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balance
(Encyclopedia) balance, instrument used in laboratories and pharmacies to measure the mass or weight of a body. A balance functions by measuring the force of gravity that the earth exerts on an…political science
(Encyclopedia) political science, the study of government and political processes, institutions, and behavior. Government and politics have been studied and commented on since the time of the ancient…numeration
(Encyclopedia) numeration, in mathematics, process of designating numbers according to any particular system; the number designations are in turn called numerals. In any place value system of…chain reaction
(Encyclopedia) CE5 Chain reaction: A neutron (n) strikes the uranium nucleus (U-235), causing it to split into fission products A and B and release two neutrons. These neutrons can in turn cause…coast protection
(Encyclopedia) coast protection, methods used to protect coastal lands from erosion. Beaches can exist only where a delicate dynamic equilibrium exists between the amount of sand supplied to the…amphibious warfare
(Encyclopedia) amphibious warfareamphibious warfareămfĭbˈēəs [key], employment of a combination of land and sea forces to take or defend a military objective. The general strategy is very ancient and…bicameral system
(Encyclopedia) bicameral systembicameral systembīkămˈərəl [key], governmental system dividing the legislative function between two chambers, an “upper,” such as the U.S. Senate and the British House…substance
(Encyclopedia) substance, in philosophy, term used to denote the changeless substratum presumed in some philosophies to be present in all being. Aristotle defined substance as that which possesses…dithyramb
(Encyclopedia) dithyrambdithyrambdĭthˈĭrăm [key], in ancient Greece, hymn to the god Dionysus, choral lyric with exchanges between the leader and the chorus. It arose, probably, in the extemporaneous…Hague Conferences
(Encyclopedia) Hague Conferences, term for the International Peace Conference of 1899 (First Hague Conference) and the Second International Peace Conference of 1907 (Second Hague Conference). Both…