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There are at least 100 specific application areas for geotextiles that have been developed; however, the fabric always performs at least one of four discrete functions: separation, reinforcement, filtration, and/or drainage.
Track segments (i.e., trackshoes) that incorporate grouser bars are known as grouser shoes, and typically include one to three grousers. [3] Grousers are commonly used on construction vehicles such as bulldozers, loaders, and excavators. Grousers may be permanently attached to, or formed as a single piece with, the track shoe, or they may be ...
Basic equipment worn by most football players include a helmet, shoulder pads, gloves, shoes, and thigh and knee pads, a mouthguard, and a jockstrap or compression shorts with or without a protective cup. Neck rolls, elbow pads, hip pads, tailbone pads, rib pads, and other equipment may be worn in addition to the aforementioned basics.
The concept of spiked and studded shoes for other sports began to emerge as well in the late 19th century. In the 1890s, a British Company (now known as Reebok), developed the earliest known spiked leather running shoes. [4] Cleats began to be used in the United States in the 1860s when metal spikes were first used on baseball shoes. [5]
Early research (Bathurst and Jarrett, 1988) [13] found that cellular confinement reinforced gravel bases are "equivalent to about twice the thickness of unreinforced gravel bases" and that geocells performed better than single sheet reinforcement schemes (geotextiles and geogrids) and were more effective in reducing lateral spreading of infill under loading than conventional reinforced bases.
These boots also sometimes had metal studs or tacks put on the bottom, so players would have more grip and stability. [ 2 ] [ 3 ] In the later part of the 19th century, the first ever football-specific boot was designed, made of thick and heavy leather that ran right to the ankle for increased protection; the first boot weighed 500 grams (18 oz ...