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Sealers
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Sealer may refer either to a person or ship engaged in seal hunting, or to a sealant; associated terms include: Seal hunting * Sealer Hill, South Shetland Islands, Antarctica * Sealers' Oven, bread oven of mud and stone built by sealers around 1800 near Albany, Western Australia * Sealers Passage, marine channel in the South Shetland Islands, Antarctica * Sealers' War, conflict in southern New Zealand started by sealers in 1810 Sealant * Concrete sealers, products applied to concrete to protect it from corrosion * Heat sealer, machine using heat to seal products * Stone sealer, surface treatment product to retard staining and corrosion in natural stone See also *Seal (other) *Sealing (other) Sealing may refer to: Processes * Seal (emblem), applying a seal to a document for authentication * Sealing wax, a wax material of a seal which, after melting, hardens quickly * Duct sealing, the sealing of leaks in air ducts * Induction sealin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sealers' Oven
Sealers' Oven is a man-made structure of mud and stone located on Waychinicup River, Waychinicup Inlet near Albany, Western Australia, Albany, Western Australia. Believed to be a semi-permanent bread oven built by Seal hunting, sealers around 1800, it predates European colonisation of Western Australia by over twenty years, and is therefore one of the States and territories of Australia, state's oldest non-Indigenous Australians, Indigenous artefacts. Built on a granite outcrop about four metres above the high tide line, it is a roughly circular kiln about one metre high and 1.5 metres across. At the top there is an access hole about 30 centimetres across, and there are two small ventilation holes at the base on the eastern side. It is built from granite stones, broad and flat at the bottom but somewhat larger and more circular at the top, suggesting that it may have been partially rebuilt. Sealers' Oven has been known of since the early days of colonisation, but was neither use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sealers' War
The Sealers' War (1810–1821) in southern New Zealand (then part of the Colony of New South Wales), also known as the "War of the Shirt", was a series of often indiscriminate attacks and reprisals between Māori and European sealers. Initially minor misunderstandings between the two peoples quickly led to armed conflict. This resulted in a period of mistrust and animosity between Māori and sealers fueling several conflicts, leading to the deaths of about 74 people and the burning of the village of Otakou on the Otago Peninsula. Records exist from both sides of the conflict but not from any impartial observers.Robert McNab, ''Murihiku'', Invercargill, NZ: 1907,p.263 for the suggestion the attacks arose from a supposedly treacherous nature of Māori.The text of the Creed manuscript is reproduced in Peter Entwisle's, ''Taka: A Vignette Life of William Tucker 1784–1817'',Dunedin, NZ: Port Daniel Press, 2005 as appendix vi, pp. 128–131. Charles Creed, MS papers, 1187/201, Alexand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seal Hunting
Seal hunting, or sealing, is the personal or commercial hunting of seals. Seal hunting is currently practiced in ten countries: United States (above the Arctic Circle in Alaska), Canada, Namibia, Denmark (in self-governing Greenland only), Iceland, Norway, Russia, Finland and Sweden. Most of the world's seal hunting takes place in Canada and Greenland. The Canadian Department of Fisheries and Oceans (DFO) regulates the seal hunt in Canada. It sets quotas (total allowable catch – TAC), monitors the hunt, studies the seal population, works with the Canadian Sealers' Association to train sealers on new regulations, and promotes sealing through its website and spokespeople. The DFO set harvest quotas of over 90,000 seals in 2007; 275,000 in 2008; 280,000 in 2009; and 330,000 in 2010. The actual kills in recent years have been less than the quotas: 82,800 in 2007; 217,800 in 2008; 72,400 in 2009; and 67,000 in 2010. In 2007, Norway claimed that 29,000 harp seals were killed, Russ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sealant
Sealant is a substance used to block the passage of fluids through openings in materials, a type of mechanical seal. In building construction ''sealant'' is sometimes synonymous with ''caulking'' and also serve the purposes of blocking dust, sound and heat transmission. Sealants may be weak or strong, flexible or rigid, permanent or temporary. Sealants are not adhesives but some have adhesive qualities and are called ''adhesive-sealants'' or ''structural sealants''. History Sealants were first used in prehistory in the broadest sense as mud, grass and reeds to seal dwellings from the weather such as the daub in wattle and daub and thatching. Natural sealants and adhesive-sealants included plant resins such as pine pitch and birch pitch, bitumen, wax, tar, natural gum, clay (mud) mortar, lime mortar, lead, blood and egg. In the 17th century glazing putty was first used to seal window glass made with linseed oil and chalk, later other drying oils were also used to make oil-bas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sealers Passage
