astrolabe

4 08, 2017

Medieval sailing – Ships in medieval Europe

By |2018-10-04T07:02:49-07:00August 4th, 2017|Medieval, Science|Comments Off on Medieval sailing – Ships in medieval Europe

Caravels, about 1500 AD (Livro das Fortalezas de Duarte Damas) Frame-first ship construction The Early Middle Ages - about 500 AD - brought a major change in Mediterranean ship-building. Instead of putting the planks together [...]

16 07, 2017

What is an astrolabe? Greek science

By |2019-02-04T09:56:46-08:00July 16th, 2017|Greeks, Science|Comments Off on What is an astrolabe? Greek science

An Islamic astrolabe (832 AD) Who invented the astrolabe? About 140 BC, the Greek astronomer Hipparchus of Rhodes invented the science of trigonometry. What's trigonometry?  Greek astronomy History of astronomy All our [...]

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