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pikuma

Physicists have used satellite images and mathematical modelling to study narrower wakes associated with fast-moving boats. You can read about this discussion here: physicsworld.com/a/physicists-

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pikuma

Here's a quick derivation of how we find the 19.47 degree angle: personal.math.ubc.ca/~cass/cou

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0x10f

@pikuma The page seems to have a formatting issue with the formula. They probably meant
atan(√(3) / √(6) / 2) = atan(√(2) / 4).
asin(1 / 3) seems to give the same result.

Edit:
a = √2
b = 4
c = √(a² + b²) = √18
a / c = 1 / 3
atan(a / b) = asin(a / c)

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