No, that was not a proof of the globe; just a measurement of its size, assuming the globe. A small, close sun over a flat earth could give the same result for the two locations.
However, several other observations had already proved the globe.
And you could repeat the Eratosthenes experiment in more than two places, so that the flat earth/local sun assumption would have to be discarded.
However, to a dedicated flerfer this will prove nothing, because everything is a NASA hoax (it was even in Eratosthenes' time, apparently).
It's no use wrestling a pig - it will only get you dirty, and the pig enjoys it.
Rudolf
52-30 N 4-40 E
Op 17 juni 2019 om 16:04 schreef [email protected]:
Didn't Eratosthenes show that the earth was round by measuring the diameter?
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