Rabu, 11 Oktober 2017

How the West Was Measured: Mountaintop Calculations Meant Fewer Ground Surveys

Surveyors faced obstacles but had geometry on their side. Soon after the Civil War ended, the United States began a major national surveying project, its object to measure a line of latitude (the 39th parallel north) across the continent. The project required the establishment of stone survey stations atop some of the West’s highest peaks, …

The post How the West Was Measured: Mountaintop Calculations Meant Fewer Ground Surveys appeared first on HistoryNet.



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