1. Let’s review Kepler’s Laws
Let’s review Kepler’s Laws. Review:  see if you can tell what these are simulating:  Both the geocentric and heliocentric models tried to explain the SAME observations.  See if you see the similarity in these two simulations:  (show solsys.mov)

2. Exam 1 is next Thursday Sept. 9, after some class discussion
Closed book, no notes, no assistance
Multiple choice and true/false
Answer on a Scantron form (pencil)
Results will be posted on WesternOnline over the weekend.

3. Check out my website frontpage.wiu.edu/~bmd111
Exam dates! Exam # 1 on Sept. 9
Class notes with links to:
Additional material on outside websites
Audio recording of the class (.wav)
Powerpoints are in a directory, see website.
I will ONLY use WesternOnline for posting grades. Nothing else appears there.