| Year | 1998 |
| Date | 06-Nov |
| Volume | 181 |
| Issue | 4,080 |
| Page | 551 |
| Category | General |
| Part | |
| Title | Strobe Dials |
| Author | Bill Stevenson (Minnesota, USA) |
| Notes | Describes a method of measuring rotational speed. Theory, timing fine tuning, from paper to dial, mounting strobe dials, acknowledgements |