Monday, September 16, 2013
Reminder: Test 1 on Friday the 27th.
Comments on content: Lectures, lecture summaries, and lecture notes; News and special topics; Top Hat questions.
The Sky: The Summer Triangle star pattern.
Today's Topics:
Warmup review question on Top Hat.
Ch. 4: Why do planets move according to Kepler's laws? Because of gravity. Since Newton discovered that, we have been able to predict many more effects caused by gravity...
Isaac Newton:
Motion and Gravity
Assignment: Read sections 4.2, 4.4; Today's class summary and lecture notes.
Spaceweather; APOD; Heavens-Above; Clear Sky Clock; PhysOrg Astronomy News; The Sky at a Glance
