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From: jfw@mit-eddie.UUCP (John Woods)
Newsgroups: net.cooks,net.flame
Subject: Re: Re: Truth in Advertising?
Message-ID: <3210@mit-eddie.UUCP>
Date: Wed, 28-Nov-84 22:39:06 EST
Article-I.D.: mit-eddi.3210
Posted: Wed Nov 28 22:39:06 1984
Date-Received: Fri, 30-Nov-84 06:37:57 EST
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Organization: MIT, Cambridge, MA
Lines: 19

>> What I've always wondered is why the closer to the equator people live, the
>> darker their skin tends to be. It seems that in the interests of maintainting
>> a reasonable body temperature, it should be just the opposite.
>> 
>> 	Wayne
>
>I had heard that this has to do with the intensity of the sunlight in the
>area being discussed.  Dark(er)-skinned people have more UV-absorbing compounds
>in their skins which helps guard against skin damage/sunburn.  This would seem
>to tally with the above observation.

It's true.  Relatively few people achieve thermodynamic equilibrium with the
sun.  Good thing, too.
-- 
John Woods, Charles River Data Systems
decvax!frog!john, mit-eddie!jfw, JFW%mit-ccc@MIT-XX

When your puppy goes off in another room,
is it because of the explosive charge?