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G6KUI > TECHNI 21.02.04 13:30l 22 Lines 854 Bytes #999 (0) @ WW
BID : 65635-G6KUI
Read: DB0FHN GUEST OE7FMI
Subj: Re: Coloured cars..?
Path: DB0FHN<DB0FOR<DB0MRW<OK0PKL<OK0PCC<OK0PRG<OK0PAB<OK0PBR<OK0NMG<WB0TAX<
SP7MGD<VK3KAY<GB7YKS<GB7YFS<GB7MAX<GB7DBY<GB7DBY
Sent: 040221/1203z @:GB7DBY.#23.GBR.EU NPF2.54c [G6KUI PMS Alvaston Derby]
Ralph G7IED wrote.....
} I have had many colours of car and always thought the lighter colours
} and white in particular were cooler in hot weather they certainly don't
} show scratches as much, modern paint scratches for fun cant understand
} how they get away with it, they tell us it's more friendly to the environment
} but is probably just cheaper.
}
What everyone seems to forget is that the "colour" of the car is what we
see in the visible spectrum, and what heat is absorbed is dependent on
what is absorbed or not in the infrared spectrum.
Something that looks black in the visible spectrum might not be so in
the infrared spectrum. Silver/white in the visible may look black in the
infrared and hence absorb more heat energy than a black in the visible
that may look white in the infrared.
73, Pete G6KUI
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