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EvC Forum ⇒ Science Forums ⇒ Human Origins and Evolution ⇒

Caucasions are the Defectives

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Author Topic:   Caucasions are the Defectives
Nighttrain
Member (Idle past 4023 days)
Posts: 1512
From: brisbane,australia
Joined: 06-08-2004

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Message 4 of 12 (270226)
12-16-2005 11:06 PM 		Reply to: Message 1 by NosyNed
12-16-2005 9:35 PM

Skin colour
Scientists have long theorized that the lack of sunlight in northern latitudes exerted strong pressures for the natural selection of certain genetic traits. In Africa, dark skin likely protected people from the harmful ultraviolet light effects of a tropical climate, Dr. Parra said.
​
And yet in inorganic objects, e.g. solar panels, we find a dark surface increases UV absorbtion, while a light surface reflects UV (the albedo effect).
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Nighttrain
Member (Idle past 4023 days)
Posts: 1512
From: brisbane,australia
Joined: 06-08-2004

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Message 8 of 12 (270450)
12-18-2005 5:25 AM 		Reply to: Message 7 by coffee_addict
12-17-2005 2:34 PM

Pigmentation
Give me time, I`m working on it.
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