Logic and the scientific method
An eclipse of the moon. You can see the curved shadow of the Earth. Logic tells you the earth is round. Making predictions Once people have seen that something happens [...]
An eclipse of the moon. You can see the curved shadow of the Earth. Logic tells you the earth is round. Making predictions Once people have seen that something happens [...]
Roger Bacon's diagram of a human eye When did Roger Bacon live? Roger Bacon was born in England maybe about 1210 AD. It was late in the reign of King John. (That's the one [...]
Astrolabe in Hebrew, probably from Spain (1300s AD) In the early Middle Ages, most people in Europe were too poor to have much time for astronomy. But some people were still interested in [...]
Naples, with Mount Vesuvius in the background Like Ibn Rushd and Maimonides, Thomas Aquinas was a great thinke who tried to figure out the relationship between science and religion. But unlike Ibn Rushd [...]
History of gunpowder: Fireworks Who invented gunpowder? Like the idea of zero, gunpowder developed gradually over time. In 142 AD, during the Han Dynasty, a man named Wei Boyang was [...]
What is a camera obscura? This is a large camera obscura: a dark room with an image projected into it. Who invented the camera obscura? The Chinese philosopher and scientist [...]