HazelNuts39
"Well, at subsonic speeds, it is infinite, in all directions. Any boundary is arbitrary."
AA
"Nope. Wrong again. At the airspeeds encountered in a typical general aviation aircraft, (less than 200 knots) there is no significant compression of the air."
"A meaningless distinction. What matters is that there is relative motion. Which is moving and which is not is completely dependent on the frame of reference, arbitrary, and completely irrelevant."
How is it all of a sudden an energy source is not relevant? It is consistent with your view of Physics as squishy, and dependent on your definitions, definitions that involve a suspension of actual Physical Laws.
Any widely held theory that depends entirely on suspension of fundamentals seems to attract hysterics..
You say...
"A meaningless distinction. What matters is that there is relative motion. Which is moving and which is not is completely dependent on the frame of reference, arbitrary, and completely irrelevant" (my bolding, throughout)
Air is the recipient of added energy, not the source. Watch your landscaper blow debris about with a leafblower, you will perhaps see my point.
The source of added energy is not important? Strange viewpoint from an expert.
Last edited by Lyman; 23rd Oct 2012 at 17:16.