ROYGCB : Where's Violet?

In 1660, Sir Isaac Newton first observed the visible light passing through a spectrum and described the fundamental colors of the rainbow as ROYGBIV (Red, Orange, Yellow, Green, Blue, Indigo, Violet).

(Sir Isaac Newton)

(ROYGIV)

But according to a physicist and filmmaker named Henry Reich, in the "This Is Not a Rainbow" episode on his Minute Physics channel on Youtube, it is supposed to be ROYGCB (Red, Orange, Yellow, Green, Cyan, Blue.)

(Henry Reich)

"Roses are Red, Violets are Blue And Violet in the rainbow is a supernumerary hue." - Henry Reich, Minute Physics

Violet is actually blue. The blue in the rainbow is actually cyan. Violet is produced from an optical illusion in which blue, when dominated by light colors, more likely appears to be violet. And purple and pink are present in the rainbow?

The rainbow is actually a rain disk.

"Each color of sunlight reflects back in a bright rimmed disk, all of different sizes, which together add up to make a white disk with a colorful rim". - Henry Reich, Minute Physics

The colors of the rainbow result from the refraction of light from different sizes of raindrops. As the amount of raindrops increases, multiple rings appear known as supernumerary arcs.

(Supernumerary Arcs)

Supernumerary arcs appear to be faint inside under the primary bow. The smaller the raindrops, the stronger the supernumerary bows. And when the raindrops have the same size, the rings may overlap.

(Primary Bow)

The secondary red ring overlaps in the primary dark blue. And when you mix red and blue, the result is violet or purple.

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Site References:

https://en.wikipedia.org/wiki/Rainbow

https://en.wikipedia.org/wiki/Newton_disc

This is Not a Rainbow - MinutePhysics (Youtube)

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