| Year | 2006 |
| Date | 29-Sep |
| Volume | 197 |
| Issue | 4,283 |
| Page | 396 |
| Category | Hot Air |
| Part | |
| Title | Beam Stirling Engine with Regenerator |
| Author | Kjeld Hoejfeldt (Denmark) |
| Notes | Reawakened his boyhood interests. Displacer, power cylinder and piston, flywheel, furnace and burner, first run, later results |