On Sun, 11 Jan 2004, "Markus Ludes" wrote:
I hope to find here a expertise answere to this questions, asked to me
by our neighbour who just started in astronomy.
we all know that the human eyes are highest senstive at diffrent
wavelenght on day or night time
Now can somebody explain why the human eyes are most sensitive at about
500 to 530 nm and not at 600 to 650 nm or 400 to 450 nanometer ?
Is it just because God made it that way, or is there any biological or
physical reason for that ?
we asked several PHD Physics and Biological People and they all have
been a bit confused because never somebody asked this question before
and they even dont know the answere
so is here somebody who can explain me the reason ?

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Let's see. The night sky is closer to Indigo (between blue
and magenta or violet). While the day sky's closer to cyan
or bluegreen. Green is yellow-cyan and is exactly opposite
magenta or violet on the zodiacal color wheel. Men adapted
to the color of the Sun in the daytime sky to wit yellow &
cyan, respectively. Yellow & Cyan mixing together is Green.
A simple sidereal & synodic chart of the zodiac shows this:

SIDEREAL (Solars)
|------------------29.45------------------|
| |--------------11.86--------------| |
| | |----------1.881----------| | |
84.02 | | |------0.615------| | | |
/Ur | | | |--0.241--| | | | |
| 164.8 | | | 0.075 | | 247.9 | |
| /Ne | | | | 1 | | /Pl | |
| | | | | | | | | | | |
IVi Vio Red ROr Ora OYe Yel Gre GBl Blu BIn Ind
Sat Jup Mar Ven Mer Moo Sun Mer Ven Mar Jup Sat
Aqu Pis Ari Tau Gem Can Leo Vir Lib Sco Sag Cap
11 12 1 2 3 4 5 6 7 8 9 10
Bb B C Db D Eb E F Gb G Ab A
| | | | | | | | | | | |
| */Ne | | | | - | | */Pl | |
| 1.006 | | | 0.081 | | 1.004 | |
*/Ur | | | |--0.317--| | | | |
1.012 | | |------1.599------| | | |
| | |----------2.136----------| | |
| |--------------1.095--------------| |
|------------------1.035------------------|
SYNODIC (Lunars)

*Ura Earth's sidereal year =~ 1.00004
*Nep Earth's tropical year =~ 1.00000
*Plu Earth's own geocenter =~ 0.00000

Daniel Joseph Min

*Min's Planetary Awareness Technique (Min's fourth book):
http://groups.google.com/groups?selm...amesh-frog.org

*Min's Light & Sound (Min's third book):
http://groups.google.com/groups?selm...amesh-frog.org

*Min's Compleat Tarot Manual (Min's second book):
http://groups.google.com/groups?selm...amesh-frog.org

*Min's Historical Calendar Of Jesus (Min's first book):
http://groups.google.com/groups?selm...t orebels.net

*Min's Interlinear Translation of the Apocalypse:
http://groups.google.com/groups?selm...amesh-Frog.org

*Min's $10,000 Reward For Astronomers:
http://groups.google.com/groups?selm...amesh-frog.org

*Min's Newsgroup-Archived Home Page On The World Wide Web:
http://groups.google.com/groups?selm...amesh-frog.org

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