Roger Bacon

Home » Roger Bacon

Logic and the scientific method

By |2018-05-31T11:49:22+00:00September 6th, 2017|Science|

An eclipse of the moon. You can see the curved shadow of the Earth. Once people have seen that something happens through observation, sooner or later it will occur to them to ask why it happens. And is there any way to prove that it will happen the same way every time? Sumerians developed advanced math to [...]

Roger Bacon – Medieval science

By |2018-04-24T08:21:21+00:00August 4th, 2017|Medieval, Science|

Roger Bacon's diagram of a human eye Roger Bacon was born in England maybe about 1210 AD. It was late in the reign of King John. (That's the one in Robin Hood.) England was just beginning to get richer from raising and selling high quality wool cloth on the Silk Road. In addition, a warmer climate - the Medieval Warm period - was making [...]

Medieval astronomy in Europe

By |2018-04-24T08:21:21+00:00August 4th, 2017|Medieval, Science|

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 the stars. Astrologers tried to predict the future. Monks wanted to figure out the right day to celebrate Easter, or the right times for prayers. And a few [...]

Thomas Aquinas – Dominican monk

By |2018-04-24T09:23:15+00:00August 4th, 2017|Medieval, Philosophy|

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 and Maimonides, Aquinas was a Christian. Thomas Aquinas was born in southern Italy, at his father's castle, in 1224 or 1225 AD. It was just after the death of Francis [...]

History of Gunpowder: Gunpowder in ancient China

By |2018-10-02T09:40:12+00:00June 7th, 2017|China, Science, War|

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 the first to write anything about gunpowder. He wrote about a mixture of three powders that would "fly and dance" violently. We aren't [...]

What is a camera obscura? – Chinese Science

By |2018-05-28T22:31:08+00:00June 7th, 2017|China, Science|

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 Mozi may have been the first person to write about a camera obscura, about 400 BC - anyway, Mozi's camera is the first [...]