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The History of the Sextant - http://www.mat.uc.pt/~helios/Mestre/Novemb00/H61iflan.htm
Transcript of a talk given at the Science Museum of The University of Coimbra. Includes photos of ancient devices. |
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The Seamans Secrets - http://www.mcallen.lib.tx.us/books/seasecr/dseasec1.htm
Text from a book originally printed in 1657 that discusses tides, declinations, and other marine navigation topics. |
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Understanding How Thompson Navigated - http://www.northwestjournal.ca/dtnav.html
About David Thompson's exploration of western Canada and the northwestern United States from 1790 to 1812, using a sextant and compass. From the Northwest Journal. |
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The Columbus Navigation Homepage - http://www.columbusnavigation.com/
The history, navigation, and landfall of Christopher Columbus. Includes a timeline of the life and voyages of Columbus. |
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The History of the Sextant - http://pwifland.tripod.com/historysextant/
The evolution from the earliest instruments to the sophisticated devices used today described and illustrated. |