Because my voice recorder malfunctioned 15 minutes into my Lecture on
Copernicus on 2007 October 9, I've added this recording of my Copernicus
lecture from Autumn Quarter 2006. It is the same basic material, but
since I generally improvise on a basic outline, there will be some
differences. Personally, I liked this year's lecture better, but this
will at ... Show More
Oct 2007
Lecture 12: The Wanderers
How do the planets move across the sky? This lecture discusses the
motions of the 5 naked-eye planets (Mercury, Venus, Mars, Jupiter, and
Saturn) as seen from the Earth. We introduce the major configurations
of the planets, and then discuss their apparent retrograde motions. The
... Show More
42m 34s