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Re: LA Rail Revival

Subject: Re: LA Rail Revival
From: "Pansy" <someone@somewhere.org>
Date: Wed, 16 Jun 1999 18:41:27 -0700
Newsgroups: aus.rail, uk.railway, la.transportation
Organization: SBC Internet Services
References: <3762eb29.0@newshost.pcug.org.au> <Pine.PMDF.3.95.990614222712.541871371F-100000@clstac.is.csupomona.edu> <37658F9D.70317423@ridgecrest.ca.us> <7k8nu3$qtl$1@nnrp1.deja.com> <FDFrt7.20H@lerami.lerctr.org>


Ray Mullins <mrm@lerami.lerctr.org> wrote in message
FDFrt7.20H@lerami.lerctr.org">news:FDFrt7.20H@lerami.lerctr.org...

> Depends what you are talking about.
>
> Pigment primary colors are red, blue and yellow.
> Light primary colors are red, blue and green.

Correct.  Color scientists use the terms "additive color space" for light
(red + blue + green = white), and "subtractive color space" for pigments
(shine white light onto red pigment and the pigment "subtracts", i.e. does
not reflect, the parts of the color spectrum other than red).  Not that this
has beans to do with transportation :-)

References:
- LA Rail Revival
  - From: "David Bennetts" <davibenn@pcug.org.au>
- Re: LA Rail Revival
  - From: Henry Fung <hfung@csupomona.edu>
- Re: LA Rail Revival
  - From: Merritt Mullen <mmullen@ridgecrest.ca.us>
- Re: LA Rail Revival
  - From: elson@westworld.com
- Re: LA Rail Revival
  - From: mrm@lerami.lerctr.org (Ray Mullins)

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