Lecture 9 of Leonard Susskind's course concentrating on Quantum Entanglements (Part 1, Fall 2006). Recorded November 27, 2006 at Stanford University.

1. Weirdness of Quantum Mechanics
2. Basics of Quantum Mechanics
3. Complex Numbers
4. Lecture 4
5. Entangled States
6. Projection Operators and Subspaces
7. Double-Slit Experiment
8. Density Matrix and Probability
9. Lecture 9

This Stanford Continuing Studies course is the first of a three-quarter sequence of classes exploring "quantum entanglements" in modern theoretical physics. The course is taught by Leonard Susskind, the Felix Bloch Professor of Physics at Stanford University.