Summary of text [comment] page 80

[Of course, trains are well and good until something goes wrong.

Did the know-it-alls who named ‘the engine bearing unit of a train’ the ‘locomotive’ also know that the word ‘loco’ is slang for ‘crazy’? Word historians take note!

When something goes wrong, the actualities of the boiler and the valves merge into a single problem. The piston does not work!

What could the issue be? The fuel? The flow of water and steam? The pressure? The regulators and valves?]