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Artifact
Chronometers like this one by Parkinson & Frodsham were used on the U.S. Exploring Expedition (1838-1842).
Artifact
Mask, Oregon Territory
Illustration
Mice, Funafuti Atoll (Mus exulans, Mus vitiensis)
Artifact
The Motorola LGT 1000 was used for better accuracy by scientists.
Artifact
This mid-1950s era VOR receiver helped usher in a new era of all-weather navigation capability for light aircraft at moderate cost.
Document
Lt. Micajah G. L. Claiborne's remarks about navigation observations during the expedition.
Illustration
Parrots, Fiji (Aprosmicturs splendens, Aprosmictus personatus)
Artifact
Pipe, Oregon Territory
Illustration
A sketch by Charles Wilkes during the U.S. Exploring Expedition.
Illustration
All three (positioning, navigation, and timing) are used together with map data and other information (weather or traffic data, for instance) in modern navigation systems.
