HIST 121 Lecture Notes - Lecture 1: Scientific Revolution, Geocentric Model, Quadrivium
15 Jan 2017
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A profoundly connected universe (earth centred, heaviest object in the universe: aristotle"s crystalline spheres. Sublunar: everything below the moon, the mutable world. Superlunar worlds: above the moon, perfect and unchangeable. Perfect circular movement: explained natural phenomena: objects fall towards the heavy centre of the earth. Nature governed by sympathy and analogy ex. sunflowers and walnuts (smarter) Mistaken, but logical inductive and deductive reasoning. Astronomy (law of stars) vs. astrology (study of stars) Wednesday, january 11, 2017: the interconnected universe. Classical, medieval and early modern astrology: one of the medieval disciplines of the quadrivium, a study of cause and effect: the relationship of macrocosm and microcosm. Impact of the planets on earth and humanity. The fragmentation of astronomy: classical and medieval astronomy. Ptolemaic and copernican systems: considered only convenient/hypothetical theories for astronomers, not widespread, practical applications, mathematically-based models. The ptolemaic system (epicentres and epicycles) still circular: explained the issues of seasons and retrograde motion (planets moving backwards)
