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Re: Feeling Acceleration

On Tue, 8 Apr 1997, Rauber, Joel Phys wrote:

... And if the fluid accelerates wrt those
structures, one feels the acceleration; or if you prefer the pressure of the
fluid against those structures, at this level the distinction is semantic.
...

To say the distinction is semantic is to say that the distinction between
the kinematical quantity acceleration (defined only relative to a specific
reference frame you choose to use) and the dynamical quantity pressure
(which will feel the same whatever reference frame you choose for
measuring acceleration) is semantic. I simply cannot accept this, and I
believe that not making the simple distinction between kinematics and
dynbamics contributes to widespread confusion.

...
2) I've never seen a force sensor yet that doesn't work by first measuring
acceleration.
...

Is there a consensus on this list on the validity of this statement? It
has been made repeatedly before, and as far as I recall, without
challenge. I would really like to know, because if there is a consensus
in its favor, further discussion of the matter is rather pointless.

A. R. Marlow E-MAIL: marlow@beta.loyno.edu
Department of Physics, Box 124 PHONE: (504) 865 3647 (Office)
Loyola University 865 2245 (Home)
New Orleans, LA 70118 FAX: (504) 865 2453