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Pitching Machine
A pitching machine is a machine that automatically pitches a baseball to a batter at different speeds and styles. Most machines are hand-fed, but there are some that automatically feed. There are multiple types of pitching machines; softball, baseball, youth, adult, and a combination of both softball and baseball. History In 1897, mathematics instructor Charles Hinton designed a gunpowder-powered baseball pitching machine for the Princeton University baseball team's batting practice. According to one source it caused several injuries, and may have been in part responsible for Hinton's dismissal from Princeton that year. However, the machine was versatile: it was capable of throwing variable speeds with an adjustable breech size and firing curve balls by the use of two rubber-coated steel fingers at the muzzle of the pitcher. Hinton successfully introduced the machine to the University of Minnesota where he worked as an assistant professor until 1900. The arm-type pitching machine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pitching Machine
A pitching machine is a machine that automatically pitches a baseball to a batter at different speeds and styles. Most machines are hand-fed, but there are some that automatically feed. There are multiple types of pitching machines; softball, baseball, youth, adult, and a combination of both softball and baseball. History In 1897, mathematics instructor Charles Hinton designed a gunpowder-powered baseball pitching machine for the Princeton University baseball team's batting practice. According to one source it caused several injuries, and may have been in part responsible for Hinton's dismissal from Princeton that year. However, the machine was versatile: it was capable of throwing variable speeds with an adjustable breech size and firing curve balls by the use of two rubber-coated steel fingers at the muzzle of the pitcher. Hinton successfully introduced the machine to the University of Minnesota where he worked as an assistant professor until 1900. The arm-type pitching machine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pitch (baseball)
In baseball, the pitch is the act of throwing the baseball toward home plate to start a play. The term comes from the Knickerbocker Rules. Originally, the ball had to be thrown underhand, much like Horseshoes (game), "pitching in horseshoes". Overhand pitching was not allowed in baseball until 1884 in baseball, 1884. The biomechanics of pitching have been studied extensively. The phases of pitching include the windup, early cocking, late cocking, early acceleration, late acceleration, deceleration, and follow-through. Pitchers throw a variety of pitches, each of which has a slightly different velocity, trajectory, movement, hand position, wrist position and/or arm angle. These variations are introduced to confuse the batter and ultimately aid the defensive team in getting the batter or baserunners Out (baseball), out. To obtain variety, and therefore enhance defensive baseball strategy, the pitcher manipulates the grip on the baseball (ball), ball at the point of release. V ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baseball (object)
A baseball is a ball used in the sport of the same name. The ball consists of a rubber or cork center wrapped in yarn and covered with white natural horsehide or cowhide, or a synthetic composite leather. A regulation baseball is 9 to 9¼ inches (229 to 235mm) in circumference ie 2.86 to 2.94 inches (72.9 to 74.8 mm) in diameter, with a weight of 5to 5¼oz. (142 to 149g). A baseball is bound together by 108 hand-woven stitches through the cowhide leather. The leather cover is commonly formed from two saddle-shaped pieces stitched together, typically with red-dyed thread. That stitching plays a significant role in the trajectory of a thrown baseball due to the drag caused by the interaction between the stitching and the air. Controlling the orientation of the stitches and the speed of the ball's rotation allows a pitcher to affect the behavior of the pitched ball in specific ways. Commonly employed pitches include the curveball, the slider, the two-seam fastball, the four-se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Batting (baseball)
In baseball, batting is the act of facing the opposing pitcher and trying to produce offense for one's team. A batter or hitter is a person whose turn it is to face the pitcher. The three main goals of batters are to become a baserunner, to drive runners home or to advance runners along the bases for others to drive home, but the techniques and strategies they use to do so vary. Hitting uses a motion that is virtually unique to baseball and its fellow bat-and-ball sports, one that is rarely used in other sports. Hitting is unique because it involves rotating in the horizontal plane of movement, unlike most sports movements which occur in the vertical plane. Goals In general, batters try to get hits. However, their primary objective is to avoid making an out, and helping their team to score runs. There are several ways they can help their team score runs. They may draw a walk if they receive and do not swing the bat at four pitches located outside the strike zone. In cases ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Hinton
Charles Howard Hinton (1853 – 30 April 1907) was a British mathematician and writer of science fiction works titled ''Scientific Romances''. He was interested in higher dimensions, particularly the fourth dimension. He is known for coining the word "tesseract" and for his work on methods of visualising the geometry of higher dimensions. Life Hinton's father, James Hinton, was a surgeon and advocate of polygamy. Charles Hinton was born in the United Kingdom. His siblings included the costume designer Ada Nettleship (1856 – 1932). Hinton taught at Cheltenham College while he studied at Balliol College, Oxford, where he obtained his B.A. in 1877. From 1880 to 1886, he taught at Uppingham School in Rutland, where Howard Candler, a friend of Edwin Abbott Abbott's, also taught. Hinton also received his M.A. from Oxford in 1886. In 1880 Hinton married Mary Ellen, daughter of Mary Everest Boole and George Boole, the founder of mathematical logic. The couple had four children ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Princeton University
