Swing bowling

Swing bowling is a technique used for bowling in the sport of cricket. Practitioners are known as swing bowlers. Swing bowling is generally classed as a subtype of fast bowling.

Physics of swing bowling

The essence of swing bowling is to get the cricket ball to deviate sideways as it moves through the air towards or away from the batsman. In order to do this, the bowler makes use of five factors:

The asymmetry of the ball is encouraged by the constant polishing of one side of the ball by members of the fielding team, while allowing the opposite side to deteriorate through wear and tear. With time, this produces a marked difference in the aerodynamic properties of the two sides.

Both turbulent and laminar airflow contribute to swing. Air in laminar flow separates from the surface of the ball earlier than air in turbulent flow, so that the separation point moves toward the front of the ball on the laminar side. On the turbulent flow side it remains towards the back, inducing a greater lift force on the turbulent airflow side of the ball. The calculated net lift force is not enough to account for the amount of swing observed. Additional force is provided by the pressure-gradient force.

Cricket

Cricket is a bat-and-ball game played between two teams of 11 players each on a field at the centre of which is a rectangular 22-yard-long pitch. The game is played by 120 million players in many countries, making it the world's second most popular sport. Each team takes its turn to bat, attempting to score runs, while the other team fields. Each turn is known as an innings (used for both singular and plural).

The bowler delivers the ball to the batsman who attempts to hit the ball with his bat away from the fielders so he can run to the other end of the pitch and score a run. Each batsman continues batting until he is out. The batting team continues batting until ten batsmen are out, or a specified number of overs of six balls have been bowled, at which point the teams switch roles and the fielding team comes in to bat.

In professional cricket, the length of a game ranges from 20 overs (T20) per side to Test cricket played over five days. The Laws of Cricket are maintained by the International Cricket Council (ICC) and the Marylebone Cricket Club (MCC) with additional Standard Playing Conditions for Test matches and One Day Internationals.

Swing

Swing or swinging may refer to:

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This TV

This TV (also known as "This TV Network" or "this", and alternately stylized as "thisTV" with company name, ThisTv, LLC) is an American digital broadcast television network that is operated as a joint venture between the Tribune Broadcasting subsidiary of Tribune Media, and MGM Domestic Television Distribution LLC of the Metro-Goldwyn-Mayer group. This TV maintains a large programming emphasis on movies, but also airs other limited general entertainment content in the form of classic television series and children's programming.

The network is available in many media markets via broadcast television stations, primarily on their digital subchannels, and on select cable providers through carriage of a local affiliate (primarily on digital tiers). This TV broadcasts 24 hours a day in 480i standard definition. This TV's programming and business operations are headquartered at the Tribune Tower in Chicago; MGM handles advertising sales for the network through its offices in New York City.

James Anderson

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