BALLS OUT GOVERNOR steam engineTips 565 tubalcain - YouTube
Centrifugal governor - Wikipedia
Balls to the Wall' Doesn't Mean What You Think It Does | by Jim Latham | Exploring History | Medium
Remaking History: James Watt and the Flyball Governor - Make:
balls to the wall - Wiktionary, the free dictionary
Steam engine regulator hi-res stock photography and images - Alamy
TIL "balls out" or "balls to the wall" has nothing to do with testicles. It refers to the governor a steam engine uses when running at full speed. : r/todayilearned
balls to the wall - Wiktionary, the free dictionary
Balls to the Wall' Doesn't Mean What You Think It Does | by Jim Latham | Exploring History | Medium