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27 08, 2017

Roman kitchens – houses in ancient Rome

By |2018-04-24T23:37:49-07:00August 27th, 2017|Architecture, Romans|0 Comments

Roman cooking braziers - Picture thanks to VROMA Poor Romans in the countryside most often lived with their whole family in one room of a small apartment building. So they didn't have a separate kitchen. Instead, they cooked over a small fire or on a charcoal brazier, either in the courtyard or in their room (if [...]

25 08, 2017

Baths of Caracalla – Roman architecture

By |2019-02-11T06:57:11-07:00August 25th, 2017|Architecture, Romans|0 Comments

Baths of Caracalla A good example of a Roman bath Roman emperors often built huge public bath buildings for the people of Rome to enjoy. The largest one, and one that also happens to be very well preserved so we can still see it today, was the one built by the Emperor Caracalla, about 200 AD. When you first [...]

10 08, 2017

Early Native American science and inventions – History of Science – North America

By |2018-04-24T08:21:21-07:00August 10th, 2017|Native American, Science|0 Comments

Native American science: Sunflowers growing in a field Domesticating sunflowers Probably the greatest contribution of Native American people to science before 1500 AD was the domestication of several plants, especially sunflowers in eastern North America. These plants were very useful to them. And now they are useful to the people of the whole world. Farmers had to work on this [...]

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 [...]

20 06, 2017

What is charcoal? History of Science

By |2019-03-13T05:31:51-07:00June 20th, 2017|Art, Science|0 Comments

Charcoal history Why use charcoal? Charcoal is a certain kind of half-burnt wood. People use charcoal for fires because it burns hotter and cleaner than wood (less smoky), and more slowly. Your house or workplace stays cleaner. You need charcoal to melt copper and tin ore to make bronze, too. More about combustion [...]

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 [...]

7 06, 2017

History of Gunpowder: Gunpowder in ancient China

By |2019-09-05T06:41:13-07:00June 7th, 2017|China|174 Comments

History of gunpowder: Fireworks Who invented gunpowder? Like the idea of zero, gunpowder developed gradually over time. In 142 AD, during the Han Dynasty, a man named Wei Boyang was the first to write anything about gunpowder. He wrote about a mixture of three powders that would "fly and dance" violently. We aren't [...]

1 06, 2017

What is carbon? Atoms – Chemistry

By |2019-02-28T05:45:37-07:00June 1st, 2017|Biology, Chemistry|0 Comments

Diagram of a carbon atom Where does carbon come from? When a star has changed all of the hydrogen atoms into helium, it begins to convert the helium atoms into carbon atoms and oxygen atoms. All of the carbon in the universe was made inside stars. More about stars What is hydrogen? Science [...]

19 05, 2017

History of Fire

By |2018-04-24T08:21:20-07:00May 19th, 2017|Africa, History, Science|0 Comments

History of fire: San men around a campfire The first campfires Probably people were all still in Africa when they first began to use fire for cooking, about 800,000 or a million years ago. People had always known about fire, because fires happened naturally when there were lightning strikes or sparks from two [...]