Pushing any type of boundary.
This phrase comes from the aeronautical industry where the envelope refers to the safe performance limits of an aircraft - the envelope is the collection of curves that describe the maximum performance of an aircraft.
Apparently the expression was popularized by Tom Wolfe's 1979 book The Right Stuff, and the subsequent 1983 film adaptation, which recounts the story of the first seven astronauts selected for the NASA space program.
Become a Member and discover books that entertain, engage & enlighten!
Only when we are no longer afraid do we begin to live
Click Here to find out who said this, as well as discovering other famous literary quotes!
Solve this clue:
and be entered to win..
Visitors can view some of BookBrowse for free. Full access is for members only.
Your guide toexceptional books
BookBrowse seeks out and recommends books that we believe to be best in class. Books that will whisk you to faraway places and times, that will expand your mind and challenge you -- the kinds of books you just can't wait to tell your friends about.