Tag » Eratosthenes

Eratosthenes and the System of the World

… is the title of Chapter 4 of Peter Thonemann’s book The Hellenistic Age.

The Hellenistic Age is a brief (150 pages) history of Europe and the Near East between the death of Alexander the Great in 323 BCE and the fall of the Ptolemaic kingdom of Egypt on the death of Cleopatra in 30 BCE. 397 kata lagi


Did Adam Know Earth Is Round?

(4 Minute Read)

Is the earth round or flat? How do you know? What did Adam know about it?

Sometimes skeptics call Bible-believers the “Flat Earth Society.” Would Adam be in this club? 1.664 kata lagi


Orpheus-Poet, Philosopher, Sacrificial Victim

Orpheus, the legendary poet, is now well-known for his failed attempt to bring his wife Eurydice back from the underworld (Vergil, Georgics 4.545… 317 kata lagi


"The map is not the territory"*...

Across the board, the Mercator projection of the Earth—which has been our baseline for world maps since the 16th century—skews the actual size of countries so they look bigger (and therefore, more important than they are) when they fall within the middle of the Northern Hemisphere.

341 kata lagi

It's Millersville Time

“Eratosthenes’ model depends on the assumption that the sun is far away and therefore produces parallel rays of light all over the earth. If the sun is nearby, then shadows will change length even for a flat earth. 167 kata lagi

How to Measure the Earth's Circumference

A chapter from my second book focuses on ancient and medieval endeavors to calculate the world’s circumference. The representatives of the two scholarly trends, of the “big” and “small” earth, offer their assessments, sometimes correcting their previous estimations. 113 kata lagi

Medieval Geography

Erikhthonios and Erekhtheus: Folk-Etymology and Premature Ejaculation

Eratosthenes, Catasterismi 1.13

“Euripides also speaks of birth in this way. Because he was filled with lust for her, Hephaistos wanted to have sex with Athena. 498 kata lagi