    2- persistance of sound on ear = 1/10th of a second

    question
    why ear takes much time for processing input? eye is quicker. what purpose of evolution is behind this?
    What is the source of your data about the ear registering sound?

    When we write music is it based on this factor? For when my son was composing music there were more things going on than 10/sec, so was that all unnecessary for the ear can at best only hear 10 things in a sec? Is that 10/sec at anyone frequency? But there are multiple frequencies.
    i donno about music writing. maybe ear is deisgned through evolution to retain a frequency/wavelength for 1/10th of second. (vibrations required to make impression on cochlea which contain special cells but at first ear vibrations touch ear drum then shifted to cochelea in inner ear) I cant define retainability as it is separate for eye and ear. maybe it is due "nerve speed" which tranfers data between ear/eye and brain.
    i shared this data from a text book written by professors of this subject. it is in hard copy. so no link
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    Quote Originally Posted by sir ir r aj View Post
    Quote Originally Posted by Robittybob1 View Post
    Quote Originally Posted by sir ir r aj View Post
    I am revising my science subject tonight.

    I am gonna ask quetions which seem to me difficult.

    My first question is

    data from which i made my question

    1- impression on human eye lasts for 1/16th of a second
    2- persistance of sound on ear = 1/10th of a second

    question
    why ear takes much time for processing input? eye is quicker. what purpose of evolution is behind this?
    What is the source of your data about the ear registering sound?

    When we write music is it based on this factor? For when my son was composing music there were more things going on than 10/sec, so was that all unnecessary for the ear can at best only hear 10 things in a sec? Is that 10/sec at anyone frequency? But there are multiple frequencies.
    i donno about music writing. maybe ear is deisgned through evolution to retain a frequency/wavelength for 1/10th of second. (vibrations required to make impression on cochlea which contain special cells but at first ear vibrations touch ear drum then shifted to cochelea in inner ear) I cant define retainability as it is separate for eye and ear. maybe it is due "nerve speed" which tranfers data between ear/eye and brain.
    i shared this data from a text book written by professors of this subject. it is in hard copy. so no link
    So have you got the text book with you? What is it called and who wrote it?
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  6. #5  
    precious sir ir r aj's Avatar
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    Quote Originally Posted by Robittybob1 View Post
    So have you got the text book with you? What is it called and who wrote it?
    "A Text Book of Biology for class XII" Government of Pakistan Chapter:3 = Co-ordination and Control.
    There are 10 authors , just quoting names of three.
    Prof Amjad Ali Syed
    Prof Arshad Jamal
    Dr. Masood Khan

    You definitely dont know them. As they are not famous internationally.
    ok?
    Last edited by sir ir r aj; November 2nd, 2013 at 04:27 PM.
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    Quote Originally Posted by sir ir r aj View Post
    Quote Originally Posted by Robittybob1 View Post
    So have you got the text book with you? What is it called and who wrote it?
    "A Text Book of Biology for class XII" Government of Pakistan Chapter:3 = Co-ordination and Control.
    There are 10 authors , just quoting names of three.
    Prof Amjad Ali Syed
    Prof Arshad Jamal
    Dr. Masood Khan

    You definitely dont know them. As they are not famous internationally.
    ok?
    Which book is it on this page please?
    Biology class xii text - free eBooks download
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    Quote Originally Posted by sir ir r aj View Post
    why ear takes much time for processing input? eye is quicker. what purpose of evolution is behind this?
    It's about the way the data is processed. The ear is a very impressive, but very convoluted system. It requires the tympanic membrane changing sound waves into mechanical energy, which then travels through three bones, which again create pressure differentials within the cochlea. The cochlea requires yet more travel of pressure waves through fluid which stimulates hair cells that finally send signals to the brain.

    The eye receives direct input to photoreceptors that send signals to the brain immediately.
    "Sometimes I think the surest sign that intelligent life exists elsewhere in the universe is that none of it has tried to contact us." -Calvin
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    Northern Horse Whisperer Moderator scheherazade's Avatar
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    The question that arose in my mind, upon reading this thread, is that I wonder if these differences:
    From the OP: 1- impression on human eye lasts for 1/16th of a second
    2- persistance of sound on ear = 1/10th of a second
    ...are an adaption of our nervous system in evaluating mediums of considerably different speed. Light travels faster than sound and so the sensory detection system and pattern recognition part of our brain needs to compensate and synch the data?

    Just a thought...
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    Quote Originally Posted by Flick Montana View Post
    Quote Originally Posted by sir ir r aj View Post
    why ear takes much time for processing input? eye is quicker. what purpose of evolution is behind this?
    It's about the way the data is processed. The ear is a very impressive, but very convoluted system. It requires the tympanic membrane changing sound waves into mechanical energy, which then travels through three bones, which again create pressure differentials within the cochlea. The cochlea requires yet more travel of pressure waves through fluid which stimulates hair cells that finally send signals to the brain.

    The eye receives direct input to photoreceptors that send signals to the brain immediately.
    ear is some dirty ****machine
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  11. #10  
    precious sir ir r aj's Avatar
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    Quote Originally Posted by Robittybob1 View Post
    Which book is it on this page please?
    Biology class xii text - free eBooks download
    None, these are India's text books.
    If I find the link I shall share here. Untill that time be patient
    Thanks
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  12. #11  
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    Quote Originally Posted by sir ir r aj View Post
    Quote Originally Posted by Robittybob1 View Post
    Quote Originally Posted by sir ir r aj View Post
    I am revising my science subject tonight.

