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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 ...
It is an art because of the skill that the navigator must have to avoid the dangers of navigation, and it is a science because it is based on physical, mathematical, oceanographic, cartographic, astronomical, and other knowledge. Marine navigation can be surface or submarine.
In the social studies curriculum, there are a variety of different courses that may be offered depending on school district. For example students may take a geography class, a government class, or a world history class. [54] In the science curriculum, ninth grade students are required, in most areas, to take biology.
In the European medieval period, navigation was considered part of the set of seven mechanical arts, none of which were used for long voyages across open ocean. Polynesian navigation is probably the earliest form of open-ocean navigation; it was based on memory and observation recorded on scientific instruments like the Marshall Islands Stick Charts of Ocean Swells.
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 ...
Indian Ocean trade has been a key factor in East–West exchanges throughout history. Long-distance maritime trade by Austronesian trade ships and South Asian and Middle Eastern dhows, made it a dynamic zone of interaction between peoples, cultures, and civilizations stretching from Southeast Asia to East and Southeast Africa, and the East Mediterranean in the West, in prehistoric and early ...
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.
Homer describes a circular world ringed by a single massive ocean. The works show that the Greeks by the 8th century BC had considerable knowledge of the geography of the eastern Mediterranean. The poems contain a large number of place names and descriptions, but for many of these it is uncertain what real location, if any, is actually being ...