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Curveball
In baseball and softball, the curveball is a type of pitch thrown with a characteristic grip and hand movement that imparts forward spin to the ball, causing it to dive as it approaches the plate. Varieties of curveball include the 12–6 curveball, power curveball, and the knuckle curve. Its close relatives are the slider and the slurve. The "curve" of the ball varies from pitcher to pitcher. The expression "to throw a curveball" essentially translates to introducing a significant deviation to a preceding concept. Grip and action The curveball is gripped much like a cup or drinking glass is held. The pitcher places the middle finger on and parallel to one of the long seams, and the thumb just behind the seam on the opposite side of the ball such that if looking from the top down, the hand should form a "C shape" with the horseshoe pointing in towards the palm following the contour of the thumb. The index finger is placed alongside the middle finger, and the other two ext ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
12–6 Curveball
The 12–6 curveball is one of the types of pitches thrown in baseball. It is categorized as a breaking ball because of its downward break. The 12–6 curveball, unlike the normal curveball (also referred to as the "11 to 5 curve" or a "2 to 8 curve" for its motion), breaks in a downward motion in a straight line. This explains the name "12–6", because the break of the pitch refers to the ball breaking from the number 12 to the number 6 on a clock. While the 11–5 and 2–8 variations are very effective pitches, they are less effective than a true 12–6, because the ball will break into the heart of the bat more readily. The pitch is used throughout Major League Baseball. It has several nicknames, including the "yellow hammer". Movement The 12 to 6 curveball is the toughest type of curveball to hit, because it moves vertically, and has no horizontal break. The difference of the speed from a fastball and the break make the pitch difficult to hit if a pitcher uses it c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Knuckle Curve
In Major League history, the term knuckle curve or knuckle curveball has been used to describe three entirely different pitches. All are unrelated to the similar sounding knuckleball. The first, more modern and commonly used pitch called the knuckle curve is really a standard curveball, thrown with one or more of the index or middle fingers bent. According to practitioners, this gives them a better grip on the ball and allows for tighter spin and greater movement. In all other respects, this knuckle curve is identical to the standard curveball. This version of the knuckle curve is currently used by Major League pitchers Phil Hughes and Brad Peacock. Mike Mussina was well known for his incorporation of the pitch into his repertoire. Justin Verlander formerly threw a knuckle curve but was forced to abandon the pitch due to problems with blisters. This knuckle curve is usually called the spike curve by MLB players and coaches because the pitch is nothing like a knuckleball. The sec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slider (baseball)
In baseball, a slider is a breaking ball pitch that tails laterally and down through the batter's hitting zone. It is thrown at a speed that is lower than a fastball, but higher than the pitcher's curveball. The break on the pitch is shorter than that of the curveball, and the release technique is 'between' those of a curveball and a fastball. The slider is similar to the cutter, a fastball pitch, but is more of a breaking ball than the cutter. The slider is also known as a yakker or a snapper. Slider continuum Depending on velocity, a pitch can fall anywhere on the continuum from "fastball" to "slider": * fastball » cut fastball » hard slider » slider » slurve ** cut fastball: slower than fastball ** hard slider: slower than fastball ** slider: slower than fastball The difference between a slider and curveball is that the curveball delivery includes a downward yank on the ball as it is released in addition to the lateral spin applied by the slider grip. The slid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnus Effect
The Magnus effect is an observable phenomenon commonly associated with a spinning object moving through a fluid. The path of the spinning object is deflected in a manner not present when the object is not spinning. The deflection can be explained by the difference in pressure of the fluid on opposite sides of the spinning object. The Magnus effect is dependent on the speed of rotation. The most readily observable case of the Magnus effect is when a spinning sphere (or cylinder) curves away from the arc it would follow if it were not spinning. It is often used by association football and volleyball players, baseball pitchers, and cricket bowlers. Consequently, the phenomenon is important in the study of the physics of many ball sports. It is also an important factor in the study of the effects of spinning on guided missiles—and has some engineering uses, for instance in the design of rotor ships and Flettner aeroplanes. Topspin in ball games is defined as spin about ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Softball
