theodolite :» The following important experiment has recently been tried at Brighton, in Sussex. On the new or Western Pier a good theodolite was fixed, at an elevation of 30 feet above the water, and directed to a given point on the pier at Worthing, a distance of at least …
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The earth is flat (7)
A good theodolite was placed on the northern bank of the canal, midway between Welney Bridge and the Old Bedford Bridge, which are fully six miles apart, as shown in diagram, fig. 7. The line of sight from the “levelled” theodolite fell upon the points B, B, at an altitude, …
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