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==Origin==
[http://nordan.daynal.org/wiki/index.php?title=English#ca._1100-1500_.09THE_MIDDLE_ENGLISH_PERIOD Middle English] spinnen, from [http://nordan.daynal.org/wiki/index.php?title=English#ca._600-1100.09THE_OLD_ENGLISH.2C_OR_ANGLO-SAXON_PERIOD Old English] ''spinnan''; akin to Old High German ''spinnan'' to spin and perhaps to Lithuanian ''spęsti'' to set (a [[trap]])
*[http://en.wikipedia.org/wiki/12th_century before 12th Century]
==Definitions==
*1: to draw out and twist fiber into yarn or thread
*2: to [[form]] a thread by extruding a viscous rapidly hardening [[fluid]] —used especially of a spider or [[insect]]
*3a : to revolve rapidly : gyrate
:b : to [[feel]] as if in a whirl : reel <my head is spinning>
*4: to move swiftly especially on or as if on wheels or in a vehicle
*5: to fish with spinning bait : troll
*6a of an airplane : to fall in a spin
:b : to plunge helplessly and out of [[control]]
*7: to manage [[perception]] (as in [[politics]])
==Description==
The main aim of '''spin''' bowling is to bowl the [http://en.wikipedia.org/wiki/Cricket_ball 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 [http://en.wikipedia.org/wiki/Batsman batsman] to hit the ball cleanly. The speed the ball travels is not critical, and is significantly slower than that for [http://en.wikipedia.org/wiki/Fast_bowling fast bowling]. A typical spin delivery has a speed in the range 70–90 km/h (45–55 mph).
Spin bowling is divided into four different categories, depending on the particular physical [[technique]] used. There is virtually no overlap between the two basic biomechanical techniques of [http://en.wikipedia.org/wiki/Wrist_spin wrist spin] and [http://en.wikipedia.org/wiki/Finger_spin finger spin].
*[http://en.wikipedia.org/wiki/Leg_spin Leg spin] - Right-handed with wrist spin technique. (e.g. Shane Warne)
*[http://en.wikipedia.org/wiki/Left-arm_orthodox_spin Left-arm orthodox spin] - Left-handed with finger spin technique. (e.g. Monty Panesar)
*[http://en.wikipedia.org/wiki/Left-arm_unorthodox_spin Left-arm unorthodox spin] - Left-handed with wrist spin technique. (e.g. Brad Hogg)
*[http://en.wikipedia.org/wiki/Off_spin Off spin] - Right-handed with finger spin technique. (e.g. Muttiah Muralidaran)
Depending on [[technique]], a spin bowler uses either predominant wrist or finger motion to impart spin to the ball around a [[horizontal]] [[axis]] that is at an oblique angle to the length of the pitch. This sort of spin means it is also possible for the [http://en.wikipedia.org/wiki/Magnus_effect Magnus effect] to cause the ball to deviate sideways through the air, before it bounces. Such deviation is called ''drift''. The combination of drift and spin can make the ball's [[trajectory]] [[complex]], with a [[change]] of [[direction]] at the bounce.
This variety of [[trajectories]] achievable by a spin bowler can bewilder inexperienced or poor batsmen.
Spin bowlers are generally given the task of bowling with an old, worn cricket ball. A new cricket ball better suits the techniques of fast bowling than spin bowling, while a worn one grips the pitch better and achieves greater spin. Spin bowlers are also more effective later in a game, as the pitch dries up and begins to crack and crumble. This again provides more purchase for the spinning ball and produces greater deviation.[http://en.wikipedia.org/wiki/Spin_bowling]
==See also==
*'''''[[Rotation]]'''''
[[Category: Physics]]
[[Category: General Reference]]
==Origin==
[http://nordan.daynal.org/wiki/index.php?title=English#ca._1100-1500_.09THE_MIDDLE_ENGLISH_PERIOD Middle English] spinnen, from [http://nordan.daynal.org/wiki/index.php?title=English#ca._600-1100.09THE_OLD_ENGLISH.2C_OR_ANGLO-SAXON_PERIOD Old English] ''spinnan''; akin to Old High German ''spinnan'' to spin and perhaps to Lithuanian ''spęsti'' to set (a [[trap]])
*[http://en.wikipedia.org/wiki/12th_century before 12th Century]
==Definitions==
*1: to draw out and twist fiber into yarn or thread
*2: to [[form]] a thread by extruding a viscous rapidly hardening [[fluid]] —used especially of a spider or [[insect]]
*3a : to revolve rapidly : gyrate
:b : to [[feel]] as if in a whirl : reel <my head is spinning>
*4: to move swiftly especially on or as if on wheels or in a vehicle
*5: to fish with spinning bait : troll
*6a of an airplane : to fall in a spin
:b : to plunge helplessly and out of [[control]]
*7: to manage [[perception]] (as in [[politics]])
==Description==
The main aim of '''spin''' bowling is to bowl the [http://en.wikipedia.org/wiki/Cricket_ball 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 [http://en.wikipedia.org/wiki/Batsman batsman] to hit the ball cleanly. The speed the ball travels is not critical, and is significantly slower than that for [http://en.wikipedia.org/wiki/Fast_bowling fast bowling]. A typical spin delivery has a speed in the range 70–90 km/h (45–55 mph).
Spin bowling is divided into four different categories, depending on the particular physical [[technique]] used. There is virtually no overlap between the two basic biomechanical techniques of [http://en.wikipedia.org/wiki/Wrist_spin wrist spin] and [http://en.wikipedia.org/wiki/Finger_spin finger spin].
*[http://en.wikipedia.org/wiki/Leg_spin Leg spin] - Right-handed with wrist spin technique. (e.g. Shane Warne)
*[http://en.wikipedia.org/wiki/Left-arm_orthodox_spin Left-arm orthodox spin] - Left-handed with finger spin technique. (e.g. Monty Panesar)
*[http://en.wikipedia.org/wiki/Left-arm_unorthodox_spin Left-arm unorthodox spin] - Left-handed with wrist spin technique. (e.g. Brad Hogg)
*[http://en.wikipedia.org/wiki/Off_spin Off spin] - Right-handed with finger spin technique. (e.g. Muttiah Muralidaran)
Depending on [[technique]], a spin bowler uses either predominant wrist or finger motion to impart spin to the ball around a [[horizontal]] [[axis]] that is at an oblique angle to the length of the pitch. This sort of spin means it is also possible for the [http://en.wikipedia.org/wiki/Magnus_effect Magnus effect] to cause the ball to deviate sideways through the air, before it bounces. Such deviation is called ''drift''. The combination of drift and spin can make the ball's [[trajectory]] [[complex]], with a [[change]] of [[direction]] at the bounce.
This variety of [[trajectories]] achievable by a spin bowler can bewilder inexperienced or poor batsmen.
Spin bowlers are generally given the task of bowling with an old, worn cricket ball. A new cricket ball better suits the techniques of fast bowling than spin bowling, while a worn one grips the pitch better and achieves greater spin. Spin bowlers are also more effective later in a game, as the pitch dries up and begins to crack and crumble. This again provides more purchase for the spinning ball and produces greater deviation.[http://en.wikipedia.org/wiki/Spin_bowling]
==See also==
*'''''[[Rotation]]'''''
[[Category: Physics]]
[[Category: General Reference]]
