Class 13,  Thursday, 2/17/05,

Highlights:
 We did as announced in the Preview below.

Preview:
* Will start the class with a 5-8 min Bonus-pt Exercise, about material discussed in the Tuesday Lecture and Discussion.
(The significance of the Bonus-pt Exercise is to promote the habit of timely study. The assigned bonus points are small. Like last Tursday, we have two exercises, with 0.5 bonus-pt each.)
* Will show Announcement & Reminders, which are also put on the class web.
* Will also review Guidelines for Study & for Exam preparation, 10C's, etc.
* Will finish discussing this week's material. Students should try to finish the reading assignments of the week before the class.
    ** Bosons & Fermions, and exclusion principle
    ** Uncertainty relations.
    ** Quarks in protons and nutrons.
* Will discuss further HW7, and the concepts of centrifugal vs centripetal.
*  Will make summary of the class.
* At the end of the class, will distribute the graded HW6.