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21Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity. Computer scientist Manindra Agrawal of the… …
22photography, technology of — Introduction equipment, techniques, and processes used in the production of photographs. The most widely used photographic process is the black and white negative–positive system (Figure 1 >). In the camera the lens projects an image of… …
23Gregory R. Ball — Infobox Politician name = Greg Ball |200px imagesize = 200px caption = birth date = September 16, 1977 birth place = Pawling, New York residence = Carmel, New York death date = death place = office = Assemblyman, 99th District salary = term start …
24Der Ring des Nibelungen: Composition of the music — The composition of the operatic tetralogy The Ring of the Nibelung occupied Richard Wagner for more than a quarter of a century. Conceived around 1848, the work was not finished until 1874, fewer than two years before the entire cycle was given… …
25First Folio —   …
26Digital rights management — (DRM) is a term for access control technologies that are used by hardware manufacturers, publishers, copyright holders and individuals to limit the use of digital content and devices. The term is used to describe any technology that inhibits uses …
27Shakespeare, William — (baptized April 26, 1564, Stratford upon Avon, Warwickshire, Eng. died April 23, 1616, Stratford upon Avon) British poet and playwright, often considered the greatest writer in world literature. He spent his early life in Stratford upon Avon,… …
28publishing, history of — Introduction an account of the selection, preparation, and marketing of printed matter from its origins in ancient times to the present. The activity has grown from small beginnings into a vast and complex industry responsible for the… …
29Kilogram — Kg redirects here. For other uses, see Kg (disambiguation). Kilogram A computer generated image of the international prototype kilogram (IPK). The IPK is the kilogram. The IPK, which is roughly the size of a golf ball, sits here alongside a ruler …
30Marketing research — Marketing Key concepts Product marketing · Pricing …
