| Year | 2002 |
| Date | 15-Nov |
| Volume | 189 |
| Issue | 4,182 |
| Page | 486 |
| Category | Horology |
| Part | 9 |
| Title | A Ferris Wheel Clock |
| Author | Richard Stephen |
| Notes | Evolution and construction of ball lift mechanism. Archimedes screw, lifting tube, lifting tube cover, fitting the cover in place, track bracket entrance, fitting the entrance track bracket, ball platform |