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Re: Are English school children really taught that there are seven colours in the visible spectrum?

From moroney@world.std.spaamtrap.com (Michael Moroney)
Newsgroups sci.physics
Subject Re: Are English school children really taught that there are seven colours in the visible spectrum?
Date 2016-06-24 18:42 +0000
Organization The World : www.TheWorld.com : Since 1989
Message-ID <nkjuud$9o7$1@pcls7.std.com> (permalink)
References <nkhd27$joq$1@news.albasani.net>

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Peter Percival <peterxpercival@hotmail.com> wrote:
> I know that Newton pretended that there were seven colours in the 
> rainbow (presumably he didn't really believe it).

The Wikipedia rainbow article https://en.wikipedia.org/wiki/Rainbow states
Newton initially used five colors but later added orange and indigo because
the number seven was considered special (musical notes, (known) objects in
solar system, days of week) at the time.

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Thread

Are English school children really taught that there are seven colours in the visible spectrum? Peter Percival <peterxpercival@hotmail.com> - 2016-06-23 20:24 +0100
  Re: Are English school children really taught that there are seven colours in the visible spectrum? jimp@specsol.spam.sux.com - 2016-06-23 19:45 +0000
    Re: Are English school children really taught that there are seven colours in the visible spectrum? Peter Percival <peterxpercival@hotmail.com> - 2016-06-24 13:27 +0100
      Re: Are English school children really taught that there are seven colours in the visible spectrum? jimp@specsol.spam.sux.com - 2016-06-24 16:09 +0000
    Re: Are English school children really taught that there are seven colours in the visible spectrum? Wally W. <ww84wa@aim.com> - 2016-06-24 08:56 -0400
      Re: Are English school children really taught that there are seven colours in the visible spectrum? jimp@specsol.spam.sux.com - 2016-06-24 16:12 +0000
        Re: Are English school children really taught that there are seven colours in the visible spectrum? Wally W. <ww84wa@aim.com> - 2016-06-24 23:43 -0400
          Re: Are English school children really taught that there are seven colours in the visible spectrum? jimp@specsol.spam.sux.com - 2016-06-25 05:06 +0000
            Re: Are English school children really taught that there are seven colours in the visible spectrum? Wally W. <ww84wa@aim.com> - 2016-06-25 10:52 -0400
              Re: Are English school children really taught that there are seven colours in the visible spectrum? jimp@specsol.spam.sux.com - 2016-06-25 15:28 +0000
                Re: Are English school children really taught that there are seven colours in the visible spectrum? Wally W. <ww84wa@aim.com> - 2016-06-25 13:15 -0400
                Re: Are English school children really taught that there are seven colours in the visible spectrum? jimp@specsol.spam.sux.com - 2016-06-25 20:15 +0000
                Re: Are English school children really taught that there are seven colours in the visible spectrum? Wally W. <ww84wa@aim.com> - 2016-06-25 17:49 -0400
                Re: Are English school children really taught that there are seven colours in the visible spectrum? jimp@specsol.spam.sux.com - 2016-06-25 22:35 +0000
  Re: Are English school children really taught that there are seven colours in the visible spectrum? moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-06-23 20:14 +0000
    Re: Are English school children really taught that there are seven colours in the visible spectrum? benj <benj@nobody.net> - 2016-06-23 17:48 -0400
      Re: Are English school children really taught that there are seven colours in the visible spectrum? Sergio <invalid@invalid.com> - 2016-06-24 10:19 -0500
        Re: Are English school children really taught that there are seven colours in the visible spectrum? Archimedes Plutonium <plutonium.archimedes@gmail.com> - 2016-06-24 14:03 -0700
  Re: Are English school children really taught that there are seven colours in the visible spectrum? moroney@world.std.spaamtrap.com (Michael Moroney) - 2016-06-24 18:42 +0000
    Re: Are English school children really taught that there are seven colours in the visible spectrum? Wally W. <ww84wa@aim.com> - 2016-06-24 23:49 -0400
  Re: Are English school children really taught that there are seven colours in the visible spectrum? Jerry Kraus <jkraus1999@gmail.com> - 2016-06-24 06:43 -0700
  Re: Are English school children really taught that there are seven colours in the visible spectrum? Jerry Kraus <jkraus1999@gmail.com> - 2016-06-24 13:26 -0700
    Re: Are English school children really taught that there are seven colours in the visible spectrum? Wally W. <ww84wa@aim.com> - 2016-06-24 23:50 -0400
      Re: Are English school children really taught that there are seven colours in the visible spectrum? jimp@specsol.spam.sux.com - 2016-06-25 05:09 +0000
        Re: Are English school children really taught that there are seven colours in the visible spectrum? Wally W. <ww84wa@aim.com> - 2016-06-25 11:11 -0400
          Re: Are English school children really taught that there are seven colours in the visible spectrum? jimp@specsol.spam.sux.com - 2016-06-25 15:38 +0000
            Re: Are English school children really taught that there are seven colours in the visible spectrum? Wally W. <ww84wa@aim.com> - 2016-06-25 12:13 -0400
              Re: Are English school children really taught that there are seven colours in the visible spectrum? jimp@specsol.spam.sux.com - 2016-06-25 16:50 +0000
                Re: Are English school children really taught that there are seven colours in the visible spectrum? Wally W. <ww84wa@aim.com> - 2016-06-25 13:53 -0400
                Re: Are English school children really taught that there are seven colours in the visible spectrum? jimp@specsol.spam.sux.com - 2016-06-25 20:20 +0000
                Re: Are English school children really taught that there are seven colours in the visible spectrum? Wally W. <ww84wa@aim.com> - 2016-06-25 17:08 -0400
                Re: Are English school children really taught that there are seven colours in the visible spectrum? jimp@specsol.spam.sux.com - 2016-06-25 21:40 +0000
                Re: Are English school children really taught that there are seven colours in the visible spectrum? Wally W. <ww84wa@aim.com> - 2016-06-25 18:20 -0400
                Re: Are English school children really taught that there are seven colours in the visible spectrum? jimp@specsol.spam.sux.com - 2016-06-25 22:51 +0000
                Re: Are English school children really taught that there are seven colours in the visible spectrum? benj <benj@nobody.net> - 2016-06-25 19:25 -0400
  Re: Are English school children really taught that there are seven colours in the visible spectrum? Jerry Kraus <jkraus1999@gmail.com> - 2016-06-24 11:46 -0700

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