| Clue | Source | Date |
|---|---|---|
| Study of automatic control systems | Puzzler Backwords | 16 Apr 2025 |
| Study of automatic control systems | Puzzler Backwords | 25 Jul 2024 |
| Science of communications and automatic control systems | Mirror Quiz | 15 Dec 2023 |
| Science of communications and control systems | The Times Concise | 26 Oct 2021 |
| Study of control systems and science overturned by breaking recent limits to biology | The Telegraph Toughie | 09 Sep 2020 |
| Science comparing computers with man's nervous system | ||
| Ersatz-brain study |