Å·±¦ÓéÀÖ

[close] The philosophers of Alexandria made huge breakthroughs in science, math, medicine, astronomy and engineering. Euclid perfected geometry. Archimedes invented half a dozen tools and methods we still used today. Herophilos and Erasistratus applied scientific methods to human anatomy, making medical observations that would not become common knowledge for thousands of years. Aristarchus was likewise way ahead of his time when he posited that the Earth rotated around the Sun and not vice versa. Eratosthenes measured the Earth to within a few hundred miles. And Ptolemy created a completely inaccurate model of the universe, which nevertheless could predict the positions of the planets and stars even today. These feats of genius were not created in a vacuum. Amazing as the Alexandrian philosophers were, none of their discoveries would have been possible without relying on the work of those who came before them. These days we take it for granted that everything ever written is accessible online. Yet thousan