Glossary, ContinuedB (Continued)BACKUP—The registration of two sides of a printed sheet.BALANCE—A harmonious arrangement of the various components in apicture plane in a symmetrical (formal) or asymmetrical (informal) format.BALL-AND-SOCKET JOINT—A flexible joint that rotates in all directions.BALLOON—(1) A space containing the words spoken by cartoon characters;(2) A distortable shape used as a base to draw a cartoon head.BALLOON LETTERING—Informal, single-stroke lettering used in comicstrip balloons.BAR CHART—A graphic representation comparing numerical values bymeans of rectangles of equal width.BASE ART—Also called BASIC ART and BLACK ART. See BLACKART.BEADED SCREEN—A screen comprised of glass or plastic beads thatreflect light from a projected image.BEAM COMPASS—A compass capable of drawing circles and arcs thatexceed the limits of a standard compass.BEND ALLOWANCE—An additional amount of metal used in a bend inmetal fabrication.BENDAY—Mechanical shading applied to artwork to give a variety of tonesto line drawings. Benday is named for its inventor, Benjamin Day.BÉLZIER CURVES—A computer tool that draws precise curves with greataccuracy.BILL OF MATERIALS—A list of standard parts or raw materials needed tofabricate items.Continued on next pageAI-5
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