| # | Episode Title | Description | People | Date | |
|---|---|---|---|---|---|
| 1 | Forbidden Crystal Symmetry: Mathematics and architecture - Roger Penrose | World-renowned mathematician Sir Roger Penrose, Oxford University, describes how crystalline symmetries are necessarily 2-fold, 3-fold, 4-fold, or 6-fold. | Roger Penrose | 04 Dec 2014 | |
| 2 | Forbidden Crystal Symmetry: Mathematics and architecture | World-renowned mathematician Sir Roger Penrose, Oxford University, describes how crystalline symmetries are necessarily 2-fold, 3-fold, 4-fold, or 6-fold. | Roger Penrose | 02 Oct 2014 |