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One Flue Harpoon
{{no footnotes, date=February 2014 The one-flue harpoon or one-flue iron (sometimes "single" instead of "one" is used) is a type of harpoon used in whaling after its introduction in the early 19th century when it replaced the two-flue harpoon. Due to the asymmetric design of the head for which it is named, the one-flue harpoon was less likely to cut its way out of the whale meat and blubber, and was therefore more successful in whaling. In the mid-19th century the one flue harpoon was replaced by the toggling harpoon, which was an iron version of the ancient design used in the Arctic The Arctic ( or ) is a polar regions of Earth, polar region located at the northernmost part of Earth. The Arctic consists of the Arctic Ocean, adjacent seas, and parts of Canada (Yukon, Northwest Territories, Nunavut), Danish Realm (Greenla ... by the native whale hunters there. The toggling iron harpoon was even more successful and rapidly phased out the use of the "common harpoon" (a term wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harpoon
A harpoon is a long spear-like instrument and tool used in fishing, whaling, seal hunting, sealing, and other marine hunting to catch and injure large fish or marine mammals such as seals and whales. It accomplishes this task by impaling the target animal and securing it with barb or toggling claws, allowing the fishermen to use a rope or chain attached to the projectile to catch the animal. A harpoon can also be used as a weapon. Certain harpoons are made with different builds to perform better with the type of target being aimed at. For example, the Inuit have short, fixed foreshaft harpoons for hunting seals at their breathing holes while loose shafted ones are made for attaching to the game thrown at. History In the 1990s, harpoon points, known as the Semliki harpoons or the Katanda harpoons, were found in the Katanda_Territory, Katanda region in Zaire (called the Democratic Republic of the Congo today). As the earliest known harpoons, these weapons were made and used 90, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whaling
Whaling is the process of hunting of whales for their usable products such as meat and blubber, which can be turned into a type of oil that became increasingly important in the Industrial Revolution. It was practiced as an organized industry as early as 875 AD. By the 16th century, it had risen to be the principal industry in the Basque coastal regions of Spain and France. The industry spread throughout the world, and became increasingly profitable in terms of trade and resources. Some regions of the world's oceans, along the animals' migration routes, had a particularly dense whale population, and became the targets for large concentrations of whaling ships, and the industry continued to grow well into the 20th century. The depletion of some whale species to near extinction led to the banning of whaling in many countries by 1969, and to an international cessation of whaling as an industry in the late 1980s. The earliest known forms of whaling date to at least 3000 BC. Coasta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Two-flue Harpoon
The two-flue harpoon or two-flue iron (which, together with the one-flue harpoon, were known as common harpoons) is a type of harpoon used in whaling Whaling is the process of hunting of whales for their usable products such as meat and blubber, which can be turned into a type of oil that became increasingly important in the Industrial Revolution. It was practiced as an organized industry ... for at least 1000 years. It appears in works of art dating back to the 14th century. In the early 19th century the design was modified, and the one-flue harpoon was created. By removing half of the point, the chance of the point cutting its way back out of the whale was greatly reduced. See also * Toggling harpoon External linksTwo flue irons history Harpoons {{Whale-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asymmetry
Asymmetry is the absence of, or a violation of, symmetry (the property of an object being invariant to a transformation, such as reflection). Symmetry is an important property of both physical and abstract systems and it may be displayed in precise terms or in more aesthetic terms. The absence of or violation of symmetry that are either expected or desired can have important consequences for a system. In organisms Due to how cells divide in organisms, asymmetry in organisms is fairly usual in at least one dimension, with biological symmetry also being common in at least one dimension. Louis Pasteur proposed that biological molecules are asymmetric because the cosmic .e. physicalforces that preside over their formation are themselves asymmetric. While at his time, and even now, the symmetry of physical processes are highlighted, it is known that there are fundamental physical asymmetries, starting with time. Asymmetry in biology Asymmetry is an important and widespread ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whale Meat
Whale meat, broadly speaking, may include all cetaceans (whales, dolphins, porpoises) and all parts of the animal: muscle (meat), organs (offal), skin (muktuk), and fat (blubber). There is relatively little demand for whale meat, compared to farmed livestock. Commercial whaling, which has faced opposition for decades, continues today in very few countries (mainly Iceland, Japan and Norway), despite whale meat being eaten across Western Europe and colonial America previously. However, in areas where dolphin drive hunting and aboriginal whaling exist, marine mammals are eaten locally as part of a subsistence economy: the Faroe Islands, the circumpolar Arctic (the Inuit in Canada and Greenland, related peoples in Alaska, the Chukchi people of Siberia), other indigenous peoples of the United States (including the Makah people of the Pacific Northwest), St. Vincent and the Grenadines (mainly on the island of Bequia), some of villages in Indonesia and in certain South Pacific islan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blubber
Blubber is a thick layer of vascularized adipose tissue under the skin of all cetaceans, pinnipeds, penguins, and sirenians. Description Lipid-rich, collagen fiber-laced blubber comprises the hypodermis and covers the whole body, except for parts of the appendages. It is strongly attached to the musculature and skeleton by highly organized, fan-shaped networks of tendons and ligaments, can comprise up to 50% of the body mass of some marine mammals during some points in their lives, and can range from thick in dolphins and smaller whales, to more than thick in some bigger whales, such as right and bowhead whales. However, this is not indicative of larger whales' ability to retain heat better, as the thickness of a whale's blubber does not significantly affect heat loss. More indicative of a whale's ability to retain heat is the water and lipid concentration in blubber, as water reduces heat-retaining capacities, and lipid increases them. Function Blubber is the primary fat st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toggling Harpoon
The toggling harpoon is an ancient weapon and tool used in whaling to impale a whale when thrown. Unlike earlier harpoon versions which had only one point, a toggling harpoon has a two-part point. One half of the point is firmly attached to the thrusting base, while the other half of the point is fitted over this first point like a cap and attached to the rest of the point with sinew or another string-like material. When the harpoon is thrust into an animal, the top half of the point detaches and twists horizontally into the animal under the skin, allowing hunters to haul the animal to ship or shore. This harpoon technology lodges the toggling head of the harpoon underneath both the animal's skin and blubber, and instead lodges the point in the muscle, which also prevents the harpoon slipping out. History Toggling harpoons are first associated with the Red Paint culture of New England and Atlantic Canada (c. 5500 BC to c. 4000 BC). The earliest known toggling harpoon head was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arctic
The Arctic ( or ) is a polar regions of Earth, polar region located at the northernmost part of Earth. The Arctic consists of the Arctic Ocean, adjacent seas, and parts of Canada (Yukon, Northwest Territories, Nunavut), Danish Realm (Greenland), Finland, Iceland, Norway, Russia (Murmansk Oblast, Murmansk, Siberia, Nenets Autonomous Okrug, Nenets Okrug, Novaya Zemlya), Sweden and the United States (Alaska). Land within the Arctic region has seasonally varying snow and sea ice, ice cover, with predominantly treeless permafrost (permanently frozen underground ice) containing tundra. Arctic seas contain seasonal sea ice in many places. The Arctic region is a unique area among Earth's ecosystems. The cultures in the region and the Arctic indigenous peoples have adapted to its cold and extreme conditions. Life in the Arctic includes zooplankton and phytoplankton, fish and marine mammals, birds, land animals, plants and human societies. Arctic land is bordered by the subarctic. De ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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