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In order to use the fish scale, to make a reading or determination (e.g with
the one tick mark primary standard you developed in another post) You must
first make a velocity measurement (determination) that the velocity of the
pointer relative to the tick marks is indeed zero. I don't think this is a
nuisance measurement, it seems to me that it is a required measurement and
therefore fundamental to the operation of such a device.
If I measure the velocity to not be zero (usually done visually and by
casual inspection, but *done none-the-less*); I don't take a reading. I
wait until that measurement becomes zero, (this indicates that the scale has
settled down into equilibrium. It strikes me that this is fundamental to an
equilibrium measurement; how else can I know that equilibrium has been
achieved without making this velocity measurement?).