Milky Way

Home/Tag: Milky Way
3 10, 2017

Science in Islamic Africa – medieval African science

By |2019-08-21T09:21:51-07:00October 3rd, 2017|Africa|0 Comments

Medieval African science: The walls of Timbuktu, in Mali, West Africa Medieval African science In the 700s AD, the Islamic Empire conquered North Africa and began to trade a lot with East Africa. Islamic government did not allow women to work in science or medicine. But there were a lot of men in North Africa and East Africa, and in the area [...]

19 08, 2017

What’s the sun made of? – Astronomy – Science

By |2018-04-24T14:46:25-07:00August 19th, 2017|Physics|0 Comments

The sun from space The Sun is a star, just like billions of other stars in the universe. Our Sun probably formed a little more than four and a half billion years ago, just a little bit before the planets formed around it. It's not one of the older stars in the Universe. Probably some of [...]

19 08, 2017

What are stars made of? Astronomy, physics

By |2018-05-31T11:49:32-07:00August 19th, 2017|Physics|0 Comments

What are stars made of? This is just one of the stars: the sun from space The first stars The earliest stars probably formed only a few hundred thousand years after the Big Bang that started the universe - maybe about 13.5 billion years ago. Stars are the oldest big objects in the Universe. (More [...]

18 08, 2017

Main sequence stars – Astronomy

By |2018-05-31T11:49:32-07:00August 18th, 2017|Physics|0 Comments

Main sequence stars: A starry sky with the Milky Way galaxy (thanks to Bernd Nies) What is a main sequence star? Nine out of ten stars that you see in the sky are main-sequence stars, and our sun is one of them. (More about the sun) Most main-sequence stars probably started out as brown dwarfs, and then succeeded [...]

18 08, 2017

What is a galaxy? – Astronomy – Space science

By |2019-06-29T09:19:08-07:00August 18th, 2017|Physics|0 Comments

The galaxy M 100, seen through the Hubble telescope What is a galaxy? A galaxy is a group of millions of stars that are relatively near each other. Most stars seem to be in one or another galaxy. Earth's own star, the Sun, is in the Milky Way galaxy. What is the sun made of? What are [...]

27 07, 2017

Medieval Islamic science

By |2019-10-07T07:26:55-07:00July 27th, 2017|Islam|0 Comments

Medieval Islamic science: Al Tusi's diagram of linear motion from circular motion Indian and African science In the Early Middle Ages, before the formation of the Islamic Empire, Buddhists ran the world's biggest universities. One was in India, at Nalanda. Another was in what is now Pakistan, at Taxila. Medieval Islamic science built on this Indian scientific tradition. [...]

27 07, 2017

Medieval Islamic astronomy

By |2018-04-23T10:04:24-07:00July 27th, 2017|History, Islam, Science|0 Comments

Islamic astronomers taking observations West Asian astronomers had been world leaders in astronomy for thousands of years before the Islamic conquests in the 600s AD. In the last centuries BC, West Asian astronomers had already figured out that the earth was a ball, and that the earth went around the sun, and how big the earth was, and that the moon went [...]

27 07, 2017

al Tusi – Discoveries of Islamic astronomy

By |2017-07-27T08:30:46-07:00July 27th, 2017|Islam, Science|0 Comments

Al Tusi in his observatory (ca. 1259 AD) Nasir al Tusi was born in Iran in 1201 AD, as the Seljuk Empire was falling apart. The Seljuks were Turkic people. But al Tusi, like most of the people living near him, was of Iranian descent. He spoke Persian at home. He was from a Shiite, Sufi family. Al Tusi's father died when he [...]