Hellenistic Science
Articles tagged Hellenistic Science.

How Eratosthenes Measured the Earth With a Stick
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.

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

How Eratosthenes Measured the Earth With a Stick
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.

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



