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Hesburgh, Theodore Martin

(Encyclopedia)Hesburgh, Theodore Martin, 1917–2015, American educator and civil rights advocate, b. Syracuse, N.Y., grad. Pontifical Gregorian Univ. (1939), Catholic Univ. of America (Ph.D., 1945). A member of th...

Joseph, Father

(Encyclopedia)Joseph, Father (François Leclerc du Tremblay), 1577–1638, French Capuchin monk, a confidant and agent of Cardinal Richelieu, generally known as the Éminence Grise [gray eminence]. Combining the el...

Kikwete, Jakaya Mrisho

(Encyclopedia)Kikwete, Jakaya Mrisho jäkäˈyä kĭkwĕˈtā [key], 1950–, Tanzanian political leader, b. Msoga, Tanganyika, grad. Univ. of Dar es Salaam (1978). He joined the defense forces while in college, an...

Smalley, Richard Errett

(Encyclopedia)Smalley, Richard Errett, 1943–2005, American chemist, b. Akron, Ohio, Ph.D. Princeton, 1973. He was a professor at Rice Univ. in Houston, Tex., from 1976 until his death in 2005. Smalley shared the ...

Peña Nieto, Enrique

(Encyclopedia)Peña Nieto, Enrique, 1966–, Mexican politician, president of Mexico (2012–18). He earned a law degree from the Panamerican Univ., Mexico City, and an M.B.A. from Monterrey Technological Institute...

Perl, Martin Lewis

(Encyclopedia)Perl, Martin Lewis, 1927–2014, American physicist, b. Brooklyn, N.Y., Ph.D. Columbia, 1955. He was a professor at the Univ. of Michigan from 1955 to 1963, when he accepted a position at Stanford; he...

neptunium

(Encyclopedia)neptunium nĕpto͞oˈnēəm [key], radioactive chemical element; symbol Np; at. no. 93; mass number of most stable isotope 237; m.p. about 640℃; b.p. 3,902℃ (estimated); sp. gr. 20.25 at 20℃; va...

Musk, Elon

(Encyclopedia)Musk, Elon ēˈlŏn [key], 1971–, American business executive and entrepreneur, b. Pretoria...

McEwan, Ian

(Encyclopedia)McEwan, Ian (Ian Russell McEwan) məkyo͞oˈən [key], 1948–, English novelist, b. Aldershot, B.A. Univ. of Sussex, 1970, M.A. Univ. of East Anglia, 1971. His early short-story collections, First Lo...

geophysics

(Encyclopedia)geophysics, study of the structure, composition, and dynamic changes of the earth, its atmosphere, hydrosphere and magnetosphere, based on the principles of physics. The term was probably first used i...