Understanding Planetary Motion Seven Key Players.
Astro 101 Fall 2013 -- Lecture #2. Ancient Observers Noticed the “Wandering Stars” (e.g., planets) … They saw that sometimes they had “retrograde” motion.
The Scientific Revolution KEY IDEA In the mid-1500s, scientists began to question accepted beliefs and make new theories based on experimentation.
EARLY PLAYERS IN ASTRONOMY. The Really Early Days Astronomy began the first time a Cro Magnon (early homo sapien) walked out at night, looked up at.
The Scientific Revolution. Before 1500, few questioned the Bible and Greek philosophers Aristotle & Ptolemy… What was true and false about the universe.
Directions: Read carefully through ALL of the slides presented (total of 18; on a 15 second timer per slide); TAKE BRIEF NOTES on each of the 13 Astronomers.
The Scientific Revolution
Astro 101 Fall 2013 -- Lecture #2
