THE CONTROLLING THE POWER OF STEAM MACHINES Hannavy, John creator author. text -uk 2021 2021 monographic eng 160 pages : color illustrations, color photographs, color plans ; 29 cm. THE FIRST BOOK TO EXPLORE THE HISTORY OF THE CENTRIFUGAL GOVERNOR -AN EARLY ENGINE MANAGEMENT SYSTEMILLUSTRATED WITH OVER 200 PHOTOGRAPHS, ENGRAVINGS, PLANS AND DIAGRAMSFROM CHRISTIAAN HUYGENS' FIRST ESSAYS ON CENTRIFUGAL FORCE IN 1673, THE BOOK SPANS MORE THAN 250 YEARS OF THE SPINNING BALLS' adult JOHN HANNAVY Governors (Steam-engine) 621.197 9781399090889 PPAK 230104 20230104130114.0 eng