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  2. Bedford Level experiment - Wikipedia

    en.wikipedia.org/wiki/Bedford_Level_experiment

    The Old Bedford River, photographed from the bridge at Welney, Norfolk (2008); the camera is looking downstream, south-west of the bridge. The Bedford Level experiment was a series of observations carried out along a 6-mile (10 km) length of the Old Bedford River on the Bedford Level of the Cambridgeshire Fens in the United Kingdom during the 19th and early 20th centuries to deny the curvature ...

  3. Pre-Columbian transoceanic contact theories - Wikipedia

    en.wikipedia.org/wiki/Pre-Columbian_transoceanic...

    Reenactment of a Viking landing in L'Anse aux Meadows. Pre-Columbian transoceanic contact theories are speculative theories which propose that visits to the Americas, interactions with the Indigenous peoples of the Americas, or both, were made by people from elsewhere prior to Christopher Columbus's first voyage to the Caribbean in 1492. [1]

  4. Theory of Phoenician discovery of the Americas - Wikipedia

    en.wikipedia.org/wiki/Theory_of_Phoenician...

    The Ship Sarcophagus: a Phoenician ship carved on a sarcophagus, 2nd century AD.. The theory of Phoenician discovery of the Americas suggests that the earliest Old World contact with the Americas was not with Columbus or Norse settlers, but with the Phoenicians (or, alternatively, other Semitic peoples) in the first millennium BC.

  5. History of navigation - Wikipedia

    en.wikipedia.org/wiki/History_of_navigation

    In his notes on Ptolemy's geography, Johannes Werner of Nuremberg wrote in 1514 that the cross-staff was a very ancient instrument, but was only beginning to be used on ships. [ 36 ] Prior to 1577, no method of judging the ship's speed was mentioned that was more advanced than observing the size of the vessel's bow wave or the passage of sea ...

  6. Maritime history - Wikipedia

    en.wikipedia.org/wiki/Maritime_history

    Magic and Gracie off Castle Garden, painted by James E. Buttersworth, c. 1871. Maritime history is the study of human interaction with and activity at sea. It covers a broad thematic element of history that often uses a global approach, although national and regional histories remain predominant.

  7. Seamanship - Wikipedia

    en.wikipedia.org/wiki/Seamanship

    Seamanship is the art, competence, and knowledge of operating a ship, boat or other craft on water. [1] The Oxford Dictionary states that seamanship is "The skill, techniques, or practice of handling a ship or boat at sea." [2]

  8. Navigation - Wikipedia

    en.wikipedia.org/wiki/Navigation

    The latitude of the North Pole is 90° N, and the latitude of the South Pole is 90° S. [9] Mariners calculated latitude in the Northern Hemisphere by sighting the pole star with a sextant and using sight reduction tables to correct for height of eye and atmospheric refraction. The height of Polaris in degrees above the horizon is the latitude ...

  9. Geography - Wikipedia

    en.wikipedia.org/wiki/Geography

    Geography is an all-encompassing discipline that seeks an understanding of Earth and its human and natural complexities—not merely where objects are, but also how they have changed and come to be. While geography is specific to Earth, many concepts can be applied more broadly to other celestial bodies in the field of planetary science. [2]