An introduction and review of the basic notation and physical units we will be

using throughout this course. In particular, we will be using the

Metric (SI) system for lengths, masses, times, and temperatures, and

special astronomical units for distances (AU and Light Years) and masses

(Earth Masses and Solar Masses) appropriate when discussing

interplanetary and interstellar scales. Recorded live on 2009 Sep 24 in

Room 1005 Smith Laboratory on the Columbus campus of The Ohio State

University.