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    Re: telegraphic longitude article
    From: Jan Kalivoda
    Date: 2003 Dec 27, 12:44 +0100

    If I understood George Huxtable well, both places A and B worked with time 
    pulses sent through the line only by the chronometer in A and marked their 
    meridian passages against A-pulses (obtained by telegraph in B). The shift of 
    the time of a meridian passage of the same star from A to B against A-pulses 
    gave the longitude difference between A and B without any need of knowing the 
    real signal delay in the wire.
    After the accurate longitude difference of B to Greenwich (or any other place 
    A) had been known, one could compare his chronometers in B with the time in A 
    by meridian passages at B without blocking the telegraph line.
    Thank you, George.
    Jan Kalivoda

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