Beef on Nostr: "The farther north we travel, the greater number of southerly stars are hidden and ...

"The farther north we travel, the greater number of southerly stars are hidden and the greater number of northerly stars revealed. Hence it is clear that the convexity of the earth, by casting successive parts into shadow, fully proves that the shape is spherical.

In addition, if we sail towards mountains, from any direction whatsoever, their magnitudes are observed to increase gradually, due to the convexity of the surface of the earth."

-Claudius Ptolemy, 2nd Century AD