Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!watmath!clyde!burl!ulysses!mhuxl!houxm!houxz!vax135!cornell!uw-beaver!tektronix!hplabs!zehntel!dual!amd!decwrl!decvax!mcnc!ecsvax!hes From: hes@ecsvax.UUCP Newsgroups: net.physics Subject: Re: colors addition vs subtraction Message-ID: <3074@ecsvax.UUCP> Date: Wed, 8-Aug-84 13:27:06 EDT Article-I.D.: ecsvax.3074 Posted: Wed Aug 8 13:27:06 1984 Date-Received: Sun, 12-Aug-84 01:36:28 EDT Lines: 7 <>There appears to be some confusion between "additive" and "subtractive" colors. My understanding was that mixing blue and yellow paints gives green because *subtracting* from white light both spectra leaves green to be reflected. (Blue paint subtracts most everything but around blue, similarly for yellow paint.) This is different than combining blue and yellow light beams, which is *additive*.