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61Anthropology and Archaeology — ▪ 2009 Introduction Anthropology Among the key developments in 2008 in the field of physical anthropology was the discovery by a large interdisciplinary team of Spanish and American scientists in northern Spain of a partial mandible (lower… …
62physical science, principles of — Introduction the procedures and concepts employed by those who study the inorganic world. physical science, like all the natural sciences, is concerned with describing and relating to one another those experiences of the surrounding… …
63MESOPOTAMIA — The original article in the first edition of the Encyclopaedia Judaica traced Mesopotamian history to its earliest beginnings and provided a detailed survey of Mesopotamian literature and institutions. With the availability of such tools as J.… …
64Pythagorean triple — A Pythagorean triple consists of three positive integers a , b , and c , such that a 2 + b 2 = c 2. Such a triple is commonly written ( a , b , c ), and a well known example is (3, 4, 5). If ( a , b , c ) is a Pythagorean triple, then so is ( ka …
65Rotation matrix — In linear algebra, a rotation matrix is a matrix that is used to perform a rotation in Euclidean space. For example the matrix rotates points in the xy Cartesian plane counterclockwise through an angle θ about the origin of the Cartesian… …
66Geoffrey Pyke — Geoffrey Nathaniel Pyke (9 November 1893 ndash; 22 February 1948) was an English journalist; a spy and spy master; an educationalist and later an inventor whose clever, but unorthodox, ideas could be difficult to implement. In lifestyle and… …
67Dalek variants — …
68animal development — Introduction the processes that lead eventually to the formation of a new animal starting from cells derived from one or more parent individuals. Development thus occurs following the process by which a new generation of organisms is produced by …
69Mathematical proof — In mathematics, a proof is a convincing demonstration (within the accepted standards of the field) that some mathematical statement is necessarily true.[1][2] Proofs are obtained from deductive reasoning, rather than from inductive or empirical… …
70Howard Staunton — Infobox chess player playername = Howard Staunton caption= birthname = Howard Staunton country = ENG datebirth = 1810 placebirth = datedeath = death date and age|1874|6|22|1810|4|999 placedeath = title = rating = peakrating =chess notation Howard …
