trace+by+reflection
51Eigenvalues and eigenvectors — For more specific information regarding the eigenvalues and eigenvectors of matrices, see Eigendecomposition of a matrix. In this shear mapping the red arrow changes direction but the blue arrow does not. Therefore the blue arrow is an… …
52echo — I. noun (plural echoes; also echos) Etymology: Middle English ecco, from Middle French & Latin; Middle French echo, from Latin, from Greek ēchō; akin to Latin vagire to wail, Greek ēchē sound Date: 14th century 1. a. the repetition of a sound… …
53Glossaire De La Sismique — La sismique est une discipline très technique. Souvent, les personnes travaillant dans ce domaine utilisent un vocabulaire spécifique, provenant en grande partie de l anglais. En outre, les techniques les plus employées, dans le traitement du… …
54Glossaire de la sismique — La sismique est une discipline très technique. Souvent, les personnes travaillant dans ce domaine utilisent un vocabulaire spécifique, provenant en grande partie de l anglais. En outre, les techniques les plus employées, dans le traitement du… …
55global warming — an increase in the earth s average atmospheric temperature that causes corresponding changes in climate and that may result from the greenhouse effect. [1975 80] * * * Potential increase in global average surface temperatures resulting from… …
56ancient Greek civilization — ▪ historical region, Eurasia Introduction the period following Mycenaean civilization, which ended in about 1200 BC, to the death of Alexander the Great, in 323 BC. It was a period of political, philosophical, artistic, and scientific… …
57Psychology — • The science which treats of the soul and its operations Catholic Encyclopedia. Kevin Knight. 2006. Psychology Psychology † …
58Nebula — Nebulae redirects here. For the supercomputer in China, see Nebulae (computer). For other uses, see Nebula (disambiguation). The Pillars of Creation from the Eagle Nebula …
59Modulating retro-reflector — A modulating retro reflector (MRR) system combines an optical retro reflector and an optical modulator to allow optical communications[1] and sometimes other functions such as programmable signage.[2] Free space optical communication technology… …
60History of Physics — History of Physics † Catholic Encyclopedia ► History of Physics The subject will be treated under the following heads: I. A Glance at Ancient Physics; II. Science and Early Christian Scholars; III. A Glance at Arabian Physics; IV.… …
