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uranium

(Encyclopedia)uranium yo͞orāˈnēəm [key], radioactive metallic chemical element; symbol U; at. no. 92; mass number of most stable isotope 238; m.p. 1,132℃; b.p. 3,818℃; sp. gr. 19.1 at 25℃; valence +3, +4...

Nag Hammadi

(Encyclopedia)Nag Hammadi näg häˈmädi [key], a town in Egypt near the ancient town of Chenoboskion, where, in 1945, a large cache of gnostic texts in the Coptic language was discovered. The Nag Hammadi manuscri...

candelabrum

(Encyclopedia)candelabrum kănˌdəläˈbrəm [key], primarily a support for candles, designed in the form of a turned baluster or a tapered column, also a branched candlestick or a lampstand. Though most used and ...

helium

(Encyclopedia)helium hēˈlēəm [key], gaseous chemical element; symbol He; at. no. 2; at. wt. 4.0026; m.p. below −272℃ at 26 atmospheres pressure; b.p. −268.934℃ at 1 atmosphere pressure; density 0.1785 g...

Lockyer, Sir Joseph Norman

(Encyclopedia)Lockyer, Sir Joseph Norman lŏkˈyər [key], 1836–1920, English astronomer, educated on the Continent. One of the first to make a spectroscopic examination of the sun and stars, he devised (1868), i...

semiotics

(Encyclopedia)semiotics or semiology, discipline deriving from the American logician C. S. Peirce and the French linguist Ferdinand de Saussure. It has come to mean generally the study of any cultural product (e.g....

Fagan, Garth

(Encyclopedia)Fagan, Garth, 1940–, Jamaican-American dancer and choreographer. He studied with Ivy Baxter and left Jamaica to dance with her company. Settling (1960) in Detroit, he attended Wayne State Univ. (gra...

holmium

(Encyclopedia)holmium hōlˈmēəm [key] [Lat.,=Stockholm], metallic chemical element; symbol Ho; at. no. 67; at. wt. 164.93032; m.p. about 1,474℃; b.p. about 2,425℃; sp. gr. 8.78 at 25℃; valence +3. Holmium ...

Hügel, Friedrich, Baron von

(Encyclopedia)Hügel, Friedrich, Baron von frēˈdrĭkh bärōnˈ fən hüˈgəl [key], 1852–1925, British Roman Catholic religious writer, b. Florence; son of an Austrian diplomat. After his marriage (1873), Hü...

Baskin, Leonard

(Encyclopedia)Baskin, Leonard, 1922–2000, American sculptor, graphic artist, and teacher, b. New Brunswick, N.J. In sculptural and graphic works that are figurative in style, Baskin's images of a corrupt, bloated...