twaron
61Sail — A sail is any type of surface intended to generate thrust by being placed in a wind mdash;in essence a vertically oriented wing. Sails are used in sailing.History of sailsThe ships built at around 10,000 BC were just crude log rafts or dug out… …
62Spider silk — Spider silk, also known as gossamer, is a protein fiber spun by spiders. Spiders use their silk to make webs or other structures, which function as nets to catch other creatures, or as nests or cocoons for protection for their offspring. They can …
63Helmet — For other uses, see Helmet (disambiguation). A woman wearing a cycling helmet A helmet is a form of protective gear worn on the head to protect it from injuries. Ceremonial or symbolic helmets (e.g., English policeman s helmet) without protective …
64Tendon — For other uses, see Tendon (disambiguation). Tendon One such tendon in the Human Body, the Achilles tendon. Latin tendo Cod …
65Spandex — fiber Spandex or elastane is a synthetic fibre known for its exceptional elasticity. It is strong, but less durable than natural Latex, its major non synthetic competitor. It is a polyurethane polyurea copolymer that was co invented in 1959 by… …
66Mohair — For the band, see Mohair (band). An Angora goat Mohair English pronunciation: /ˈmoʊhɛər/ usually refers to a silk like fabric or yarn made from the hair of the Angora goat …
67Manila hemp — For the plant the fiber is from, see Abacá. The packaging of manila hemp (Musa textilis) into bales at Kali Telepak, Besoeki, East Java. Man …
68Jib — For other uses, see Jib (disambiguation). A jib is a triangular staysail set ahead of the foremast of a sailing vessel. Its tack is fixed to the bowsprit, to the bow, or to the deck between the bowsprit and the foremost mast. Jibs and spinnakers… …
69Physics of firearms — From the viewpoint of physics (dynamics, to be exact), a firearm, as for most weapons, is a system for delivering maximum destructive energy to the target with minimum delivery of energy on the shooter. The force and momentum delivered to the… …
70Yak — For the Nigerian footballer, see Yakubu Aiyegbeni. For other uses, see Yak (disambiguation). Yak A domestic yak in Nepal Conservation status …
