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BillyGerent t1_jdcsuzz wrote

It actually is brighter. The dark region beyond the rainbow is called Alexander's Band. Good explainer of the physics

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sbvp t1_jdcwx1b wrote

The video confirms what i was saying. I am confused

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BillyGerent t1_jdd01xv wrote

Rainbows are not simple! It says that white sunlight is reflected back from inside/under the rainbow, but not above/outside the rainbow (until we get to the colour-inverted secondary rainbow).

[Edit: deleted repeated info about Alexander's Band]

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