Inventor 5
He helps trains run smoother and faster.
Who was Elijah McCoy?
He studied engineering outside the United States.
Where is Edinburgh, Scotland?
This had to be done frequently and required the trains to stop.
What is oiling?
He developed and tested his ideas for automating this.
What is lubricating?
It is said that railroad engineers looking to avoid inferior copies of his oil coupler would request it by this name.
What is the "real McCoy"?