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Rene Descartes discovered that rainbows have a scientific and mathematical element to them that could explain their presence. He was able to determine that the whole universe could be explained through science and math.

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βˆ™ 9y ago
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βˆ™ 12y ago

René Descartes showed by using geometric construction and the law of refraction that the angular radius of a rainbow is 42 degrees (i.e., the angle subtended at the eye by the edge of the rainbow and the ray passing from the sun through the rainbow's centre is 42°).

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Q: What did Rene descartes discover about rainbows and how their formed?
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