Submitted by Oheligud t3_yh9wwi in explainlikeimfive
RRumpleTeazzer t1_iucwxo8 wrote
Reply to comment by Marlsfarp in ELI5: Why are the colours in rainbows in separate lines? by Oheligud
This is more than just artistic. Blue and red are close to an octave apart (a factor of 2 in frequency).
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