| Year | 1989 |
| Date | 07-Jul |
| Volume | 163 |
| Issue | 3,852 |
| Page | 46 |
| Category | Keith's Column |
| Part | 13 |
| Title | How the Darn Thing Works. A light-hearted, but useful, look at the Steam Engine |
| Author | Keith Wilson |
| Notes | Early valve control, early puffers & ever-decreasing circles, power and work, smooth problems, a railway marches on its feet, this is where we get a rocket, how many make a million (not many), even Homer can nod |