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    The Wild T4 Theodolite - Don't Sneeze!
    From: David Pike
    Date: 2016 Mar 29, 03:36 -0700

    We read on the net 'The Wild T4 theodolite, with which angles to a tenth of a second of arc could be achieved in the horizontal plane'.  How do they manage that?  That's an almost unbelievable two inches in 60nm.  DaveP

       
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