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RussL
Music Maker
Reged: 03/18/08
Posts: 1603
Loc: Cayce, SC
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Re: Our Biology Needs Darkness
06/15/08 10:20 AM
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And thanks to you, Rich, for replying. This topic is something I have thought about for some time, but never researched (I love to just contemplate--I'm basically lazy, I guess). What I mean about the light bulb is that it could be considered a natural phenomenon in the universe only if you consider that it was made by us, also a natural phenomenon--but not natural in its own right. Luminescent creatures and geological luminescence is totally natural. Ever see the old version of "Journey To the Center of the Earth" where they turn off their lanterns only to find things lit up naturally? Cool.
Wow, something just hit me about your description of the sea bottom. Perhaps creatures that have evolved without the day/night rhythm don't need darkness at all. Why, they even survive in a perpetual glow. So, I guess organisms' needs vary.
Maybe when menacing aliens arrive on Earth, if they evolved in darkess, we can kill 'em with our flashlights?  Or not.
In any case, your reply gets us one step closer to an understanding of things unknown. 
--------------------
--Russell
"Akita mani yo." Observe everything as you walk. (--Lakota)
Celestron Celestar 8 Standard SCT, f10
Celestron 80mm Wide View ref., f5
Criterion RV-6 Dynascope, Newt., f8, (c. 1962)
Sears Discoverer 60mm ref., f7, (c. 1973)
Celestron Ultima DX 10x50, 6.5 TFOV
Tasco 7x35 wide
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