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.BELZIERCURVES— A computer tool that draws precise curves with greataccuracy.BILL OF MATERIALS— A list of standard parts or raw materials needed tofabricate an item.Continued on next pageAI-5
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