Τρίτη 16 Μαΐου 2023

Debunking the myth of a "flat Earth" (An elementary introduction to non-Euclidean geometry)


Even if we weren’t able to view the Earth from outer space, an experiment performed on the surface of the Earth would reveal that this surface is not flat, since the axioms of Euclidean geometry do not apply on it.

The simplest possible introduction to non-Euclidean geometry!

Greek version

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