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image
(Encyclopedia) image, in optics, likeness or counterpart of an object produced when rays of light coming from that object are reflected from a mirror or are refracted by a lens. An image of an object…isoleucine
(Encyclopedia) CE5 isoleucineisoleucineīˌsəl&oomacr;ˈsēn [key], organic compound, one of the 20 amino acids commonly found in animal proteins. Only the l-stereoisomer appears in mammalian…style, in literature
(Encyclopedia) style, in literature, the mysterious yet recognizable result of a successful blending of form with content. Generally speaking, all the arts reflect one of two stylistic tendencies:…superfluidity
(Encyclopedia) superfluidity, tendency of liquid helium below a temperature of 2.19K to flow freely, even upward, with little apparent friction. Helium becomes a liquid when it is cooled to 4.2K.…supply and demand
(Encyclopedia) supply and demand, in classical economics, factors that are said to determine price, by correlating the amount of a given commodity producers hope to sell at a certain price (supply),…ultrasonics
(Encyclopedia) ultrasonics, study and application of the energy of sound waves vibrating at frequencies greater than 20,000 cycles per second, i.e., beyond the range of human hearing. The application…seas, freedom of the
(Encyclopedia) seas, freedom of the, in international law, the principle that outside its territorial waters (see waters, territorial) a state may not claim sovereignty over the seas, except with…phenylalanine
(Encyclopedia) CE5 phenylalaninephenylalaninefĕnˌəlălˈənēnˌ [key], organic compound, one of the 22 α-amino acids commonly found in animal proteins. Only the l-stereoisomer appears in mammalian…sharia
(Encyclopedia) sharia, the religious law of Islam. As Islam makes no distinction between religion and life, Islamic law covers not only ritual but many aspects of life. The actual codification of…spiritism
(Encyclopedia) spiritism or spiritualism, belief that the human personality continues to exist after death and can communicate with the living through the agency of a medium or psychic. The advocates…