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bertusgeert

Curve of the earth - 30K? 80K? When?

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This kind of suggests it's sort of not happening even as high as 33,000ft.
http://en.wikipedia.org/wiki/Horizon#Curvature_of_the_horizon



Thanks that is interesting. From your link though I think the 0.056 radians = 3.20856365 degrees which I would have thought was perceptible.

I guess the curvature seen from an airline is probably enhanced by a "fish-eye" effect due to the planes windows distorting the view.
Experienced jumper - someone who has made mistakes more often than I have and lived.

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