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energy
(Encyclopedia) CE5 Relations between potential energy (PE) and kinetic energy (KE) for a swinging pendulum energy, in physics, the ability or capacity to do work or to produce change. Forms of energy include hea...Baltimore
(Encyclopedia)Baltimore, city (2020 pop. 575,584), N central Md., surrounded by but politically independent of Baltimore co., on the Patapsco River estuary, an arm of...Reagan, Ronald Wilson
(Encyclopedia)Reagan, Ronald Wilson rāˈgən [key], 1911–2004, 40th president of the United States (1981–89), b. Tampico, Ill. In 1932, after graduation from Eureka College, he became a radio announcer and spo...influenza
(Encyclopedia)influenza or flu, acute, highly contagious disease caused by a RNA virus (family Orthomyxoviridae); formerly known as the grippe. There are three types of the virus, designated A, B, and C, but only t...Mississippi, state, United States
(Encyclopedia) CE5 Mississippi mĭsˌəsĭpˈē [key], one of the Deep South states of the United States. It is bordered by Alabama (E), the Gulf of Mexico (S), Arkansas and Louisiana, with most of that border fo...electricity
(Encyclopedia) CE5 Electrical and radio symbols electricity, class of phenomena arising from the existence of charge. The basic unit of charge is that on the proton or electron—the proton's charge is designate...liberalism
(Encyclopedia)liberalism, philosophy or movement that has as its aim the development of individual freedom. Because the concepts of liberty or freedom change in different historical periods the specific programs of...liberty, in political science
(Encyclopedia)liberty, term used to describe various types of individual freedom, such as religious liberty, political liberty, freedom of speech, right of self-defense, and others. It is also used as a general ter...marriage
(Encyclopedia)marriage, socially sanctioned union that reproduces the family. In all societies the choice of partners is generally guided by rules of exogamy (the obligation to marry outside a group); some societie...cell, in biology
(Encyclopedia) CE5 Animal cell cell, in biology, the unit of structure and function of which all plants and animals are composed. The cell is the smallest unit in the living organism that is capable of integrati...Browse by Subject
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