History

• Prehistory: The text was developed to this stage over a period of about 5 years as course notes to Physics 131/132 at New Mexico Tech by David J. Raymond, with input from Alan M. Blyth. The course was taught by Raymond and Blyth and by David J. Westpfahl at New Mexico Tech.
• 14 May 2001: First ``copylefted'' version of this text.
• 14 May 2003: Numerous small changes and corrections were made.
• 25 June 2004: More small corrections to volume one.
• 14 December 2004: More small corrections to volume one.
• 9 May 2005: More small corrections to volume two.
• 7 April 2006: More small corrections to both volumes.