| Year | 2002 |
| Date | 05-Apr |
| Volume | 188 |
| Issue | 4,166 |
| Page | 176 |
| Category | Horology |
| Part | 1 |
| Title | A Ferris Wheel Clock |
| Author | Richard Stephen |
| Notes | Fascinating clock powered by steel balls. Modus operandi, clock train, workshop equipment required, general comments |