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- Navigation Methods: Celestial Navigation
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Illustration
Deer, North America (Cervus macrotis)
Photograph
NEED CAPTION
Artifact
Made by Jesse Ramsden in 1775, this machine permitted the automatic and highly accurate division of a circle into fractions of degrees of arc. The machine led to mass production of precision octants and sextants.
Illustration
Dolphins (Lagenorhnychus lateralis, Delphinus borealis)
Photograph
An astrodome on a Douglas C-47, circa 1944.
Photograph
A navigator making sightings from the nose of a U.S. Navy Douglas PD-1.
Photograph
Developed navigation equipment
Illustration
This illustration from 1766 depicts the improved escapement in Le Roy’s marine clock.
Artifact
This 1938 mechanical computer was a remarkable attempt to automate complex navigational processes.
Artifact
This 1938 mechanical computer was a remarkable attempt to automate complex navigational processes.
