| Year | 1990 |
| Date | 03-Aug |
| Volume | 165 |
| Issue | 3,878 |
| Page | 152 |
| Category | Turbine |
| Part | 4 |
| Title | Cela Ne Peut Pas Marcher (That will never work (Steam turbines)) |
| Author | Pierre Bender (France), edited by Professor D.H.Chaddock |
| Notes | Recounts his practical use of miniature steam turbines. Prometheus - the second engine, turbine blade finish, stronger spur gears |