direction cube
61geometry — /jee om i tree/, n. 1. the branch of mathematics that deals with the deduction of the properties, measurement, and relationships of points, lines, angles, and figures in space from their defining conditions by means of certain assumed properties… …
62Éolienne — Pour les articles homonymes, voir Éolienne (homonymie). Une éolienne est un dispositif qui transforme l énergie cinétique du vent en énergie mécanique puis, éventuellement, en énergie électrique. Les éoliennes produisant de l électricité sont… …
63The Legend of Zelda: Ocarina of Time — For the Nintendo 3DS version, see The Legend of Zelda: Ocarina of Time 3D. The Legend of Zelda: Ocarina of Time North American box art …
64ÉLASTICITÉ — La théorie de l’élasticité est la théorie des petites déformations continues et réversibles des milieux isotropes élastiques. Elle donne, en principe et moyennant certaines hypothèses, la solution théorique complète des problèmes posés en… …
65Retroreflector — Infobox Laboratory equipment name = Retroreflector caption = A gold corner cube retroreflector acronym = other names = uses = Distance measurement by optical delay line inventor = manufacturer = model = related = A retroreflector (sometimes… …
66Mechanical puzzle — Part of a series on Puzzles …
67Coxeter group — In mathematics, a Coxeter group, named after H.S.M. Coxeter, is an abstract group that admits a formal description in terms of mirror symmetries. Indeed, the finite Coxeter groups are precisely the finite Euclidean reflection groups; the symmetry …
68Classical central-force problem — In classical mechanics, the central force problem is to determine the motion of a particle under the influence of a single central force. A central force is a force that points from the particle directly towards (or directly away from) a fixed… …
69Reflection mapping — An example of reflection mapping. In computer graphics, environment mapping, or reflection mapping, is an efficient Image based lighting technique for approximating the appearance of a reflective surface by means of a precomputed texture image.… …
70Le Blanc-Mesnil — Pour les articles homonymes, voir Blancmesnil et Le Blanc. 48° 56′ 00″ N 2° 27′ 00″ E …
