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Asked by daveking24 - 4 years ago
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joensf Level 78
Answered 4 years ago
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who took it out?
rockyabody Level 4
Answered 4 years ago
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As far as I know Indigo is still part of the rainbow and the easiest way to remember the colours of the rainbow is to use the song "ROY G BIV" by " they might be Giants"

R is for red
O is for orange
Y is for yellow
And G is for green
B is for blue
I for Indigo
And V is for violet
And that spells Roy G. Biv

Roy G. Biv is a colorful man
And he proudly stands at the rainbow's end (So you'll see him)
Roy G. Biv is a colorful man
And his name spells out the whole color spectrum (So you'll see him)

Roy G. Biv is a colorful man (So you'll see him)
And he proudly stand at the rainbow's end (So you'll see him)
Roy G. Biv is a colorful man
And his name spells out the whole color spectrum (So you'll see him)

You'll never see a unicorn
But you'll see a rainbow
And inside every rainbow
Is the spectrum of light

You'll never see Roy G. Biv
But he's inside the rainbow
'Cause inside every rainbow
Is the spectrum of light

R is for red
O is for orange
Y is for yellow
And G is for green
B is for blue
I for Indigo
And V is for violet
And that spells Roy G. Biv

Roy G. Biv is a colorful man (So you'll see him)
And he proudly stand at the rainbow's end (So you'll see him)
Roy G. Biv is a colorful man
And his name spells out the whole color spectrum (So you'll see him)

Roy G. Biv is a colorful man (So you'll see him)
And he proudly stand at the rainbow's end (So you'll see him)
Roy G. Biv is a colorful man
And his name spells out the whole color spectrum (So you'll see him)
Compliments from
Richard Level 76 / Retired Dentist
Answered 4 years ago
-
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. The division in distinct colours is an arbitrary convention. It is related to the linguistic question whether the colour terms are mainly culturally determined, and different between people; or biologically determined, and universal for all people (the colour debate). From a physics point of view, the rainbow spans a continuous spectrum of colours -- there are no "bands."

The discrete bands are an artefact of human colour vision.
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