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One beam covers the good (short) side of the service line and others cover the fault (long) side. If a served ball hits the first beam, the other beams are turned off, while a long serve will break one of the other beams. A long serve is indicated by an audible signal.
The Electroline; the first computerized, electronic line judge device, introduced in 1974. An electronic line judge is a device used in tennis to automatically detect where a ball has landed on the court. Attempts to revolutionize tennis officiating and the judging of calls in the sport began in the early 1970s and has resulted in the design ...
Ball machine: Machine that shoots tennis balls onto the court at a similar speed and trajectory as a human player, allowing an individual to practice their strokes without the need for a partner. Banana shot or banana forehand : Forehand hit down the line with sufficient spin that it curves in the air outside over the tramline and then back ...
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A former TD Bank employee based in Florida was arrested and charged with facilitating money laundering to Colombia, New Jersey's attorney general said on Wednesday, in the first such arrest since ...
The Kansas City Royals acquired second baseman Jonathan India from the Cincinnati Reds on Friday, adding a dependable leadoff hitter and middle infielder to play alongside star shortstop Bobby ...
Basic line marking machines for turf were available by the late 1800s. [1]: 40 They were originally developed for use on lawn tennis courts.[1]: 40 One of the first such machines, a wheel-to-wheel paint transfer device, was developed by F.H. Ayres and "would be instantly recognizable by users of many of today's machines, which work on the same principle".