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81Floppy disk — Floppy redirects here. For other uses, see Floppy (disambiguation). 8 inch, 5 1⁄4 inch, and 3 1⁄2 inch floppy disks …
82architecture — /ahr ki tek cheuhr/, n. 1. the profession of designing buildings, open areas, communities, and other artificial constructions and environments, usually with some regard to aesthetic effect. Architecture often includes design or selection of… …
83sigillography — Introduction the study of seals (seal). A sealing is the impression made by the impact of a hard engraved surface on a softer material, such as clay or wax, once used to authenticate documents in the manner of a signature today; the word… …
84encyclopaedia — Reference work that contains information on all branches of knowledge or that treats a particular branch of knowledge comprehensively. It is self contained and explains subjects in greater detail than a dictionary. It differs from an almanac in… …
85Mathematics 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… …
86John D. Hamaker — (1914–1994), was an American mechanical engineer, ecologist, agronomist and science writer in the fields of soil remineralization, rock dusting, mineral cycles, climate cycles and glaciology. Contents 1 Biography 2 Discoveries inventions 3… …
87German orthography reform of 1996 — The German orthography reform of 1996 (Rechtschreibreform) was an attempt to simplify the spelling of the German language and thus to make it easier to learn, without substantially changing the rules familiar to all living users of the language.… …
88BIBLE — THE CANON, TEXT, AND EDITIONS canon general titles the canon the significance of the canon the process of canonization contents and titles of the books the tripartite canon …
89Diocletian — 51st Emperor of the Roman Empire Laureate bust of Diocletian. Reign 20 November 284 – 1 April 286 (alone) 1 April 286 – …
90Radiocarbon dating — (sometimes simply known as carbon dating) is a radiometric dating method that uses the naturally occurring radioisotope carbon 14 (14C) to estimate the age of carbon bearing materials up to about 58,000 to 62,000 years.[1] Raw, i.e. uncalibrated …