    I am gonna ask quetions which seem to me difficult.

    My first question is

    data from which i made my question

    1- impression on human eye lasts for 1/16th of a second
    2- persistance of sound on ear = 1/10th of a second

    question
    why ear takes much time for processing input? eye is quicker. what purpose of evolution is behind this?
    What is the source of your data about the ear registering sound?

    When we write music is it based on this factor? For when my son was composing music there were more things going on than 10/sec, so was that all unnecessary for the ear can at best only hear 10 things in a sec? Is that 10/sec at anyone frequency? But there are multiple frequencies.
    i donno about music writing. maybe ear is deisgned through evolution to retain a frequency/wavelength for 1/10th of second. (vibrations required to make impression on cochlea which contain special cells but at first ear vibrations touch ear drum then shifted to cochelea in inner ear) I cant define retainability as it is separate for eye and ear. maybe it is due "nerve speed" which tranfers data between ear/eye and brain.
    i shared this data from a text book written by professors of this subject. it is in hard copy. so no link
    I cannot reply scientifically, but just musically.

    I hear a sound.....it registers in both my ears and my brain. I hear, in my head..... the octaves above and below them, instantly. I cannot put a time on it but it is something that is very automatic, and it really maybe takes less than a second for all those tones to assemble in my head. Don't know if that makes any sense to anyone here. We call it hearing overtones.


    o·ver·tone
    [oh-ver-tohn]

    noun
    1.
    Music. an acoustical frequency that is higher in frequency than the fundamental.
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  13. #12  
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    Wiki
    Echo - Wikipedia, the free encyclopedia
    When dealing with audible frequencies, the human ear cannot distinguish an echo from the original sound if the delay is less than 1/10 of a second
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    Quote Originally Posted by sir ir r aj View Post
    why ear takes much time for processing input? eye is quicker. what purpose of evolution is behind this?
    I'm sure you're talking about something else but there's also a trait every male of the human species is genetically predisposed to have. Women know of it, especially when in a committed relationship with a man. I'm sure everyone's heard of Selective Hearing. Definitely evolution at work here. Centuries of spousal nagging has produced this adaptive response (or lack of) in most if not all men. We listen, yet we hear only what we want to hear. For instance if I'm watching football on TV and my female partner starts yakking about gardening or something I can't focus on then I just don't hear it. I might pick out the odd word because I may need it by the time the female is finished. Selective Hearing maintains a man's sanity for the really important stuff, like sports. Men do not deal with the petty and mundane. The female can rant on and on about needing new curtains but it just isn't worth listening to for the male. However men give this instinctive non listening adaptation away by a nod of the head or answering in agreement with simple grunts or even an occasional affirmative word like Yes. Women are quick to pick up on it, more adaptive evolution at work, good for their side. Further adaptation is required and may take a few more centuries so that men sound more convincing. Nothing worse than being caught, especially during a good part of the game, a penchant women seem to have for timing.
    Last edited by zinjanthropos; November 3rd, 2013 at 12:12 PM.
    All that belongs to human understanding, in this deep ignorance and obscurity, is to be skeptical, or at least cautious; and not to admit of any hypothesis, whatsoever; much less, of any which is supported by no appearance of probability...Hume
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  15. #14  
    Theatre Whore babe's Avatar
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    Quote Originally Posted by zinjanthropos View Post
    Quote Originally Posted by sir ir r aj View Post
    why ear takes much time for processing input? eye is quicker. what purpose of evolution is behind this?
    I'm sure you're talking about something else but there's also a trait every male of the human species is genetically predisposed to have. Women know of it, especially when in a committed relationship with a man. I'm sure everyone's heard of Selective Hearing. Definitely evolution at work here. Centuries of spousal nagging has produced this adaptive response (or lack of) in most if not all men. We listen, yet we hear only what we want to hear. For instance if I'm watching football on TV and my female partner starts yakking about gardening or something I can't focus on then I just don't hear it. I might pick out the odd word because I may need it by the time the female is finished. Selective Hearing maintains a man's sanity for the really important stuff, like sports. Men do not deal with the petty and mundane. The female can rant on and on about needing new curtains but it just isn't worth listening to for the male. However men give this instinctive non listening adaptation away by a nod of the head or answering in agreement with simple grunts or even an occasional affirmative word like Yes. Women are quick to pick up on it, more adaptive evolution at work, good for their side. Further adaptation is required and may take a few more centuries so that men sound more convincing. Nothing worse than being caught, especially during a good part of the game, a penchant women seem to have for timing.
    I have overcome this problem by ordering the new curtains and presenting the bill to him. After all. HE DID NOD!!
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    Quote Originally Posted by babe View Post
    I have overcome this problem by ordering the new curtains and presenting the bill to him. After all. HE DID NOD!!
    Damn evolution. Sorry but I had to watch the games, the replays, the highlights and the analyses first, before responding. During it all however, I think I bought a new sofa.
    All that belongs to human understanding, in this deep ignorance and obscurity, is to be skeptical, or at least cautious; and not to admit of any hypothesis, whatsoever; much less, of any which is supported by no appearance of probability...Hume
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    Quote Originally Posted by zinjanthropos View Post
    Quote Originally Posted by babe View Post
    I have overcome this problem by ordering the new curtains and presenting the bill to him. After all. HE DID NOD!!
    Damn evolution. Sorry but I had to watch the games, the replays, the highlights and the analyses first, before responding. During it all however, I think I bought a new sofa.
    Thanks for the ruby earring jackets!! I SO needed them for my diamond studs!

    When is the next game?
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