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uncertainty principle
(Encyclopedia) uncertainty principle, physical principle, enunciated by Werner Heisenberg in 1927, that places an absolute, theoretical limit on the combined accuracy of certain pairs of simultaneous…water, desalination of
(Encyclopedia) water, desalination of, process of removing soluble salts from water to render it suitable for drinking, irrigation, or industrial uses. The principal methods used for desalination…hydrogen bomb
(Encyclopedia) hydrogen bomb or H-bomb, weapon deriving a large portion of its energy from the nuclear fusion of hydrogen isotopes. In an atomic bomb, uranium or plutonium is split into lighter…catalyst
(Encyclopedia) catalyst, substance that can cause a change in the rate of a chemical reaction without itself being consumed in the reaction; the changing of the reaction rate by use of a catalyst is…respiration
(Encyclopedia) CE5 Respiratory system respiration, process by which an organism exchanges gases with its environment. The term now refers to the overall process by which oxygen is abstracted from…Ritz, Walter
(Encyclopedia) Ritz, Walter, 1878–1909, Swiss physicist. He taught at the universities of Zürich and Göttingen. Ritz's combination principle, confirmed by later research, stated that the frequencies…Port Radium
(Encyclopedia) Port Radium, mining village, N central Northwest Territories, Canada, on Great Bear Lake. The mines were discovered in 1930 and yielded deposits of pitchblende, from which much radium…nuclear physics
(Encyclopedia) nuclear physics, study of the components, structure, and behavior of the nucleus of the atom. It is especially concerned with the nature of matter and with nuclear energy.Shakti
(Encyclopedia) ShaktiShaktishŭkˈtē [key] [Skt.,=power], in Hinduism, name given to the female consorts of male deities. The Shakti personifies the dynamic, manifesting energy that creates the…electrode
(Encyclopedia) electrode, terminal through which electric current passes between metallic and nonmetallic parts of an electric circuit. In most familiar circuits current is carried by metallic…Trending
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