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Speargun Speargun in use by a diver. A speargun is a ranged underwater fishing device designed to launch a tethered spear or harpoon to impale fish or other marine animals and targets. Spearguns are used in sport fishing and underwater target shooting. The two basic types are pneumatic and elastic (powered by rubber bands). Spear types come in ...
In some parts of the world, in order to limit the catch, the Hawaiian sling is the only type of spearfishing gear permissible. [4] Hawaiian slings are especially popular among divers who want a more challenging hunt, or those operating in areas where triggered spearguns are banned, such as the Bahamas, Okinawa, Japan and the Netherlands.
It was also referred to as Constructo or Build-O in English-speaking countries and Tecc in the Netherlands. Unlike Erector/Meccano, which was based on Imperial/customary measurements, Merkur used metric. There is 1x1 cm raster of connection holes on building parts, connected by M3.5 screws.
Spearfishing with scuba gear is widespread among recreational divers. Restrictions in Norway are limited to anadrome species, like Atlantic salmon, sea trout, and lobster. [31] In Mexico a regular fishing permit allows spearfishing, but not electro-mechanical spearguns. Spearfishing with scuba gear is illegal and the use of power heads as well.
A leister used for spearfishing. A leister is a type of spear used for spearfishing. [1] Leisters are three-pronged with backward-facing barbs, historically often built using materials such as bone and ivory, with tools such as the saw-knife. [2] [3] In many cases it could be disassembled into a harpoon allowing for greater functionality. [4]
Inuit hunter with harpoon in Kayak, Hudson Bay, c. 1908–1914 Unaaq ᐅᓈᖅ, a harpoon used by Inuit, 172 cm (68 in; 5.64 ft) long, MHNT. A harpoon is a long, spear-like projectile used in fishing, whaling, sealing, and other hunting to shoot, kill, and capture large fish or marine mammals such as seals, sea cows, and whales.
A silver Peruvian atlatl from the 12th-15th century Atlatl in use. A spear-thrower, spear-throwing lever, or atlatl (pronounced / ˈ æ t l æ t əl / ⓘ [1] or / ˈ ɑː t l ɑː t əl /; [2] Nahuatl ahtlatl [ˈaʔt͡ɬat͡ɬ]) is a tool that uses leverage to achieve greater velocity in dart or javelin-throwing, and includes a bearing surface that allows the user to store energy during the ...
To allow the rifle's mechanism to work under water, there had to be room for the flow of the water pushed aside by moving parts and by the gas produced by the propellant explosive in the cartridge. The APS rifle was accepted for use in the mid-1970s. One special improvement was a perforated gas tube, and in the sighting.
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