Instruct: Given a question, retrieve documents that answer the question.
Query: What are basketball's made out of?
Nearly all basketballs have an inflatable inner rubber bladder, generally wrapped in layers of fiber and then covered with a surface made either from leather (traditional), rubber, or a synthetic composite. As in most inflatable balls, there is a small opening that allows the pressure to be increased or decreased.
Unlike latex-based technology underlying the modern lawn-tennis ball, the game still uses a cork-based ball very close in design to the original balls used in the game. The diameter balls are handmade and consist of a core made of cork with fabric tape tightly wound around it and covered with a hand-sewn layer of heavy, woven, woollen cloth, traditionally Melton cloth (not felt, which is unwoven and not strong enough to last as a ball covering). The balls are traditionally white, but around the end of the 20th century "optic yellow" was introduced for improved visibility, as had been done years earlier in lawn tennis. The balls are much less bouncy than lawn tennis balls, and weigh about (lawn tennis balls typically weigh 2 ounces).
Until such time as a special ball is specifically made for elle, tennis balls are used. The fur on the ball could be removed/shaved before use but removing of fur to make the rubber visible is strictly prohibited. A rubber ball or another light ball could be used instead of a tennis ball, but it is of paramount importance that the ball used should be common to both teams.
In tennis, the strings are the part of a tennis racquet which make contact with the ball. The strings form a woven network inside the head (or "hoop") of the racquet. Strings have been made with a variety of materials and possess varying properties that have been measured, such as dynamic stiffness, tension retention, thickness (gauge), string texture (shape of the string), and rebound efficiency.
Purcell designed a low, bleached-white canvas-and-rubber badminton sneaker for the B.F. Goodrich Company, known as PF Flyers in 1935. The shoe would provide better support on badminton courts because of a steel shank embedded in its heel. For most of the twentieth century, Jack Purcell's tennis sneaker was required wear on all grass and clay tennis courts in the United States and, at least for a time, on newer, all-weather asphalt courts as well. Unlike basketball sneakers (running shoes hadn't been invented yet), Jack Purcell sneakers had perfectly flat soles, unmarred by grooves that could tear up clay or grass and skew the elasticity of tennis ball bounces. Everyone from the youngest learner to professional and amateur tennis stars on the international tour wore Purcell sneakers; no other company made them. In 1972, Converse purchased PF Flyers (now owned by New Balance), along with the trademark rights of Jack Purcell sneakers. When Nike purchased Converse in 2003, Jack Purcell sneakers were kept in production, and is still manufactured today. Purcell-type basketball sneakers are now no different from Converse Chuck Taylor All-Stars, except they have the trademark blue across their toes. Classic Purcell tennis sneakers are unchanged in appearance from their heyday in the 1950s and 1960s, when they were first nicknamed "Blue Tips" and "Smilies", but they have risen in price from about $20 in 1965 to as much as $150 or more today. Converse "Jack Purcell" basketball sneakers are also popular, but more for their vintage fashion appeal than for athletic use.
The Baloncesto Superior Nacional, which is played under FIBA rules, currently consists of 8 teams, of which the most successful have been Leones de Ponce, Atléticos de San Germán and Vaqueros de Bayamón with 14 titles each. The league has produced players that have distinguished themselves in the NBA, EuroLeague, Spain's ACB, and other tournaments throughout the world. Among them, NBA players Butch Lee, José Ortiz, Ramón Rivas, Daniel Santiago, Carlos Arroyo and José Juan Barea started their careers playing for BSN teams.
Basketball was introduced in Argentina in 1912 by the "Asociación Cristiana de Jóvenes" (Young Men's Christians Association – YCMA), with the first Federation created in 1921 to organise the competitions. In 1929, the Argentine Basketball Federation ("Confederación Argentina de Basketball") was established. The body currently controls the Argentina national team.
The practice of basketball in Argentina was started by "Asociación Cristiana de Jóvenes (Young Men's Christian Association – YCMA)" in 1912. Canadian Professor Paul Phillip was in charge to teach basketball at the YMCA headquarters in Paseo Colón Avenue, Buenos Aires.
