"kepler[s_law_of_planetary_motion"

1.  The spacing of the planets: The solution to a 400-year mystery ; featuring the new fourth law of planetary motion ; the comet S-L9 collisions with Jupiter ... big bang vs. little bangs (Energy series) by Alexander Alan Scarborough (Unknown Binding - 1996) 1 Used & new from $5.29 Books: See all 11 items

2.  Historic Print (S): [Diagram demonstrating Kepler's two laws of planetary motion using orbit of Mars around by Olde Yankee Map and Photo Shoppe Buy new: $171.25 $137.00  Usually ships in 2 to 3 weeks Home & Garden: See all items

3.  Aethro-kinematics by Steven Rado (Plastic Comb - Jun 30, 1994) Buy new: $24.75    2 Used & new from $24.75 Get it by Wednesday, Dec 3 if you order in the next 37 minutes and choose one-day shipping. Eligible for FREE Super Saver Shipping.  (1) Excerpt - page 107: "... one another and using Huygens' equation of centripetal acceleration and Kepler s laws of planetary motion, formulates the Law of Universal Gravitation. 105 ..." Surprise me! See a random page in this book. Books: See all 11 items

4.  Exploring the Solar System: A History with 22 Activities by Mary Kay Carson (Paperback - Feb 1, 2008) Buy new: $17.95 $12.21    34 Used & new from $9.47 In Stock Eligible for FREE Super Saver Shipping.  (2) Excerpt - page 8: "... ideas in his 1687 book Principia Mathematica. In it both Kepler's laws of planetary motion and Galileo 's observa- tions are explained ..." Surprise me!