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6 09, 2017

Ancient diseases and doctors – History of medicine

By |2019-05-13T10:53:35-07:00September 6th, 2017|Egypt, Science|0 Comments

Greek doctor letting blood out of a patient because he believes in the four humors: history of medicine How did ancient doctors treat diseases? Ancient doctors tried to cure everyone who was sick, but they did better with some diseases than with others. The history of medicine is full of mistakes as well as [...]

17 08, 2017

Nuclear fission – Physics

By |2018-05-31T11:49:26-07:00August 17th, 2017|Physics|2 Comments

Nuclear fission: Atomic bomb explosions make a "mushroom cloud" Fission reactions are the kind of nuclear reaction we use for nuclear power plants and nuclear submarines, and also to set off a nuclear bomb. With fission reactions, you take very large atoms like uranium and plutonium and smash them apart into smaller atoms. Because it takes a [...]

10 08, 2017

History of tobacco – Tobacco as medicine and money

By |2018-05-30T19:19:04-07:00August 10th, 2017|Economy, North America|0 Comments

History of tobacco: Tobacco plants growing Early history of tobacco Tobacco is an American plant. Like other flowering plants, it probably evolved during the Triassic era, about 250 million years ago. Tobacco plants are related to tomatoes, peppers, eggplants, and potatoes - and to deadly nightshade. (More about tomatoes) All of these are American plants. [...]

7 08, 2017

Enlightenment Science in Europe

By |2019-05-29T07:46:59-07:00August 7th, 2017|Math, Modern Europe, Physics, Science|0 Comments

Gottfried Leibniz, a German mathematician - Enlightenment science What set off the Enlightenment? By 1650 AD, Europeans understood Islamic algebra and trigonometry better. Then they combined that with the exciting invention of the telescope and microscope (thanks to earlier Islamic work on glass). Together, these two new things led to a lot more new scientific discoveries. Medieval and modern glass Medieval [...]

6 08, 2017

David Hume – European philosophy

By |2019-09-04T10:40:27-07:00August 6th, 2017|Modern Europe, Philosophy|0 Comments

David Hume, the European philosopher Who was David Hume? Soon after Hobbes and Locke died, starting in 1739 AD, David Hume published more important books about philosophy. Hume disagreed with Descartes' idea that people did what their reason or logic told them was best. Thomas Hobbes John Locke René Descartes The Enlightenment All our modern Europe articles Hume thought [...]

5 08, 2017

Napoleon – European History

By |2017-08-05T23:25:31-07:00August 5th, 2017|History, Modern Europe|0 Comments

Napoleon in 1806 Right after the French Revolution, a lot of people in France were wondering, what sort of government did they really want? People wanted democracy, but on the other hand they were tired of the Revolution killing so many people and not getting much done. A young general, Napoleon, took advantage of the [...]

5 08, 2017

Early Modern Spain – Philip II

By |2019-04-04T12:37:14-07:00August 5th, 2017|History, Modern Europe|0 Comments

Philip II of Spain Philip II of Spain As the great-grandson of Isabella, who had sent Columbus to America, and the son of Isabella of Portugal, Philip II ruled Spain starting in 1556 AD. Isabella and Ferdinand Isabella of Portugal All our modern Europe articles Philip also controlled huge Spanish territories in South and [...]

22 07, 2017

History of Indian medicine

By |2019-09-15T07:00:43-07:00July 22nd, 2017|India|5 Comments

Indian medicine: the Atharva Veda manuscript: an Indian medical book Early Indian medicine Medicine got an early start in India. Even in the Stone Age, about 5000 BC, dentists at Mehrgahr were drilling people's teeth. They tried to fix people's cavities. That's in the Indus River Valley (now in Pakistan). Where is Mehrgahr? History of medicine The [...]

19 06, 2017

Doctors and medicine in ancient Egypt

By |2019-09-13T06:43:27-07:00June 19th, 2017|Egypt|20 Comments

Ancient Egyptian medicine: Egyptian boys being circumcised, from the tomb of the Vizier Ankhmahor and his wife Mereruka Sixth Dynasty (Old Kingdom, ca. 2300 BC) Best doctors in the Western world Throughout all of antiquity, from the Stone Age to the Islamic period, the doctors of Egypt were the best in the Western [...]