Re: "hindsight is always 20-20"

On Sun, 30 Nov 2003 07:44:53 +0000, John Woodgate
<[EMAIL PROTECTED]> wrote:

>I read in sci.lang.translation that Steve M (remove wax to reply)
><[EMAIL PROTECTED]> wrote (in <827isvo1of8pu465petkfo951kkai70g61
>@4ax.com>) about '"hindsight is always 20-20"', on Sat, 29 Nov 2003:
>>On Sat, 29 Nov 2003 18:27:14 +0000, John Woodgate
>><[EMAIL PROTECTED]> wrote:
>>
>>>I read in sci.lang.translation that Steve M (remove wax to reply)
>>><[EMAIL PROTECTED]> wrote (in <96mhsv8gggtppvre6qqmv50pcg6ga45c9j
>>>@4ax.com>) about '"hindsight is always 20-20"', on Sat, 29 Nov 2003:
>>>
>>>>On the other hand, according to the machine used by 
>>>>the Texas Department of Public Safety drivers license office, my right 
>>>>eye is 20-200.
>>>
>>>It may not be impossible. The range of human senses over the population
>>>is very large. There are enough of us now to explore the six-sigma
>>>region and well beyond.
>>>
>>>I knew two people who had hearing sensitivity far exceeding the normal
>>>range. And there is an apocryphal story about a German (?) woman who
>>>could recognize faces at 1000 metres (IIRC). 
>>
>>Um, I'm not sure whether you understood what 20-200 means.  In
>>principle, that eye sees at 20 feet what a normal eye sees at 200.
>>
>>Chuck Yeager, WWII ace and first pilot to crack the sound barrier, had
>>(or has) 20-10 vision.
>>
>>
>Is the format that way round? I recall being told I had 20-10 vision
>when I had atropine in both eyes, pending an examination of them. The
>effect is strange, but I wouldn't describe it as an increase in visual
>acuity.

http://www.agingeye.net/visionbasics/healthyvision.php
http://www.mdsupport.org/library/acuity.html
http://science.howstuffworks.com/question126.htm

"Hawks, owls and other birds of prey have much more acute vision than
humans. A hawk has a much smaller eye than a human being but has lots
of sensors (cones) packed into that space. This gives a hawk vision
that is eight times more acute than a human's. A hawk might have 20/2
vision!"




-- 
Steve M - [EMAIL PROTECTED]
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