Arny Krueger wrote:


Sorry Bob, but I'm not buying.

How about this, then:

1) It is the bulk velocity, the flow of air, at the rest
position that propegates out as the velocity wave.

2) The bulk velocity at the rest position is the same as the
surface velocity of the piston.


Bob
--

"Things should be described as simply as possible, but no
simpler."

A. Einstein