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ballistics
(Encyclopedia) ballisticsballisticsbəlĭsˈtĭks [key], science of projectiles. Interior ballistics deals with the propulsion and the motion of a projectile within a gun or firing device. Its problems…rationalism
(Encyclopedia) rationalism [Lat.,=belonging to reason], in philosophy, a theory that holds that reason alone, unaided by experience, can arrive at basic truth regarding the world. Associated with…Ortega y Gasset, José
(Encyclopedia) Ortega y Gasset, JoséOrtega y Gasset, Joséhōsāˈ ôrtāˈgä ē gäsĕtˈ [key], 1883–1955, Spanish essayist and philosopher. He studied in Germany and was influenced by neo-Kantian thought. He…August Coup
(Encyclopedia) August Coup, attempted coup (Aug. 18–22, 1991) against Soviet President Mikhail Gorbachev. On the eve of the signing ceremony for a new union treaty for the Union of Soviet Socialist…oath
(Encyclopedia) oath, vocal affirmation of the truth of one's statements, generally made by appealing to a deity. From the earliest days of human history, calling upon the gods of a community to…Riefenstahl, Leni
(Encyclopedia) Riefenstahl, Leni (Berta Helene Amalie Riefenstahl)Riefenstahl, Lenilāˈnē rēˈfənshtälˌ, bĕrˈtə hālāˈnə ämälˈyə [key], 1902–2003, German filmmaker, b. Berlin. First a dancer, then an…synchrotron radiation
(Encyclopedia) synchrotron radiation, in physics, electromagnetic radiation emitted by high-speed electrons spiraling along the lines of force of a magnetic field (see magnetism). Depending on the…Hertzsprung-Russell diagram
(Encyclopedia) CE5 The Hertzsprung-Russell diagram shows the relation between the luminosity and surface temperature (which is related to spectral class, or color) of the stars in the Milky Way.…food preservation
(Encyclopedia) food preservation, methods of preparing food so that it can be stored for future use. Because most foods remain edible for only a brief period of time, people since the earliest ages…molecular weight
(Encyclopedia) molecular weight, weight of a molecule of a substance expressed in atomic mass units (amu). The molecular weight may be calculated from the molecular formula of the substance; it is…Trending
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