The Astrolabe - The history and uses of the astrolabe, an ancient astronomical computer for solving problems relating to time and the position of the Sun and stars in the sky.The History of the Sextant - Transcript of a talk given at the Science Museum of The University of Coimbra. Includes photos of ancient devices.
The Seamans Secrets - Text from a book originally printed in 1657 that discusses tides, declinations, and other marine navigation topics.
Shackleton's Antarctic Odyssey: Navigation by Sextant - How a sextant works.
Wayfinding, or Non-Instrument Navigation - How Polynesians navigated before the invention of the compass, sextant, or clock.
Understanding How Thompson Navigated - 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.
The Columbus Navigation Homepage - The history, navigation, and landfall of Christopher Columbus. Includes a timeline of the life and voyages of Columbus.
Viking Navigation and Astronomy - How they navigated and an analysis of the accuracy of their tools and techniques.
History of Navigation - Covers techniques used then and now. Summarizes the advances throughout history.
Traditional Navigation in the Western Pacific - Covers the role, techniques, and tools of the Carolinian navigator. From the University of Pennsylvania Museum of Archaeology and Anthropology.
