Origin_Astronomy
Demonstrating Parallax (1 of 10)
Appear to Slow to a Stop and Move Backward (2 of 10)
Planet Moves in a Small Circle (3 of 10)
Predicting the Positions of the Planets (4 of 10)
Copernican Explanation of Retrograde Motion (5 of 10)
Tycho Brahe's Model of the Universe (6 of 10)
Diagramming Kepler's Three Laws (7 of 10)
Significance of Kepler's Three Laws (8 of 10)
Newton's Three Laws of Motion (9 of 10)
Principle of Orbital Motion (10 of 10)
