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Pretorius, Andries Wilhelmus Jacobus
(Encyclopedia)Pretorius, Andries Wilhelmus Jacobus prĭtôrˈēəs, Du. änˈdrēs vĭlhĕlˈməs yäkōˈbəs prātôrˈēəs [key], 1799–1853, Boer (Afrikaner) leader. He was elected (1838) commandant general o...Price, Leontyne
(Encyclopedia)Price, Leontyne lāˈəntēn [key], 1927–, American soprano, b. Laurel, Miss., as Mary Violet Leontine Price. She studied voice at Juilliard with Florence Page Kimball. Subsequently she appeared as ...Area 51
(Encyclopedia)Area 51, name for a U.S. military site, S Nev., c.80 mi (130 km) NNW of Las Vegas. Shrouded in secrecy since the mid-20th cent., it is located within the U.S. Air Force's enormous Nevada Test and Trai...Downs, North, and South Downs
(Encyclopedia)Downs, North, and South Downs, parallel ranges of chalk hills, SE England. They rise to 965 ft (294 m) at Leith Hill, Surrey. The North Downs range, extending c.100 mi (160 km) from near Farnham, Surr...ergonomics
(Encyclopedia)ergonomics, the engineering science concerned with the physical and psychological relationship between machines and the people who use them. The ergonomicist takes an empirical approach to the study o...graphene
(Encyclopedia)graphene, virtually transparent, highly conductive carbon material in which the atoms are organized into a honeycomblike arrangement and form a thin sheet that is one atom thick. Andre Geim and Konsta...Isauria
(Encyclopedia)Isauria īsôrˈēə [key], ancient district of S Asia Minor, on the borders of Pisidia and Cilicia, N of the Taurus range, in present S central Turkey. It was a wild region inhabited by marauding ban...inductor
(Encyclopedia)inductor, electric device consisting of one or more turns of wire and typically having two terminals. An inductor is usually connected into a circuit in order to raise the inductance to a desired valu...Integrated Pest Management
(Encyclopedia)Integrated Pest Management (IPM), planned program that coordinates economically and environmentally acceptable methods of pest control with the judicious and minimal use of toxic pesticides. IPM progr...New Age
(Encyclopedia)New Age, a term popularized in the 1980s to describe a wide-ranging set of beliefs and practices that are an outgrowth of the counterculture of the 1960s and 70s in the United States. Adherents of the...Browse by Subject
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