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Flight (cricket)
In cricket, the flight of the ball is its trajectory through the air between being released by the bowler and bouncing on the pitch. The flight of a delivery may be varied by changing the pace of the ball or through use of the Magnus force. Flight is a key weapon of spin bowlers. A common objective of spin bowling is to beat the batsman "in the flight". This implies that the bowler has deliberately varied the trajectory of the ball in order to deceive the batsman as to the exact location it will land. This may result in the batsman missing or mis-hitting the ball and thus being dismissed. If the bowler bowls the ball slightly slower or with topspin, then the ball will land further away from the batsman that he would otherwise anticipate, whereas if the bowler bowls the ball slightly quicker or with backspin In sports, backspin or underspin refers to the reverse rotation of a ball, in relation to the ball's trajectory, that is imparted on the ball by a slice or chop shot. Ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Piyush Chawla 2 2019
Piyush is a Hindu boy's name that means "milk" or "nectar." It is a Sanskrit word that is often associated with purity, sweetness, and immortality. Notable people with the name include: * Piyush Chawla (born 1988), Indian cricketer *Piyush Goyal (born 1964), Indian politician * Piyush "Bobby" Jindal (born 1971), American politician *Piyush Jha Piyush Jha is a film director, screenwriter, author and series creator from India. Early life Piyush Jha was born in Jhansi, Uttar Pradesh. He did all his schooling in Mumbai, graduating with a bachelor's degree in Psychology at the University ..., Indian author, film director and screenwriter * Piyush Mishra (born 1963), Indian film and theatre actor, music director, lyricist, singer, and scriptwriter * Piyush Ranade (born 1983), Indian television and film actor * Piyush Trivedi (born 1958), Indian academician and educationist {{given name ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cricket
Cricket is a Bat-and-ball games, bat-and-ball game played between two Sports team, teams of eleven players on a cricket field, field, at the centre of which is a cricket pitch, pitch with a wicket at each end, each comprising two Bail (cricket), bails (small sticks) balanced on three stump (cricket), stumps. Two players from the Batting (cricket), batting team, the striker and nonstriker, stand in front of either wicket holding Cricket bat, bats, while one player from the Fielding (cricket), fielding team, the bowler, Bowling (cricket), bowls the Cricket ball, ball toward the striker's wicket from the opposite end of the pitch. The striker's goal is to hit the bowled ball with the bat and then switch places with the nonstriker, with the batting team scoring one Run (cricket), run for each of these swaps. Runs are also scored when the ball reaches the Boundary (cricket), boundary of the field or when the ball is bowled Illegal delivery (cricket), illegally. The fielding tea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnus Force
The Magnus effect is a phenomenon that occurs when a spinning object is moving through a fluid. A lift force acts on the spinning object and its path may be deflected in a manner not present when it is not spinning. The strength and direction of the Magnus force is dependent on the speed and direction of the rotation of the object. The Magnus effect is named after Heinrich Gustav Magnus, the German physicist who investigated it. The force on a rotating cylinder is an example of Kutta–Joukowski lift, named after Martin Kutta and Nikolay Zhukovsky (or Joukowski), mathematicians who contributed to the knowledge of how lift is generated in a fluid flow. Description 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 football (soccer) and volleyball players, baseball pitchers, and cricket bowlers. Consequently, the phenomenon is important in the st ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spin Bowler
Spin bowling is a bowling technique in cricket, in which the ball is delivered relatively slowly but with rapid rotation, giving it the potential to deviate sharply after bouncing. A bowler who uses this technique is called a spinner, a spin bowler, or a slow bowler. It is one of the two main approaches to bowling, the other being fast bowling. A spinner may bowl with their right-arm or left-arm, and with a finger spin or wrist spin action. Therefore, there are four types of spin bowling: off spin, leg spin, left-arm orthodox spin and left-arm unorthodox spin. The bowlers with the highest, second-highest and fourth-highest number of wickets in the history of Test cricket, Muttiah Muralitharan, Shane Warne and Anil Kumble, respectively, were spinners. Purpose The main aim of spin bowling is to bowl the cricket ball with rapid rotation so that when it bounces on the pitch it will deviate from its normal straight path, thus making it difficult for the batsman to hit the bal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Topspinner
A topspinner is a type of delivery bowled by a cricketer bowling either wrist spin or finger spin. In either case, the bowler imparts the ball with top spin by twisting it with their fingers prior to delivery. In both cases, the topspinner is the halfway house between the stock delivery and the ''wrong'un'' - in the wrist spinner's case his googly, and in the finger spinner's case his doosra. Mechanics A topspinner is released over the top of the fingers in such a way that it spins forward in the air towards the batsman in flight. The forward spinning motion impedes air travelling over the ball, but assists air travelling underneath. The difference in air pressure above and underneath the ball (described as the Magnus effect) acts as a downward force, meaning that the ball falls earlier and faster than normal. In cricketing terms, this means that the ball drops shorter, falls faster and bounces higher than might otherwise be anticipated by the batsman. These properties are s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Backspin
In sports, backspin or underspin refers to the reverse rotation of a ball, in relation to the ball's trajectory, that is imparted on the ball by a slice or chop shot. Backspin generates an upward force that lifts the ball (see Magnus effect). While a normal hit bounces well forward as well as up, backspin shots bounce higher and less forward. Backspin is the opposite of topspin. The technique was invented in 1986 by a Robert Esperat during the Calgary Olympics. In racket sports, the higher bounce imparted by backspin may make a receiver who has prepared for a different shot miss or mis-hit the ball when swinging. A backspin shot is also useful for defensive shots because a backspin shot takes longer to travel to the opponent, giving the defender more time to get back into position. Also, because backspin shots tend to bounce less far forward once they reach the opposite court, they may be more difficult to attack. This is especially important in table tennis because one must wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boundary (cricket)
In cricket, the boundary is the perimeter of a playing field. It is also the term given to a scoring shot where the ball is hit to, or beyond, that perimeter, which generally earns four or six runs for the batting team. Briefly, if the ball is struck by the batter and rolls or bounces over the boundary (or just touches it) it is known as a "four", and scores four runs, whereas if it flies over (or touches) the boundary, without touching the ground before that, it is called a "six", and scores six runs. There are rules covering every possible situation, including the fairly common one when a fielder is in the air beyond the boundary when he or she catches or strikes the ball with his or her hand or another part of the body. Edge of the field The boundary is the edge of the playing field, or the physical object (often a rope) marking the edge of the field. In low-level matches, a series of plastic cones or flags are sometimes used. Since the early 2000s, the boundaries at prof ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bouncing Ball
The physics of a bouncing ball concerns the physical behaviour of bouncing balls, particularly its motion before, during, and after impact against the surface of another body. Several aspects of a bouncing ball's behaviour serve as an introduction to mechanics in high school or undergraduate level physics courses. However, the exact modelling of the behaviour is complex and of interest in sports engineering. The motion of a ball is generally described by projectile motion (which can be affected by gravity, drag, the Magnus effect, and buoyancy), while its impact is usually characterized through the coefficient of restitution (which can be affected by the nature of the ball, the nature of the impacting surface, the impact velocity, rotation, and local conditions such as temperature and pressure). To ensure fair play, many sports governing bodies set limits on the bounciness of their ball and forbid tampering with the ball's aerodynamic properties. The bounciness of balls h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