The first basketball clubs in Argentina were YMCA, Hindú and Independiente. By 1912 the first basketball games were held by YMCA headquarters in Buenos Aires. In 1913 the first games between Argentine and Uruguayan YCMA are played. One year later, the YCMA organised the first internal championship. In 1919 the Uruguay national team played a game v. local team Nacional, in Buenos Aires.
The Brooklyn Nets are an American professional basketball team based in Brooklyn, New York. They are a member of the Atlantic Division of the Eastern Conference in the National Basketball Association (NBA). The team plays its home games at the Barclays Center. The franchise was founded as the New Jersey Americans in 1967, and was one of the eleven original American Basketball Association (ABA) teams. In its second ABA season, Arthur Brown, the team owner, moved the team to Long Island and renamed it the New York Nets. The team won ABA championships in 1974 and 1976. When the ABA merged with the NBA in 1976, the Nets were one of four ABA teams admitted into the NBA. The team was moved to the Rutgers Athletic Center in New Jersey; after the 1976–77 NBA season, the team was renamed the New Jersey Nets. Since they joined the NBA, the Nets have won 4 divisional championships, 2 conference championships and appeared in the playoffs 16 times. The Nets moved to Brooklyn in 2012, and now play as the Brooklyn Nets.
The Argentina national basketball team represents Argentina in basketball international competitions, and is controlled by the Argentine Basketball Federation. (). The national team was formed in 1921, playing its first game v. Uruguay that same year.
In this way the conditions were met for the creation in 1946 of the Albanian Basketball Federation (FSHB). Now our country had a specialized institution that followed and led the development of the Albanian basketball in the country, but also formally represent our country in foreign relations for basketball, but their connections abroad were still held by the Albanian Sports Federation, which kept ties with federations international. Basketball Federation at that time functioned as a genuine federation, because the missing bodies that such a federation and had the powers it now has. In 1947, only a year after its creation, ASF joined the International Basketball Federation (FIBA). Deserves to highlight the fact that it was one of the 48 federations prior to affiliated national in FIBA since its thememelimi in 1932, 211 such that it has now, which shows that basketball in our country known and played much more see in many other countries.
In 1955, Fred Schaus and Alex Mumford devised the idea of rolling out an elaborate gold and blue carpet for Mountaineer basketball players to use when taking the court for pre-game warm-ups. In addition, Mountaineer players warmed up with a special gold and blue basketball. The university continued this tradition until the late 1960s when it died out, but former Mountaineer player Gale Catlett reintroduced the carpet when he returned to West Virginia University in 1978 as head coach of the men's basketball team.
Animal intestine is the most resilient material used to make tennis strings. It has better tension retention than any other material, and also is softer than any other material used for tennis strings. It provides the most energy return, meaning it is the most efficient string. It remains soft at high tensions while other materials tend to stiffen dramatically. This allows gut string to enable players to string rather tightly to improve ball control without losing much rebound efficiency (power) and without greatly increasing impact shock, which can hurt the elbow and other joints.
Basketball became a popular sport in Puerto Rico, due in part to the BSN, which has been around since the 1930s. During the early 1980s, with many games shown on television, the sport's popularity increased. There is also a women's professional league, which is affiliated to the BSN. Street basketball is also popular among Puerto Rico's youth.
The Barclays Center is the new home arena of the National Basketball Association's Brooklyn Nets, and the NHL's New York Islanders which was purchased by a group led by principal developer Bruce Ratner with the intention of making it and the arena the centerpiece of the whole project. This brought major league professional sports to Brooklyn for the first time since the Brooklyn Dodgers moved to Los Angeles, California after the 1957 season. The arena’s design once included an ice skating rink and a green roof. An NBA basketball team now owned primarily by Russia's second richest man Mikhail Prokhorov, the Nets began playing at the Barclays Center arena in 2012. Formerly the New Jersey Nets, the Nets re-branded themselves when they moved to the Barclays Center. Prokhorov is an avid basketball fan, and, with 80 percent ownership in the Nets, he has become the first Russian owner of a major U.S. professional sports franchise. The deal was necessary for Ratner, who was risking losing tax-exempt financing and the Barclays naming-rights deal if he did not break ground within three months' time.
