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DANGER: RADIATIONTYPES OF RADIOACTIVITYRADIOTHERAPYFIND OUT MOREThe atoms of some chemical elements are unstable. They try to rearrange themselves to make more stable atoms. In the process, they…
IndiaMovies and FilmAsian Film HistoryTwo Chinas, Two CinemasHong Kong: Cantonese, Kung-Fu, and a New WaveBenching the Benshi: Japan's Illustrious CenturyThe Master: The Art of Akira KurosawaIndia…
Speed is the measure of motion. You can find it by dividing the distance covered by the time it takes to travel that distance.Speed of Light If a star is 10 light-years away, it is about 60…
(Encyclopedia) Zworykin, Vladimir KosmaZworykin, Vladimir Kosmazwôˈrĭkĭn [key], 1889–1982, American physicist, b. Russia, educated in Russia, at the Collège de France, and at the Univ. of Pittsburgh…
(Encyclopedia) Avogadro's numberAvogadro's numberävōgäˈdrō [key] [for Amedeo Avogadro], number of particles contained in one mole of any substance; it is equal to 602,252,000,000,000,000,000,000, or…
(Encyclopedia) Kajita, Takaaki 1959–, Japanese physicist, Ph.D. Univ. of Tokyo, 1986. In 1988 he joined the faculty at the Univ. of Tokyo, where he is now professor and director of the Institute for…
(Encyclopedia) spinal puncture, surgical penetration of the spinal canal by a hollow needle introduced between two of the lumbar vertebrae. The arrangement permits injection of antibiotics or…
(Encyclopedia) Candela, Felix (Félix Candela Outeriño)Candela, Felixfāˈlēks kändāˈlä [key], 1910–97, Mexican-American architect, b. Madrid. Candela studied in Madrid but was forced to flee Spain…
