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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...

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...

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...

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 ...

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...

Carroll, Charles

(Encyclopedia)Carroll, Charles, 1737–1832, political leader in the American Revolution, signer of the Declaration of Independence, b. Annapolis, Md. After completing his education in France and England, he return...

Warner, Sylvia Townsend

(Encyclopedia)Warner, Sylvia Townsend, 1893–1978, English novelist and poet. Her first published work was poetry, The Espalier (1925), but she became more generally known with two novels of gentle fantasy, Lolly ...