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    Re: Coriolis and gyros (second attempt)(typos corrected)
    From: Frank Reed
    Date: 2009 Aug 24, 06:38 -0700

    "Coriolis is not involved since the Pantheon has not moved across the surface 
    of the earth since its foundations were laid in 1758 so its ground speed is 
    zero."
    
    LOL. Gary the pendulum bob is itself in motion, right? Its ground speed is 
    most certainly NOT zero. Likewise in a gyro-compass, its individuaL mass 
    elements are moving at very high speed. If they weren't moving, it wouldn't 
    work. The Coriolis acceleration causes the precession in both cases --in the 
    rotating frame of reference in which the Earth is fixed.
    
    -FER
    
    
    
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