Softball is a game similar to baseball played with a larger ball on a smaller field. Softball is played competitively at club levels, the college level, and the professional level. The game was first created in 1887 in Chicago by George Hancock. There are two rule sets for softball generally: ''slow pitch softball'' and '' fastpitch''. Slow pitch softball is commonly played recreationally, while women's fastpitch softball is a Summer Olympic sport and is played professionally. Depending on the variety being played and the age and gender of the players, the particulars of field and equipment vary. While distances between bases of 60 feet are standard across varieties, the pitcher's plate ranges from 35 to 43 feet away from home plate, and the home run fence can be 220 to 300 feet away from home plate. The ball itself is typically 11 or 12 inches (28 or 30 cm) in circumference, also depending on specifics of the competition. Softball rules vary somewhat from those of baseb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Knuckleball
A knuckleball or knuckler is a baseball pitch thrown to minimize the spin of the ball in flight, causing an erratic, unpredictable motion. The air flow over a seam of the ball causes the ball to change from laminar to turbulent flow. This change adds a deflecting force to the baseball, making it difficult for batters to hit but also difficult for pitchers to control and catchers to catch; umpires are challenged as well, as the ball's irregular motion through the air makes it harder to call balls and strikes.Hoffman, Benjamin"Not So Easy on the Eyes"''New York Times'' (June 23, 2012) A pitcher who throws knuckleballs is known as a knuckleballer. Origins The origins of the knuckleball are unclear. Toad Ramsey of the Louisville Colonels in the old American Association—his pitch likely resembled the knuckle curve—and Eddie Cicotte of the Chicago White Sox, who in 1908 was nicknamed "Knuckles", are two possible creators of the pitch. Other accounts attribute the pitch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baseball
Baseball is a bat-and-ball sport played between two teams of nine players each, taking turns batting and fielding. The game occurs over the course of several plays, with each play generally beginning when a player on the fielding team, called the pitcher, throws a ball that a player on the batting team, called the batter, tries to hit with a bat. The objective of the offensive team (batting team) is to hit the ball into the field of play, away from the other team's players, allowing its players to run the bases, having them advance counter-clockwise around four bases to score what are called " runs". The objective of the defensive team (referred to as the fielding team) is to prevent batters from becoming runners, and to prevent runners' advance around the bases. A run is scored when a runner legally advances around the bases in order and touches home plate (the place where the player started as a batter). The principal objective of the batting team is to have ... [...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 "pitching in horseshoes". Overhand pitching was not allowed in baseball until 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. To obtain variety, and therefore enhance defensive baseball strategy, the pitcher manipulates the grip on the ball at the point of release. Variations in the grip cause the seams to catch the air differentl ... [...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 fou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slurve
The slurve is a baseball pitch in which the pitcher throws a curve ball as if it were a slider."The Mechanics Of A Breaking Pitch" '''', April 1997. Accessed July 6, 2007. The pitch is gripped like a curve ball, but thrown with a slider velocity. The term is a of slider and curve. History of the |
Tommy John Surgery
Ulnar collateral ligament reconstruction, colloquially known as Tommy John surgery (TJS), is a surgical graft procedure where the ulnar collateral ligament in the medial elbow is replaced with either a tendon from elsewhere in the patient's body, or with one from a deceased donor. The procedure is common among collegiate and professional athletes in several sports, particularly in baseball. The procedure was devised in 1974 by orthopedic surgeon Frank Jobe, a Los Angeles Dodgers team physician who served as a special advisor to the team until his death in 2014. It is named after the first baseball player to undergo the surgery, major league pitcher Tommy John, whose record of 288 career victories ranks seventh among left-handed pitchers. The initial operation, John's successful post-surgery career, and the relationship between the two men was the subject of a 2013 ESPN '' 30 for 30'' documentary. Uses The ulnar collateral ligament (UCL) can become stretched, frayed or t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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