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Monday, March 16, 2009

Pocket billiards

Time-lapse photo of a player going down to take a shot.

Pocket billiards, most commonly referred to as pool, is the general term for a family of games played on a specific class of billiards table, having 6 receptacles called pockets (or "holes") along the rails, in which balls are deposited as the main goal of play. Cue sports that are played on pocketless tables are generally referred to as carom billiards.

Equipment

Pool Balls

Pocket billiards uses different equipment from carom billiards. Other than the table having pockets, the balls for pocket billiards are generally smaller and range from 2.25 inches (57.15 mm) in diameter to 2.375 inches (60.33 mm) in diameter. (By comparison Carom billiard balls are generally 2.375 inches (60.33 mm), or 61.5 millimetres (2.42 in). While UMB, the International Olympic Committee-recognized world carom billiards authority, permits balls as small as 61.0 millimetres (2.40 in), no major manufacturer produces such balls any longer, and the de facto standard is 61.5 millimetres (2.42 in). Modern pocket billiard tables range in size from 3.5 feet (1.07 m) by 7 feet (2.13 m), to 4.5 feet (1.37 m) by 9 feet (2.74 m). Modern cues are generally 58.5 inches (148.6 cm) long for pocket billiards while cues prior to 1980 were designed for straight pool and had an average length of 57.5 inches (146.0 cm), while carom billiards cues are generally 56 inches (142.2 cm) long.

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