Sealers Passage is a marine channel between Elephant Island and the Seal Islands, in the South Shetland Islands of Antarctica. It was named by the United Kingdom Antarctic Place-Names Committee The UK Antarctic Place-Names Committee (or UK-APC) is a United Kingdom government committee, part of the Foreign and Commonwealth Office, responsible for recommending names of geographical locations within the British Antarctic Territory (BAT) and ... (UK-APC) in 1971. the passage is a short cut around the north coast of Elephant Island used by sealers in the 1820s. References Channels of the Southern Ocean Elephant Island {{ElephantIsland-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sealer Hill
Sealer Hill is a hill rising to 70 m in the southwest part of Byers Peninsula, Livingston Island in the South Shetland Islands, Antarctica. It surmounts Nikopol Point and Sevar Point to the east-southeast and west-southwest, respectively. The area was inhabited by 19th century sealers. The feature was so named following geological work by BAS in 1975–76, from the presence of at least three crude stone huts built by sealers below the hill. Location The hill is located at , which is 1.28 km west-northwest of Nikopol Point, 1.83 km east-northeast of Sevar Point, 3.49 km east by north of Devils Point, 2.8 km southeast of Point Smellie, 4.07 km southwest of Basalt Lake and 3.96 km south-southwest of Chester Cone Chester Cone is the ice-free peak rising to 188 m in the central part of Byers Peninsula, Livingston Island in the South Shetland Islands, Antarctica surmounting Midge Lake to the northwest. The peak is named after the American Captain Ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Concrete Sealer
Concrete sealers are applied to concrete to protect it from surface damage, corrosion, and staining. They either block the pores in the concrete to reduce absorption of water and salts or form an impermeable layer which prevents such materials from passing. Research from major concrete authorities, including the American Concrete Institute, Portland Cement Association, and the National Ready Mixed Concrete Association confirm that most concrete damage is attributable to surface moisture intrusion. The most pervasive form of concrete damage is surface scaling from freeze/thaw. Other forms of damage include alkali-silica reaction (ASR), chemical intrusion, and corrosion of steel reinforcements. Types In past decades attempts to protect concrete have included sealers ranging from wax to linseed oil. Today, high quality concrete sealers can block up to 99% of surface moisture. There are two main sealer categories: topical sealers (coatings) and penetrating sealers (reactive) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heat Sealer
A heat sealer is a machine used to seal products, packaging, and other thermoplastic materials using heat. This can be with uniform thermoplastic monolayers or with materials having several layers, at least one being thermoplastic. Heat sealing can join two similar materials together or can join dissimilar materials, one of which has a thermoplastic layer. Heat sealing process Heat sealing is the process of sealing one thermoplastic to another similar thermoplastic using heat and pressure. The direct contact method of heat sealing utilizes a constantly heated die or sealing bar to apply heat to a specific contact area or path to seal or weld the thermoplastics together. Heat sealing is used for many applications, including heat seal connectors, thermally activated adhesives, film media, plastic ports or foil sealing. Applications for the heat sealing process Heat seal connectors are used to join LCDs to PCBs in many consumer electronics, as well as in medical and telecommunica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stone Sealer
Stone sealing is the application of a surface treatment to products constructed of natural stone to retard staining and corrosion. All bulk natural stone is riddled with interconnected capillary channels that permit penetration by liquids and gases. This is true for igneous rock types such as granite and basalt, metamorphic rocks such as marble and slate, and sedimentary rocks such as limestone, travertine, and sandstone. These porous channels act like a sponge, and capillary action draws in liquids over time, along with any dissolved salts and other solutes. Very porous stone, such as sandstone absorb liquids relatively quickly, while denser igneous stones such as granite are significantly less porous; they absorb smaller volumes, and more slowly, especially when absorbing viscous liquids. Why seal? Natural stone is used in kitchens, floors, walls, bathrooms, dining rooms, around swimming pools, building foyers, public areas and facades. Since ancient times, stone has been popular ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seal (other)
Seal may refer to any of the following: Common uses * Pinniped, a diverse group of semi-aquatic marine mammals, many of which are commonly called seals, particularly: ** Earless seal, or "true seal" ** Fur seal * Seal (emblem), a device to impress an emblem, used as a means of authentication, on paper, wax, clay or another medium (the impression is also called a seal) * Seal (mechanical), a device which helps prevent leakage, contain pressure, or exclude contamination where two systems join Arts, entertainment and media * ''Seal'' (1991 album), by Seal * ''Seal'' (1994 album), sometimes referred to as ''Seal II'', by Seal * ''Seal IV'', a 2003 album by Seal * ''Seal Online'', a 2003 massively multiplayer online role-playing game Law * Seal (contract law), a legal formality for contracts and other instruments * Seal (East Asia), a stamp used in East Asia as a form of a signature * Record sealing Military * ''Fairey Seal'', a 1930s British carrier-borne torpedo bomber aircra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
