[Boatanchors] Odd Color Spectrums

[J. Forster]

Absolutely right.

In graphic arts darkrooms red safelights are used. Blue lines are
completely invisible... which is why editors use them.

-John

================


> A narrow color spectrum can help or hurt.
>
> Because fresh beef is not red but we expect it to be red, butchers can
> buy special lights for their display cases that make the bluish beef
> appear red.
>
> Years ago I lost my very red car in a parking lot at night.  The lot was
> lighted with low pressure sodium lights.  Low pressure sodium lights
> have little or no red component, so there was nothing to reflect back
> from my red car.  It appeared maroon as I stood beside it.  I wondered
> at this car which was exactly as mine except that it was maroon.  This
> was before key-less remotes and, finally, I tried the key in the door
> and it worked.  Admittedly, alcohol was involved, but the illustration
> is still fair.
>
>
> Ron
>
> --
> Ronald J. Hunsicker, P.E.
> 1238 Cleveland Avenue
> Wyomissing, PA   19610-2102
> 484-332-1164
> 610-478-0453 facsimile
> ronhunsi at ptd dot net
>
>
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