Diffraction Lecture 6: 2D Plane Group Symmetry
26:55
Diffraction Lecture 8: Space Group Symmetry Part 2
21:39
Diffraction Lecture 1: Translational Symmetry in Two Dimensions
28:31
2D symmetry example
38:42
Plane groups - International Crystallographic Tables
25:03
Diffraction Lecture 5: Point Groups
27:33
Diffraction Lecture 7: Space Group Symmetry Part 1
38:48
Lesson 3: Surfaces - Euler s Characteristic
9:19