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In geometry, a net of a polyhedron is an arrangement of non-overlapping edge-joined polygons in the plane which can be folded (along edges) to become the faces of the polyhedron. Polyhedral nets are a useful aid to the study of polyhedra and solid geometry in general, as they allow for physical models of polyhedra to be constructed from ...
A net comprises threads or yarns knotted and twisted into a grid-like structure which blocks the passage of large items, while letting small items and fluids pass. It requires less material than something sheet-like, and provides a degree of transparency , as well as flexibility and lightness.
Two ice jiggers inside the fish loading and weighing area of J. Waite Fisheries Inc. in Buffalo Narrows Saskatchewan, Canada. These are about eight feet long. The ice jigger also known as prairie ice jigger, or prairie jigger, is a device for setting a fishing net under the ice between two ice holes, invented by indigenous fishermen of Canada in the early 1900s.
Net or netting is any textile in which the yarns are fused, looped or knotted at their intersections, resulting in a fabric with open spaces between the yarns. [1] Net has many uses, and comes in different varieties. Depending on the type of yarn or filament that is used to make up the textile, its characteristics can vary from durable to not ...
Tulle is often used to make gowns. The name comes from Tulle, a city in the southern central region of France. Tulle was well known as a center of lace and silk production in the 18th century, and early tulle netting probably originated in this French city. Tulle netting certainly appeared earlier in Parisian ballet costume than in most other ...
The oldest known fishing net is the net of Antrea, found with other fishing equipment in the Karelian town of Antrea, Finland, in 1913. The net was made from willow, and dates back to 8300 BC. [1] Recently, fishing net sinkers from 27,000 BC were discovered in Korea, making them the oldest fishing implements discovered, to date, in the world. [2]
The net is set on the bottom, or at a distance above it and held in place with anchors or weights on both ends. By adjusting the design these nets can fish in surface layers, in mid water or at the bottom, targeting pelagic, demersal or benthic species. On small boats gillnets are handled by hand. Larger boats use hydraulic net haulers or net ...
A casting net, also called a throw net, is a net used for fishing. It is a circular net with small weights distributed around its edge. The net is cast or thrown by hand in such a manner that it spreads out while it's in the air before it sinks into the water.