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Index/People/Eratosthenes

Eratosthenes

Greek mathematician, geographer, poet, astronomer, librarian and music theorist

Fact-Checks

2 results
Dec 18, 2025
Most Viewed

What evidence do flat earthers cite for rejecting the globe model?

Flat-Earth adherents reject the globe model by pointing to everyday visual experience, selective “experiments,” and a package of conspiracy claims that dismiss space imagery and institutional authorit...

Jan 19, 2026

What experiments and simple observations reliably demonstrate Earth's curvature without relying on space imagery?

A suite of low‑tech, repeatable observations and simple experiments—ranging from Eratosthenes’ shadow measurements to watching ships disappear hull‑first, to level‑laser and pendulum tests—provide rel...