Global Positioning System Reference
In-Depth Information
poraneous accounts published in technical journals, pertinent government
documents that have since been declassified, and interviews with key indi-
viduals. Before looking at the competing designs that provided the building
blocks of gps, a short detour is in order. This was not the first time an advance
in accurate timekeeping produced a revolution in navigation. For that story, it
is necessary to go back a few centuries.
Search WWH ::
Custom Search