printing press

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11 09, 2017

Ottoman science – astronomy and clocks

By |2019-09-05T06:01:24-07:00September 11th, 2017|West Asia|0 Comments

Taqi al-Din in his observatory Ottoman scholars built many libraries in Istanbul and in other cities of the Ottoman Empire. They translated many earlier books into Turkish or Arabic, like the works of the Roman astronomer Ptolemy. Ottoman scholars also continued to make their own new investigations. The mathematician Ali Qushji, for instance, came [...]

11 09, 2017

Printing presses in the Ottoman Empire

By |2019-09-05T06:34:51-07:00September 11th, 2017|West Asia|0 Comments

Ibrahim Mutafferika's illustration of American bison (1728 AD) One of the great new inventions of Renaissance Europe was the printing press with movable type. But one of the great disadvantages of the Ottoman Empire was that they didn't start using printing presses. They didn't publish books, pamphlets, or newspapers until much later - [...]

17 08, 2017

Screw – Simple machines – Physics

By |2019-04-24T20:06:22-07:00August 17th, 2017|Physics, What|0 Comments

A cider press with big wooden screws What is a screw? People always count screws as a separate kind of simple machine. But really screws are just one kind of inclined plane. They are such an important kind that we give them their own category. Inclined planes Simple machines All our physics articles Who invented [...]

4 08, 2017

Medieval astronomy in Europe

By |2018-04-24T08:21:21-07:00August 4th, 2017|Medieval, Science|0 Comments

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 [...]

27 07, 2017

Printing spreads around the world

By |2018-04-23T15:45:45-07:00July 27th, 2017|Literature|0 Comments

Qing dynasty court lady reading a handwritten scroll (probably 1700s AD) Printing with movable type first began in China about 1000 AD. It caught on when European printers combined movable type with the alphabet. By 1500 AD Europeans were printing everything they could think of, from Bibles to ancient Greek philosophy to advertising leaflets and posters. Jewish refugees from Spain brought [...]

29 06, 2017

Early European inventions

By |2019-06-02T12:31:48-07:00June 29th, 2017|Northern Europe, Science|0 Comments

Earliest science in Europe A Neanderthal stone awl - early European inventions For a long time, northern Europe was a scientific backwater: new ideas came from other places to northern Europe, and not the other way around. The earliest people came to northern Europe probably about a million years ago. These were not [...]

31 05, 2017

Uighurs – Medieval Central Asia

By |2019-01-12T17:44:20-07:00May 31st, 2017|Central Asia, History|0 Comments

Uighur princesses (Bezelik Cave) Who were the Uighurs? When the Turkic Gokturk Empire in Central Asia collapsed in 742 AD, the Uighurs got their independence. Who were the Gokturks? More Central Asia articles The Uighur Empire Their king, or Khan, Qutlugh Bilge Kol, set up his own smaller empire in what is now [...]