| Clue | Source | Date |
|---|---|---|
| In 1927, Erwin ____ replaced Max Planck as Berlin University's physics professor | The Times Specialist Sunday | 22 Sep 2024 |
| Physicist with whom 1 Across shared the 1933 Nobel Prize in Physics | ||
| Pickled herrings and cod man remembered for his cat? | The Telegraph Toughie | 27 Sep 2023 |
| Physics master from staff in boarding school: German |