At 03:14 PM Tuesday 7/22/2008, Julia Thompson wrote: >On Tue, 22 Jul 2008, Mauro Diotallevi wrote: > > > On Sat, Jul 19, 2008 at 10:04 PM, William T Goodall > > <[EMAIL PROTECTED]> wrote: > >> There used to be seven colours in a rainbow and four basic flavours > >> (sweet, sour, bitter, salt) and then indigo became a shade of violet > >> and umami became the fifth basic flavour. > > > > I thought that there were still 7 colors of the rainbow *including* > > indigo. I learned the colors as ROY G BIV -- Red Orange Yellow Green > > Blue Indigo Violet. > > > > Or did you learn a different system? > >http://en.wikipedia.org/wiki/Indigo > >"Color scientists do not usually recognize indigo as a significant color >category, and generally classify wavelengths shorter than about 450 nm as >violet." > >Also, there's a source text from the 19th century at Wikipedia on this >very question; the tinyurl for it is http://tinyurl.com/5f8afl > >My resident color expert says it's just a word game. :) Then again, he >knows more about color *science* than color *words*. > >http://en.wikipedia.org/wiki/Rainbow#The_place_of_indigo >"All the Roy G. Biv mnemonics follow the tradition of including the colour >indigo between blue and violet. Newton originally (1672) named only five >primary colours: red, yellow, green, blue and violet. Only later did he >introduce orange and indigo, giving seven colours by analogy to the number >of notes in a musical scale. Some sources now omit indigo, because it >is a tertiary color and partly due to the poor ability of humans to >distinguish colours in the blue portion of the visual spectrum." > >My kids' crayon boxes have red, orange, yellow, green, blue and violet; if >you buy a box of 8 crayons, you get all those but not indigo. I >personally conform to the crayon box school of "rainbow colors". > >(Oh, and Resident Color Expert warns that magenta, pink and brown are >*not* rainbow colors, just in case anyone thought any of them might be, or >ought to be.)
Magenta, however, is a secondary additive color, or a primary subtractive color, along with cyan and yellow. . . . ronn! :) _______________________________________________ http://www.mccmedia.com/mailman/listinfo/brin-l
