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Lecture 1 - Course Introduction, Archaeoastronomy and the Sun.docx

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Department
Natural Science
Course
NATS 1745
Professor
Robin Metcalfe
Semester
Winter

Description
Lecture 1 – Course Introduction,Archaeoastronomy and the Sun Thursday, January 09, 2014 1. Course Introduction - Provides a general overview of the course 1) Archaeoastronomy - Ancient ruins have revealed to us that prehistoric societies understood the cycles of the sky well enough to predict the positions of the Sun, Moon, planets and stars 2) Astronomy ofAncient Civilizations - Chinese, Mayans, Egyptians and Babylonians kept detailed records of celestial events for practicing astronomy - From their records we have made discourses about celestial phenomenon like comets and supernovae 3) Ancient Greek astronomy - Began tradition of finding scientific explanations for nature; also first known cosmologists 4) Copernicth Revolution - In the 15 century, Copernicus would rise to challenge geocentric cosmology ofAristotle that dominated up until that point 5) First Modern Astronomers - (1) Tyco Brahe (1546-1601) - (2) Johannes Kepler (1571-1630) - (3) Galileo Galilei (1564-1642) 6) Isaac Newton - Isaac Newton (1643-1727) 7) Unveiling the Solar System - Between late 1700s and early 1900s, our full solar system was revealed 8) Birth of Stellar Astrophysics - During late 1800s and early 1900s, discourses about the interactions between light and atoms gave rise to our knowledge of life cycles of stars 9) Discovery of Galaxies - 20 Century astronomers like Edwin Hubble used large telescopes to discover that our galaxy, the Milky Way, is not alone 10) 20 Century Cosmology - Albert Einstein (1879-1
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