Spoken Past

Hellenistic Science

Articles tagged Hellenistic Science.

How Eratosthenes Measured the Earth with a Stick and Changed Science Forever

How Eratosthenes Measured the Earth With a Stick

Jan 08-By Caiden Pannell

In 240 BC, Eratosthenes used shadows, geometry, and a 5,000-stadia walk to calculate Earth’s circumference, and came within 2% of modern estimates.

A Papyrus Found In A Mummy's Skull Proves Greeks In Egypt Knew The Earth Orbits The Sun 1,800 Years Before Copernicus

Did Aristarchus Discover Heliocentrism Before Copernicus?

Aug 30, 2025-By Caiden Pannell

Aristarchus of Samos proposed a Sun-centred universe eighteen centuries before Copernicus. Archimedes is the only reason we know he did.

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