Ptolemy' s Geocentric Model of the Universe

First published at 01:16 UTC on May 28th, 2020.

Ptolemy's Model of the Universe
[Mirrored video: "The word "planet" comes from the Greek word "planetos" meaning wandering star (thus, unlike the Earth, in Ptolemy's model, the Sun and Moon were planets). Because of…

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CategoryScience & Technology
SensitivityNormal - Content that is suitable for ages 16 and over