Princeton University is a private university, private research university in Princeton, New Jersey. Founded in 1746 in Elizabeth, New Jersey, Elizabeth as the College of New Jersey, Princeton is the List of Colonial Colleges, fourth-oldest institution of higher education in the United States and one of the nine colonial colleges chartered before the American Revolution. It is one of the highest-ranked universities in the world. The institution moved to Newark, New Jersey, Newark in 1747, and then to the current site nine years later. It officially became a university in 1896 and was subsequently renamed Princeton University. It is a member of the Ivy League. The university is governed by the Trustees of Princeton University and has an endowment of $37.7 billion, the largest List of colleges and universities in the United States by endowment, endowment per student in the United States. Princeton provides undergraduate education, undergraduate and graduate education, graduate in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harper's Weekly
''Harper's Weekly, A Journal of Civilization'' was an American political magazine based in New York City. Published by Harper & Brothers from 1857 until 1916, it featured foreign and domestic news, fiction, essays on many subjects, and humor, alongside illustrations. It carried extensive coverage of the American Civil War, including many illustrations of events from the war. During its most influential period, it was the forum of the political cartoonist Thomas Nast. History Inception Along with his brothers James, John, and Wesley, Fletcher Harper began the publishing company Harper & Brothers in 1825. Following the successful example of ''The Illustrated London News'', Harper started publishing '' Harper's Magazine'' in 1850. The monthly publication featured established authors such as Charles Dickens and William Makepeace Thackeray, and within several years, demand for the magazine was great enough to sustain a weekly edition.Palmquist & Kailborn 2002, p. 279. In 1857, his ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Minnesota
The University of Minnesota, formally the University of Minnesota, Twin Cities, (UMN Twin Cities, the U of M, or Minnesota) is a public university, public Land-grant university, land-grant research university in the Minneapolis–Saint Paul, Twin Cities of Minneapolis and Saint Paul, Minnesota, United States. The Twin Cities campus comprises locations in Minneapolis and Falcon Heights, Minnesota, Falcon Heights, a suburb of St. Paul, approximately apart. The Twin Cities campus is the oldest and largest in the University of Minnesota system and has the List of United States university campuses by enrollment, ninth-largest main campus student body in the United States, with 52,376 students at the start of the 2021–22 academic year. It is the Flagship#Colleges and universities in the United States, flagship institution of the University of Minnesota System, and is organized into 19 colleges, schools, and other major academic units. The Minnesota Territorial Legislature drafted a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Batting Cage
A batting cage (or tunnel) is an enclosed area for baseball or softball players to practice the skill of batting. The optimal material for batting cages is netting, and they are typically rectangular in shape. Chain-link fence is not required but can be useful to enclose the netting to prevent vandalism. However, this material is not suitable for the primary impact layer because it will warp the fencing and damage balls. The ideal netting for a batting cage is either diamond- or square-shaped. Both types of netting have their advantages and disadvantages. Usage A batter stands at one end of the cage, with a pitching machine (or, less often, a human pitcher) at the opposing end. The pitcher or pitching machine pitches baseballs to the batter, who hits them. It is recommended to use a protective pitcher's L-screen to prevent batted balls from striking the pitcher or machine. The cage is used to keep the loose baseballs within a certain range so that they're easy to pick up and a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bowling Machine
In cricket a bowling machine is a device which enables a batsman to practise (usually in the nets) and to hone specific skills through repetition of the ball being bowled at a certain length, line and speed. It can also be used when there is no-one available to bowl, or no one of the desired style or standard. There are a number of different types of bowling machine available to cricket coaches, each quite different in the ways they achieve the required delivery, though most allow the use of remote control, so that a coach can be closer to a batsman when the stroke is played. Mechanical bowling machines This type of machine is by far the most common. It is simple, strong and reliable, as well as being able to bowl a useful range of deliveries. How they work The main mechanism of the machine consists of two heavy wheels, between 30 and 50 cm in diameter, fitted with solid or pneumatic rubber tyres, each driven by its own electric motor. These are mounted in a frame suc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baseball Equipment
; Bat : A rounded, solid wooden or hollow aluminum bat. Wooden bats are traditionally made from ash wood, though maple and bamboo is also sometimes used. Aluminum bats are not permitted in professional leagues, but are frequently used in amateur leagues. Composite bats are also available, essentially wooden bats with a metal rod inside. Bamboo bats are also becoming popular. ; Ball : A cork sphere, tightly wound with layers of yarn or string and covered with a stitched leather coat. ; Base : One of four corners of the infield which must be touched by a runner in order to score a run; more specifically, they are canvas bags (at first, second, and third base) and a rubber plate (at home). ; Glove : Leather gloves worn by players in the field. Long fingers and a webbing between the thumb and first finger allows the fielder to catch the ball more easily. ; Catcher's mitt : Leather mitt worn by catchers. It is much wider than a normal fielder's glove and the four fingers are connect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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