logic

Home » logic

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 [...]

Ancient and medieval science

By |2018-04-25T10:30:30+00:00September 6th, 2017|History, Science|

Chinese star chart possibly dating from the 600s AD, during the T'ang Dynasty Science means "knowing" in Latin. It is the process of learning things about the world. People have always wanted to learn more about their world, and they have tried a lot of different ways to find things out. Some of the ways they tried [...]

René Descartes – European philosophy

By |2018-04-11T18:19:13+00:00August 6th, 2017|Modern Europe, Philosophy|

René Descartes was one of the earliest philosophers of the European Enlightenment, in the early 1600s AD. He was just 8 years younger than Hobbes. While Descartes was growing up, Henry IV was killed, Marie de Medici ruled, and then Richelieu. Descartes' mother died in childbirth when he was a baby. As a Catholic, Descartes went to Jesuit school. [...]

Medieval School – Europe

By |2018-04-11T09:19:36+00:00August 4th, 2017|Medieval, People|

Clerks in the Manessa Codex (1300 AD) In medieval Europe, even fewer kids went to school than in the Roman Empire. People were poorer, and kids had to work in the fields weeding and harvesting and taking care of pigs and chickens. Most people never learned to read or write. Richer people often home-schooled their children, especially girls and children [...]

Jainism – religion in medieval India

By |2017-07-21T09:23:04+00:00July 21st, 2017|India, Religion|

A Jain statue, possibly Mahavira, from about 1200 AD Nobody knows when people first began to follow Jain ideas. Some Jain traditions take their history back to about 2000 BC, in the Harappan period. The first definite evidence of Jain faith, though, comes from about 650 BC, with the Jain leader Parshvanatha. We don't know much for [...]

Who was Anaxagoras? Greek scientist

By |2018-04-23T14:05:11+00:00July 18th, 2017|Greeks, Science|

A map showing Clazomenae Like Thales before him, Anaxagoras was born in what's now Turkey. Anaxagoras was born around 500 BC in a city called Clazomenae, in the Persian Empire. When he was a child, Clazomenae participated in the Ionian Revolt and soon became part of the Athenian Empire. Anaxagoras seems to have been born into a rich family, and he [...]