Basketball contests at the 2000 Summer Olympics were held from 16 September 2000 to 1 October 2000. Games took place at the Sydney SuperDome and the Dome in Sydney, Australia. The United States claimed the gold medals in both the men's and women's competitions.
The material of choice for producing these screws is stainless steel typically 18-8 (303). At the tip of the screw most commonly a stainless steel ball is either pressed or glued into place to provide a single point contact for the surface being moved. Common usage has shown the glue method of attaching the ball to be troublesome in many applications as some commonly used glues (Super Glue) tend to outgas and degrade over time in this application.
Rules exist within each sport to help prevent cerebral contusions and traumatic brain injuries. However, individual athletes are the best prevention against their own injuries. In a game, athletes notice when they have the symptoms of a cerebral contusion and should take themselves out of the game. It may be hard for medical personnel or coaches to notice when a player has a traumatic brain injury, so it is in the player’s best interest to be removed from play. In hockey, traumatic brain injuries constitute 10%-15% of all head injuries. With the high percent of injuries being traumatic, extensive design improvements have been made to helmets. These improvements reduce the risk of cerebral contusions by providing more padding around the skull and a chin strap that keeps the helmet snug. In baseball, major improvements to helmets have been made to protect batters from the impact a baseball can have when hitting their head. Helmets, before this major improvement, were designed to withstand a velocity of 70 mph from a pitch or foul ball. Since the company Rawlings’ new design, helmets can withstand a velocity of 100 mph and have further padding around the softer parts on the side of the skull.
Natural biodegradable polymers are formed in nature during growth cycles of all organisms. When searching for natural fibers to replace synthetic materials in athletic shoes, the major natural biodegradable polymer that offers the most potential are polysaccharides. Starch is a polysaccharide that is useful because it readily degrades into harmless products when placed in contact with soil microorganisms.
The currently available models have ball capacities of 50-60 balls. Both ball speed range and ball frequencies are adjustable and vary from 30 to 150 km/h and 1.5-12 balls per second, respectively, with the .75 second interval suitable for quick volleys and 10 second interval for other strokes. Changing the speed and frequency of the ball coming out of the machine is intended to help the player to visualize real-game situations where the ball does not always come back into play at the same speed. The adjustable speed is also useful for increasing the speed as the player becomes more skillful.
The Brooklyn Nets, a professional basketball team based in the New York City borough of Brooklyn, was founded in 1967 and initially played in Teaneck, New Jersey, as the New Jersey Americans, later the New Jersey Nets. They are a member of the Atlantic Division of the Eastern Conference in the National Basketball Association (NBA), as well as an original member of the American Basketball Association (ABA). In 2012 they moved to Brooklyn and were renamed the Brooklyn Nets.
Basketball courts come in different sizes. In the National Basketball Association (NBA), the court is . Under International Basketball Federation (FIBA) rules, the court is slightly smaller, measuring exactly . In amateur basketball, court sizes vary widely. The baskets are always above the floor (except possibly in youth competition). Basketball courts have a three-point arc at both baskets. A basket made from behind this arc is worth three points; a basket made from within this line, or with a player's foot touching the line, is worth 2 points. The free-throw line, where one stands while taking a foul shot, is located within the three-point arc at 15 feet from the basket. A foul shot is worth 1 point, but if a shot is made from the foul line while in play it is still worth 2 points.
ㅢ is one of the Korean hangul. The Unicode for ㅢ is U+3162.
In 1972, Lifetime Product’s founder, Barry Mower, set out to make a sturdier basketball pole for his backyard. He purchased a small length of heavy-duty used pipe, a piece of plywood, and a basketball rim, and built his own basketball standard. Seeing the potential in what he had constructed, he placed an ad in the local classifieds and made his first sale.
A basketball sleeve, like the wristband, is an accessory that some basketball players wear. Made out of nylon and spandex, it extends from the biceps to the wrist. It is sometimes called a shooter sleeve or an arm sleeve.