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DuPont made public in 1938 that their company had invented nylon. [1] This new invention was the first synthetic fiber, fabrics that are commonly used in textiles today. [2] In 1939, DuPont began marketing nylon monofilament fishing lines; however, braided Dacron lines remained the most used and popular fishing line for the next two decades, as early monofilament line was very stiff or "wiry ...
Permendur rods. Permendur is a cobalt-iron soft ferromagnetic alloy with equal parts of cobalt and iron which is notable for its high magnetic saturation level. [1] [2] Its saturation flux density of around 2.4 tesla is the highest of any commercially available metal.
Fishing line with hooks attached. A fishing line is any flexible, high-tensile cord used in angling to tether and pull in fish, in conjunction with at least one hook.Fishing lines are usually pulled by and stored in a reel, but can also be retrieved by hand, with a fixed attachment to the end of a rod, or via a motorized trolling outrigger.
Fishing with a fishing rod. A fishing rod is an additional tool used with the hook, line and sinker. A length of fishing line is attached to a long, flexible rod or pole: one end terminates with the hook for catching the fish. Early fishing rods are depicted on inscriptions in ancient Egypt, China, Greece and Rome.
Braided lines often have 1/3 to 1/4 the diameter of mono or fluorocarbon lines at a given test breaking strength. Therefore, it is easy to fit much longer braided line on a spool than monofilament or fluorocarbon line for the same strength. This is very important for deep sea fishing, since reels don't have to be very big to accommodate long lines.
A fluoropolymer is a fluorocarbon-based polymer with multiple carbon–fluorine bonds. It is characterized by a high resistance to solvents, acids, and bases. The best known fluoropolymer is polytetrafluoroethylene under the brand name "Teflon," trademarked by the DuPont Company.
The following discussion mostly applies to metals, especially steels, which are well studied. Work hardening occurs most notably for ductile materials such as metals. Ductility is the ability of a material to undergo plastic deformations before fracture (for example, bending a steel rod until it finally breaks).
The production process of Toledo steel had been kept a secret until the 20th century. Toledo steel is two different types of steel, one high and one low in carbon content, that are forged together. Since the steels that were being forged together had different carbon content, one is considered soft steel and the other is hard steel.