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Homestead

(Encyclopedia) Homestead. 1 City (2020 pop. 80,737), Dade co., SE Fla.; inc. 1913. A large Miami suburb with a growing Hispanic population, Homestead…

hydrogen fluoride

(Encyclopedia) hydrogen fluoride, chemical compound, HF, a colorless, fuming liquid or colorless gas that boils at 19.54℃. It is miscible with water and is soluble in benzene, toluene, and…

Meitner, Lise

(Encyclopedia) Meitner, LiseMeitner, Liselēˈzə mītˈnər [key], 1878–1968, Austrian-Swedish physicist and mathematician. She was professor at the Univ. of Berlin (1926–33). A refugee from Germany after…

Alexievich, Svetlana Alexandrovna

(Encyclopedia) Alexievich, Svetlana Alexandrovna, 1948–, Belarusian journalist and nonfiction writer, grad. Univ. of Minsk (1972). She was a working journalist before she began writing books in the…

dysprosium

(Encyclopedia) dysprosiumdysprosiumdĭsprōˈzēəm [key] [Gr.,=hard to get at], metallic chemical element; symbol Dy; at. no. 66; at. wt. 162.500; m.p. 1,412℃; b.p. 2,562℃; sp. gr. 8.54 at 25℃; valence+3…

e, in mathematics

(Encyclopedia) e, in mathematics, irrational number occurring widely in mathematics and science, approximately equal to the value 2.71828; it is the base of natural, or Naperian, logarithms. The…

Laird, Melvin Robert

(Encyclopedia) Laird, Melvin Robert, 1922–2016, American politician, U.S. secretary of defense (1969–73), b. Omaha, Nebr. After serving (1942–46) in the navy during World War II, he entered politics…

europium

(Encyclopedia) europiumeuropiumy&oobreve;rōˈpēəm [key] [from Europe], metallic chemical element; symbol Eu; at. no. 63; at. wt. 151.964; m.p. about 820℃; b.p. about 1,600℃; sp. gr. 5.25 at 25℃;…

Alvarez, Luis Walter

(Encyclopedia) Alvarez, Luis Walter, 1911–88, American physicist, b. San Francisco, grad. Univ. of Chicago, 1932, Ph.D. 1936. He was awarded the 1968 Nobel Prize in Physics for his discovery of a…

Morgenthau, Hans Joachim

(Encyclopedia) Morgenthau, Hans Joachim, 1904–80, American political scientist and foreign policy analyst, b. Coburg, Germany. After studying at the universities of Frankfort and Munich, he attended…