What are Isaac Newtons major contributions in the realm of understanding motion?
Answers should include Newton’s 3 laws of motion, his law of gravity, and his unification of celestial motion and terrestrial motion: his laws are universal, so natural motion everywhere = constant speed in a straight line. See first few sections of chapter 5 in the online astronomy textbook and the first lecture material (esp. where “Grand Synthesis of Motion” was discussed). Also, the section “A Closer Look at Newton’s Gravity” in chapter 5 of the online astronomy textbook covers the same ideas presented in the lecture.
