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Bicorne. Early bicorne from France, c. 1790. The bicorne or bicorn (two-cornered) is a historical form of hat widely adopted in the 1790s as an item of uniform by European and American army and naval officers. Most generals and staff officers of the Napoleonic period wore bicornes, which survived as widely-worn full-dress headdress until the ...
Tricorne. The tricorne or tricorn is a style of hat that was popular during the 18th century, falling out of style by the early 1800s, though not called a "tricorne" until the mid-19th century. During the 18th century, hats of this general style were referred to as "cocked hats". At the peak of its popularity, the tricorne varied greatly in ...
Cockedhat Mountain is a 7,410-foot (2,259 m) mountain in the U.S. state of Alaska, and is one of the tallest mountains in the central Brooks Range. [1] Located in the midst of the protected wilderness of Gates of the Arctic National Park and Preserve, Cockedhat Mountain is approximately 27 air miles from the village of Anaktuvuk Pass, Alaska.
The bicorn is a plane algebraic curve of degree four and genus zero. It has two cusp singularities in the real plane, and a double point in the complex projective plane at . If we move and to the origin and perform an imaginary rotation on by substituting for and for in the bicorn curve, we obtain. {\displaystyle \left (x^ {2}-2az+a^ {2}z^ {2 ...
Geopositioning is the process of determining or estimating the geographic position of an object or a person. [1] Geopositioning yields a set of geographic coordinates (such as latitude and longitude) in a given map datum; positions may also be expressed as a bearing and range from a known landmark. In turn, positions can determine a meaningful ...
Cocked Hat Island, located off the eastern coast of Ellesmere Island, is a part of the Qikiqtaaluk Region of the Canadian territory of Nunavut. The island is located within the Arctic Archipelago, and is a part of the Queen Elizabeth Islands. Cocked Hat Island, shaped like a cocked hat, is located 6 km (3.7 mi) north northwest from Pim Island.
Piloting. Piloting or pilotage[1][2][3][4][5] is the process of navigating on water or in the air [1][2] using fixed points of reference on the sea or on land, usually with reference to a nautical chart or aeronautical chart to obtain a fix of the position of the vessel or aircraft with respect to a desired course or location.
The history of navigation, or the history of seafaring, is the art of directing vessels upon the open sea through the establishment of its position and course by means of traditional practice, geometry, astronomy, or special instruments. Many peoples have excelled as seafarers, prominent among them the Austronesians (Islander Southeast Asians ...