Early Usage of Term
In the early days of flying, a distinction was made between a propeller ("pushes the machine") and a tractor-screw ("pulls the machine through the air")
Read more about this topic: Tractor Configuration
Famous quotes containing the words early, usage and/or term:
“The early Christian rules of life were not made to last, because the early Christians did not believe that the world itself was going to last.”
—George Bernard Shaw (1856–1950)
“I am using it [the word ‘perceive’] here in such a way that to say of an object that it is perceived does not entail saying that it exists in any sense at all. And this is a perfectly correct and familiar usage of the word.”
—A.J. (Alfred Jules)
“Punks in their silly leather jackets are a cliché. I have never liked the term and have never discussed it. I just got on with it and got out of it when it became a competition.”
—John Lydon (formerly Johnny Rotten)