Aristotelian Universe
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The Ptolemaic Universe
Claudius Ptolemy lived about five centuries after the Greek philosopher Aristotle’s time. Aristotle’s model for the universe — the first geocentric model, with Earth at the center — was still widely accepted, and Ptolemy sought to improve it. Ptolemy was one…
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Aristotle’s Universe
You might have heard of Aristotle. He’s the guy who said that we are what we repeatedly do. His words are often interpreted to mean that, for instance, a person who farms is therefore a farmer — or a person…
