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by the orbits of heavenly bodies
## The universe has two regions; the celestial (region past the Moon's orbit) and the terrestrial region-sphere (the Moon's tendency to orbit around the Earth)
## From this theory, Aristotle achieved a distinction between what was understood (astronomy) and his new findings (meteorology)
# The "Four-element Theory"
## The terrestrial region was composed of the four elements: water, earth, fire, and air
## These elements were arranged in spherical strata, with Earth as its center and the

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