Pushing the envelope is a term used to describe when a plane or other aircraft has been taken to or exceed the designed speed limit or normal flying altitude.
Pushing the Salmanilla Envelope was created on 1997-06-10.
Pushing the Envelope - 2001 was released on: USA: 3 April 2001
The cast of Pushing the Envelope - 2002 includes: Rod Sell as Harvey
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Pushing the Envelope - 2008 was released on: USA: 15 February 2008 (Show Off Your Short Film Festival)
Pushing something too far.
Pushing the Envelope - 2002 was released on: USA: 1 May 2002 USA: 10 October 2002 (Austin Film Festival)
Teen Mom 3 - 2013 Pushing the Envelope 1-4 is rated/received certificates of: Netherlands:AL
The drag envelope is the space around a moving object that causes friction, pushing in the opposite direction of where the object is going.
Envelope in this case is an aeronautic (aircraft and piloting) term for the limits in which it's safe to operate the aircraft. "Pushing the envelope" means doing something just a little bit harder/faster etc than what's considered safe and sensible.
Teen Mom 3 - 2013 Pushing the Envelope 1-4 was released on: USA: 2 September 2013 Netherlands: 3 March 2014
The word "envelope" when translated in Tagalog or Filipino (national language of the Philippines) would simply mean "sobre".