Science

10 09, 2017

Coca leaves – South American medicine

By |2019-04-11T19:59:14-07:00September 10th, 2017|Science, South America|Comments Off on Coca leaves – South American medicine

History of coca leaves: Coca farming in the Andes Mountains When did coca plants evolve? Like potatoes, tomatoes, and tobacco, coca plants grow wild in the Andes Mountains of South America. They probably evolved [...]

8 09, 2017

What is a pontoon bridge? History of science

By |2017-09-08T09:08:30-07:00September 8th, 2017|Science, West Asia|Comments Off on What is a pontoon bridge? History of science

A pontoon bridge from the Column of Marcus Aurelius, in Rome A pontoon bridge is a temporary bridge that you make by lining up a lot of boats crossways across the river, [...]

7 09, 2017

Steel history – medieval to modern steel

By |2018-09-10T06:07:42-07:00September 7th, 2017|Central Asia, Science|Comments Off on Steel history – medieval to modern steel

Steel history: a Safavid steel helmet (Iran, 1500s AD) Medieval steel from India and Iran The wars after the collapse of the Mongol Empire in the 1300s stopped steel production in Uzbekistan and Turkmenistan. [...]

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