Talk:ROYGBIV

message: I don't expect that any page will ever actually link here, but to facilitate a reader's search for this phrase, I believe this needs to exist. Elf | Talk 18:45, 22 Mar 2004 (UTC)
replies: text: It'd function happily as a redirect. Jimp 05:42, 27 March 2007 (UTC)
thread_title: Making this page

message: Well I cannot remember the source but with reagards to to describing the visible spectrum, I had heard, or read that Sir Isaac Newton originally named only 5 colors to describe what he saw, but because music, was being analyzed and quantified, etc. and the science of music was deciding that 7 was the numbert of tones that should be ordered (do, rea, mi, fa, so, la, ti, do) Sir Isaac thought it best to yank 2 more colors out to make it 7 to match other systems being ordered at that time. This makes a great deal of sense when you view your first sunlight spectrum. That Blue, Indigo, Violet mush at the end! But if Cyan was not an easily recognizable hue...what was he to do? No this is not a joke.--Dkrolls 14:32, 15 May 2006 (UTC)
replies: text: Wihtout having seen this comment, I added a mention of this a couple of weeks later (in May).  I got it from the visible spectrum Wiki article.  I will endeavor soon to add the references that are there.  It's always been a pet peeve of mine that indigo really doesn't belong there (and evidently Isaac Asimov had said the same thing), but it wasn't until reading the Wiki articles that it sunk in just how arbitrary it all was.  danwWiki 19:10, 25 September 2006 (UTC)
replies: text: There is some evidence that Newton's use of the terms blue and indigo map to the modern hues turquoise/cyan and blue respectively. This seems credible as many people would find it easier to accept a seventh hue between green and blue rather than between blue and violet. I'm trying to dig out the reference for this. Neil Dodgson 13:29, 21 February 2007 (UTC)
thread_title:  Hmmm, Yes, but what about... 

message: I feel Gamboge is an important addition to this article, appearing between Red and Orange.  This is how I learned this mnemonic device when I was a lad.  Indigo and Violet are quite similar, so other close colors may also be included.
:A google search for "roy g biv" returns about 126,000 hits.  Googling for "rgoy g biv" returns zero. Provide a cite that this "rgoy g biv" exists beyond a handful of people, and I won't revert it a third time.  Travisl 21:43, 28 July 2006 (UTC)
replies: text: Oh, and that's not the name of the song on the album, nor is "Great" mentioned in Richard Plantagenet, 3rd Duke of York.  Travisl 21:45, 28 July 2006 (UTC)
thread_title:  Gamboge 

message: I'm calling BS on the "Virgins In Bed Get Your Organs Red." mnemonic. It may be a valid mnemonic, but it has ONE hit on Google other than this page, and is immature to boot. 
A lot of people are clearly familiar with the "Roy G. Biv" (and variants) mnemonic and also "Richard Of York Gave Battle In Vain" (Google has about 1000 hits). I'm not sure I believe those other mnemonics though. Good books? Rowntrees? All ingenious, but can anyone supply a reference? "Ring Out Your Granny's Boots In Vinegar" is not event spelled correctly ("Wring", which destroys the mnemonic), unless that is an intentionally humorous point of course. I'll delete these unless someone stands up for them or can supply references. Mooncow 18:46, 21 March 2007 (UTC)
replies: text: I agree; if we don't find a source, take them out.  "Rowntrees of York" is a famous store, so it seems likely that its initials ROY would have been adopted this way, but I don't see a source. Dicklyon 21:36, 21 March 2007 (UTC)
replies: text: Done. I looked for a substantiating source and didn't spot one. The ones I removed are shown below. Mooncow 00:44, 23 March 2007 (UTC)
thread_title:  Popular (?) Mnemonics 

message: I was astounded to find this article on Wikipedia, when searching for the colours of the rainbow.
The link ROYGBIV redirects here, a page which is totally slanted to a US-centric mnemonic for remembering the order of the colours.
I have not ever heard of "Roy G. Biv" as a way of remembering this list, and nor has anyone I've asked.  I took a survey of 120 of my students and not a single one had heard of this.  However it is listed as a "traditional" mnemonic, without stating any particular country.  I would suggest this is only traditional in Northern America.  Coming from the UK, everyone I know is familiar with the Richard of York... version.
However, the article - after mentioning Roy G. Biv as the foremost method of remembering the sequence - goes on to then describe the history/reasoning of how the colours came to be listed.
Then follows another listing of methods of remembering the sequence.
I think the article should be re-written to be titled "Colours of the Rainbow" (with or without the 'u' if you prefer!).
Then, the history part should serve as the intro, with methods of remembering it following.
Also, the Acorn Electron game mentioned in the Cultural References section does not reference the subject of this article but instead just has the first letters of the colours in order - the password is not "Roy G. Biv" it's ROYGBIV.
Howie ☎ 00:24, 26 January 2008 (UTC)
replies: text: Good to know.  I've flagged it.  I'm not sure that "Colors of the rainbow" would be an appropriate title, though.  I'm US-centric myself, but perhaps "Color spectrum mnemonics" would be better? Travisl (talk) 01:07, 26 January 2008 (UTC)
thread_title:  Proposed rewrite 

message: Supposedly they took Indigo out? 70.23.208.195 (talk) 04:45, 21 June 2009 (UTC)
replies: text: Yes, that's Roy G. Biv without an eye. -- 70.58.93.44 (talk) 21:25, 11 November 2010 (UTC)

text: Indigo was a more common term when more people were dyeing cloth, and had to deal with indigo dye.  That is a much less common activity due to the popularity of mass-produced cloth and clothing.  Excuse me, I need to get fresh onions for my belt.  -- SEWilco (talk) 20:29, 22 March 2012 (UTC)
thread_title:  ROY G BV? 

message: UVA Astronomer, your statement  "Although the spectrum is actually a continuum, the rainbow is perceived by the human eye (and the eyes of many other mammals) as discrete bands, due to the finite number of photoreceptor cell types in the eye" is not entirely clear. Please specify the number of discrete bands and the relation between that number and the 3 types of cones in the retina. And how did you find out that many mammals perceive discrete bands? Ceinturion (talk) 10:08, 10 May 2010 (UTC)
replies: text: I noticed you rephrased it today into "the distinct bands are an artifact of human colour vision".  I agree that's better. Ceinturion (talk) 08:30, 17 May 2010 (UTC)
thread_title:  Number of discrete bands 

message: I removed the sentence "There is some evidence in [Newton's] notebooks that his indigo is equivalent to a modern blue (with his blue matching the modern turquoise).", which was added 2 days ago (1), because it is a confusing sentence. It seems to imply that a statement by Newton that the sky is blue should be translated as the sky is turquoise. Furthermore it is confusing to explicitly claim that there is some evidence, and at the same time request readers to provide references for that claim. Elevant (talk) 08:38, 11 August 2010 (UTC)
thread_title:  Turquoise confusion 

message: I added a citation needed tag, but, does anyone know in which work Aristotle mentioned a scale of seven colors? I don't doubt the claim, but I'm kind of interested on reading what Aristotle said exactly. 98.115.103.26 (talk) 18:27, 22 June 2017 (UTC)
thread_title:  Aristotle 

message: Hi, Indigo is the last color in the main picture but not Violet. I think it should be corrected to reflect the article's name better. --Dee (talk) 11:21, 18 May 2023 (UTC)
thread_title:  Missing Violet on the picture