Escape from Antarctica - http://www.pbs.org/wgbh/nova/shackleton/navigate/escape.html
Recreates the navigation Ernest Shackleton's crew used on their voyage seeking rescue. |
Evolution of the Sextant - http://www.westsea.com/tsg3/octlocker/octchart.htm
Illustrated article including details about dating. Links to antique instruments offered for sale. |
John Harrison and the Longitude Problem - http://www.nmm.ac.uk/server.php?request=setTemplate:singlecontent&contentTypeA=conWebDoc&contentId=355&viewPage=1&navId=005001000002
The problem, the man, the clocks and the prize. Online exhibit at Royal Observatory Greenwich. |
Longitude at Sea - http://galileo.rice.edu/sci/observations/longitude.html
Describes 17th and 18th century use of eclipses of Jupiter's moons to identify position. |
Secrets of Ancient Navigation - http://www.pbs.org/wgbh/nova/longitude/secrets.html
An overview from the PBS show "The Search for Longitude". |
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. |
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. |
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. |
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. |
Traditional Navigation in the Western Pacific - http://www.museum.upenn.edu/navigation/Intro.html
Covers the role, techniques, and tools of the Carolinian navigator. From the University of Pennsylvania Museum of Archaeology and Anthropology. |