Astronomy 2021A/B Chapter 1-11: UWO 2021 Astronomy (Intelligent Life and the Universe) CHAPTER 1-11 Textbook Notes
10 Oct 2018
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Chapter 1: the science of life in the universe. It was easy to assume that the earth was a flat, motionless surface material of science) The origin of greek science traced back to the philosopher thales. The first person to address the question, what is the universe made of . Used geometry to solve engineering and scientific problems: greeks understood that an explanation about the world could not be right if it disagreed with observed facts. Sphere) around earth: consists of a central earth surrounded by the celestial sphere, suggested earth"s surface must be curved (incorrectly guessed earth to be a cylinder, rather than a sphere) Suggested that earth goes around the sun. Recognized that a sun-centered system offers a much more natural explanation for apparent retrograde motion: stellar parallax: annual shifts in stellar position. The copernican revolution: 1543: nicholas copernicus published de revolutionibus orbium coelestium, revived aristarchus"s radical suggestion of a sun-centered solar system.
