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Tires
A tire (American English) or tyre (British English)[1] is a ring-shaped vehicle component that covers the wheel’s rim to protect it and enable better vehicle performance. Most tires, such as those for automobiles and bicycles, providetraction between the vehicle and the road while providing a flexible cushion that absorbs shock.
The materials of modern pneumatic tires are synthetic rubber, natural rubber, fabric and wire, along with carbon blackand other chemical compounds. They consist of a tread and a body. The tread provides traction while the body provides containment for a quantity of compressed air. Before rubber was developed, the first versions of tires were simply bands of metal that fitted around wooden wheels to prevent wear and tear. Early rubber tires were solid (not pneumatic). Today, the majority of tires are pneumatic inflatable structures, comprising a doughnut-shaped body of cords and wires encased in rubber and generally filled with compressed air to form an inflatable cushion. Pneumatic tires are used on many types of vehicles, including cars, bicycles, motorcycles, buses, trucks, heavy equipment, and aircraft. Metal tires are still used on locomotives and railcars, and solid rubber (or other polymer) tires are still used in various non-automotive applications, such as some casters, carts, lawnmowers, and wheelbarrows.
Huntingdon
Huntingdon is a borough in (and the county seat of) Huntingdon County, Pennsylvania, United States. It is located along the Juniata River, approximately 32 miles (51 km) east of Altoona and 98 miles (158 km) west of Harrisburg. It is the largest population center near Raystown Lake, a winding, 28 miles (45 km) long flood-control reservoir managed by the U. S. Army Corps of Engineers. The borough is located on the main line of the Norfolk Southern (formerly Pennsylvania) Railroad, in an agricultural and outdoor recreational region with extensive forests and scattered deposits of ganister rock, coal, fire clay, and limestone. Historically, the region surrounding Huntingdon was dotted with iron furnaces and forges, consuming limestone, iron ore and wood (for charcoal production) throughout the 19th century. Dairy farms dominate the local agriculture. The town is a regular stop for the Amtrak passenger service which connects Harrisburg with Pittsburgh.
Huntingdon is home to Juniata College, a private liberal arts college founded by members of the Church of the Brethren in 1876, and branch campuses of DuBois Business College and Penn Highlands Community College. In adjoining Smithfield Township (across the Juniata River) are the regional headquarters of the Pennsylvania Game Commission (Southcentral Division) and the Bureau of Forestry (Rothrock State Forest). State Game Lands 322 extends north from Huntingdon Borough in the direction of Petersburg. Public parks are the George N. Weaver Memorial Park (ball field and playground) at the end of 16th Street, Portstown Park along the Juniata River, and Blair Field bordering Standing Stone Creek. Historic Blair Park, directly across the same stream, is owned and managed by a nonprofit group; it contains a gazebo, and a level hiking and biking trail. A vintage chapel within the park is used by the congregation of Epiphany of Our Lord Orthodox Church.