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51Leaf — For other uses, see Leaf (disambiguation). The leaves of a Beech tree …
52France — /frans, frahns/; Fr. /frddahonns/, n. 1. Anatole /ann nann tawl /, (Jacques Anatole Thibault), 1844 1924, French novelist and essayist: Nobel prize 1921. 2. a republic in W Europe. 58,470,421; 212,736 sq. mi. (550,985 sq. km). Cap.: Paris. 3.… …
53Ctenophora — For the genus of crane flies, see Ctenophora (genus). Comb jellies Temporal range: Cambrian – Recent …
54Radius of curvature (applications) — The distance from the center of a sphere or ellipsoid to its surface is its radius. The equivalent surface radius that is described by radial distances at points along the body s surface is its radius of curvature (more formally, the radius of… …
55Science (Philosophies of) — Philosophies of science Mach, Duhem, Bachelard Babette E.Babich THE TRADITION OF CONTINENTAL PHILOSOPHY OF SCIENCE If the philosophy of science is not typically represented as a ‘continental’ discipline it is nevertheless historically rooted in… …
56Salute — This article is about the gesture. For other uses, see Salute (disambiguation). A salute is a gesture or other action used to display respect. Salutes are primarily associated with armed forces, but other organizations and civil people also use… …
57Wire — For other uses, see Wire (disambiguation). Wires overhead A wire is a single, usually cylindrical, flexible strand or rod of metal. Wires are used to bear mechanical loads and to carry electricity and telecommunications signals. Wire is commonly… …
58Orbital elements — are the parameters required to uniquely identify a specific orbit. In celestial mechanics these elements are generally considered in classical two body systems, where a Kepler orbit is used (derived from Newton s laws of motion and Newton s law… …
59Bark painting — is an Australian Aboriginal art form which is done on the interior strip of a tree bark. This is a continuing form of artistic expression in Arnhem Land and other regions in the Top End of Australia including parts of the Kimberley region of… …
60List of birds of Papua New Guinea — This is a list of the bird species recorded in Papua New Guinea. The avifauna of Papua New Guinea includes a total of 781 species, of which 76 are endemic, one has been introduced by humans, and 18 are rare or accidental. 28 species are globally… …
