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The Open Polar Sea was a conjectured ice-free body of water that was believed to encircle the North Pole.Although this theory was widely accepted and served as a basis for many exploratory expeditions aimed at reaching the North Pole by sea or discovering a navigable route between Europe and the Pacific via the North Pole, it was ultimately proven to be untrue.
Polar Sea's hull shape is designed to maximize icebreaking by efficiently combining the forces of the ship's forward motion, the downward pull of gravity on the bow, and the upward push of the inherent buoyancy of the stern. The curved bow and heavy weight allows Polar Sea to force ice edges to break off downward as cusps. This design does not ...
The Open Polar Sea, a hypothesized ice-free ocean surrounding the North Pole Topics referred to by the same term This disambiguation page lists articles associated with the title Polar Sea .
Polar bear in Manitoba, Canada. November 2004. Polar seas is a collective term for the Arctic Ocean (about 4-5 percent of Earth's oceans) and the southern part of the Southern Ocean (south of Antarctic Convergence, about 10 percent of Earth's oceans). In the coldest years, sea ice can cover around 13 percent of the Earth's total surface at its ...
Majestic, increasingly hungry and at risk of disappearing, the polar bear is dependent on something melting away on our warming planet: sea ice. In the harsh and unforgiving Arctic, where frigid ...
Also known as Arctic bases, polar stations or ice stations, these bases are widely distributed across the northern polar region of Earth. Historically few research stations have been permanent. Most of them were temporary, being abandoned after the completion of the project or owing to lack of funding to continue the research.
[9] [18] In breeding plumage, the head, neck, back, and wings are black, with a white trailing edge to the secondary feathers, and white fringes on the scapular feathers, and pure white underparts. The bill is short and stubby. They have a small rounded black tail. The lower face and fore neck become white in winter plumage.
A quick tutorial on the most popular species of bears. For premium support please call: 800-290-4726 more ways to reach us