Rod or bar that resists twisting (see torque) and has a strong tendency to return to its original position when twisted. In an automobile, a torsion bar is a long spring-steel element with one end held rigidly to the frame and the other end twisted by a lever connected to the axle. It thus provides a spring action for the vehicle.
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Event in men's gymnastics competition in which a steel bar fixed about 8 ft (2.4 m) above the floor is used for swinging exercises. Competitors generally wear hand protectors and perform routines that last 15–30 seconds. Exercises include the giant swing and various vaults (such as the straddle vault). It has been an Olympic event since the first modern Olympic Games in 1896.
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Printed series of parallel bars of varying width used for entering data into a computer system, typically for identifying the object on which the code appears. The width and spacing of the bars represent binary information that can be read by an optical (laser) scanner that is part of a computer system. The coding is used in many different areas of manufacturing and marketing, including inventory control and tracking systems. The bar codes printed on supermarket and other retail merchandise are those of the Universal Product Code (UPC).
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Group of lawyers organized primarily to deal with issues affecting the legal profession. In general, they are concerned with furthering the interests of lawyers through advocating reforms in the legal system, sponsoring research projects, and regulating professional standards. Bar associations sometimes administer the examinations required for admission to practice law. The largest U.S. bar association is the American Bar Assn.
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Jewish ritual celebrating a boy's 13th birthday and his entry into the community of Judaism. It usually takes place during a Sabbath service, when the boy reads from the Torah and may give a discourse on the text. The service is often followed by a festive Kiddush and a family dinner on the same day or next day. Reform Judaism substituted confirmation of boys and girls for the Bar Mitzvah celebration after 1810, but many congregations restored the Bar Mitzvah in the 20th century. A separate ceremony for girls, Bat Mitzvah, has been instituted in Reform and Conservative Judaism.
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Voluntary association (founded 1878) of U.S. lawyers, judges, and other legal professionals. The largest bar association in the U.S., it seeks to improve the legal profession, ensure the availability of legal services to all citizens, and improve the administration of justice. It conducts educational and research projects, sponsors professional meetings, and publishes a monthly journal. At the beginning of the 21st century its membership exceeded 400,000.
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