lunar eclipse

Home » lunar eclipse

West Asian mathematics – history of math

By |2018-05-10T10:12:08+00:00September 16th, 2017|Science, West Asia|

History of math: Sumerian multiplication table (2700 BC) Cuneiform multiplication table Once people in West Asia figured out how to write down numbers, about 3500 BC, they quickly began to want to use cuneiform to write down other mathematical ideas. (Read more about the invention of numbers) The earliest example of this that we have is from about 2700 BC. It [...]

Science in Central America and South America

By |2018-04-11T18:24:13+00:00September 10th, 2017|Central America, Science, South America|

A rubber ball made by the Olmec people (about 1000 BC) With different natural resources available to them, the people of South America and Central America invented different things than the people of Europe, Asia, or Africa did. One early invention was rubber. The Olmec people invented rubber (in fact the word "Olmec" means "rubber people" in the Aztec language, Nahuatl). The Olmec began to [...]

Eclipse of the Moon – Space science

By |2018-05-31T11:49:25+00:00August 18th, 2017|Physics|

An eclipse of the moon. You can see the curved shadow of the Earth. An eclipse of the moon happens when the Earth gets between the sun and the moon, so the light from the sun can't get to the moon to be reflected towards the Earth. In other words, the shadow of the Earth covers the whole moon. Eclipse [...]

Eclipse of the moon project – Astronomy

By |2018-05-31T11:49:16+00:00August 17th, 2017|Physics|

Looking at an eclipse of the moon The best way to learn about eclipses of the moon is to go outside and look at one. Plus, it's a good excuse to stay up late at night! Mr. Eclipse is a website that will tell you when the next eclipse of the moon is where you live. Eclipses [...]

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 [...]

Ancient Greek science – math, astronomy, medicine

By |2018-08-22T14:21:07+00:00July 18th, 2017|Greeks, Science|

Ancient Greek science: Greek doctor letting blood out of a patient because he believes in the four humors When did Greek science get started? By about 600 BC, ancient Greek people were getting richer from trading between Egypt, West Asia, Carthage, and Europe. Now richer families could afford to send their boys to college. More boys got a good education and became scientists. Soon [...]

Astronomy in Ancient China

By |2018-05-24T11:54:19+00:00June 7th, 2017|China, Science|

Chinese astronomy: A Chinese star chart possibly dating from the 600s AD, during the T'ang Dynasty The Chinese zodiac Chinese scholars began by thinking of the stars, the sun, and the moon as gods. Like the scientists of Mesopotamia, they thought they could use the movements of the stars to predict the future. [...]