How the Greeks invented a two dimensional astrolabe as a conceptual model of the cosmos, and how it was used.

Reading the sky with the astrolabe

Since the dawn of civilisation, humans have used everyday materials to create mathematical models of the world around them. This album explores the ancient Greeks' astrolabe as a model of the skies; the sundial, to tell the time; Babylonian clay tablets to record wages and trading of sheep; wooden tallies for bulk-buying beer, the Incas' use of knots and string, and the sophisticated number-engine invented by Charles Babbage. This material forms part of The Open University course MST121 Using mathematics.

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Reading the sky with the astrolabe

Reading the sky with the astrolabe

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