Lecture 1, Jan. 10: Atoms, Molecules.

 * Page 2: some more explanation added to the Bohr-Sommerfeld quantization rule. &mdash; [[Sam]], ~-''<<DateTime(2012-01-11T20:59:40-0800)>>''

Lecture 2, Jan. 12: Basis and Bravais Lattice.

• Classroom activity sheets (with answers)

Lecture 3, Jan 17: Cell and Reciprocal Lattice.

• Classroom activity sheets: submit your answers to me! (optional)

Lecture 4, Jan 19: Diffraction, Bloch sum.

• Complete crystal groups

• Crystal structure data base (Use "Demo", which is often quite good enough.)