Please feel free to contact me, if you have any problems whatsoever in this course: or if you're doing well, and just want to talk about the wonders and mysteries of the Universe. It's in my interest, and I care, that you do well!

News, updated 2008 September 3:

• Homework 1 (the Math Exercise), on pages A3-A4 of the (solar yellow) Class Notes, is due during the first five minutes of class in class on Friday, September 12. Sorry, but no late work can be accepted.
  
  
  
• Please bring your copy of the (solar yellow) Class Notes to every class, and take notes in it during class.
  
  
  
• PSci 21 labs will begin on September 8-9.
  Meet in the lab classrooms (McLane 258 and 264)
  at the regular lab times (5:30 or 7:30 p.m.), and do:
  
  
  Lab 1, Star Names, Maps, and Constellations.
  
  Be sure to read the lab before arriving, well enough to be ready for a quiz.
  
  Bring to all labs:
  • The blue PSci 21 lab manual
    
  • The Stars, by H. A. Rey
    
  • A clear plastic ruler
    
  • A calculator
    
  • A flashlight (even for labs in the lab classrooms like the September 8 and 9 labs), preferably with a red filter for night vision, although the lab instructors should have red plastic for this.
  
  
  
• Read, by Wednesday, September 10:
  • Pages 39-61 of the (solar yellow) Class Notes;
    
  • Chapter 1 of Astronomy, by Dinah Moche';
    
  • Pages 9-35, 66-72, 108-121, and 127-135 of The Stars, by H. A. Rey.