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Nakamura, Shuji

(Encyclopedia) Nakamura, Shuji, 1954–, Japanese physicist and electronics engineer, grad. Univ. of Tokushima (D.Eng., 1994). Nakamura joined the Nichia Corporation in 1977, and it was there that he…

McKim, Charles Follen

(Encyclopedia) McKim, Charles Follen, 1847–1909, American architect, b. Chester co., Pa., studied (1867–70) at the École des Beaux-Arts. He was one of the founders of the firm of McKim, Mead, and…

Tulsa Race Massacre of 1921

(Encyclopedia) TulsThunberga race massacre, Greenwood, Okla., May 31 to June 1, 1921. On the evening of May 31, 1921, a white lynch mob gathered…

spiritual

(Encyclopedia) spiritual, a religious folk song of American origin, particularly associated with African-American Protestants of the southern United States. The African-American spiritual,…

Slinky History

The Question: How did the lady who thought up the Slinky get the company to pay her for her idea? The Answer: It was actually quite easy. The…

lead acetate

(Encyclopedia) lead acetate, chemical compound, a white crystalline substance with a sweetish taste. Like other lead compounds, it is very poisonous. Lead acetate is soluble in water and glycerin.…

bleaching powder

(Encyclopedia) bleaching powder, white or nearly white powder that is usually a mixture of calcium chloride hypochlorite, CaCl(OCl); calcium hypochlorite, Ca(OCl)2; and calcium chloride, CaCl2.…

grosbeak

(Encyclopedia) grosbeakgrosbeakgrōsˈbēk [key] [great beak], common name for various members of the family Fringillidae (finch family). Grosbeaks are characterized by their large conical bills. The…

ibis

(Encyclopedia) ibisibisīˈbĭs [key], common name for wading birds with long, slender, decurved bills, found in the warmer regions of both hemispheres. The body is usually about 2 ft (61 cm) long. Most…