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:
“Yet, haply, in some lull of life,
Some Truce of God which breaks its strife,
The worldling’s eyes shall gather dew,
Dreaming in throngful city ways
Of winter joys his boyhood knew;
And dear and early friends—the few”
—John Greenleaf Whittier (1807–1892)
“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)
“Here the term ‘language-game’ is meant to bring into prominence the fact that the speaking of language is part of an activity, of a form of life.”
—Ludwig Wittgenstein (1889–1951)