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acetaldehyde

(Encyclopedia)acetaldehyde ĕthˈənălˌ [key], CH3CHO, colorless liquid aldehyde, sometimes simply called aldehyde. It melts at −123℃, boils at 20.8℃, and is soluble in water and ethanol. It is formed by th...

Garland, Judy

(Encyclopedia)Garland, Judy, 1922–69, American singer and film actress, b. Grand Rapids, Minn., originally named Frances Gumm. She sang in her father's theater from the age of four as one of The Gumm Sisters; she...

Krasnoyarsk Territory

(Encyclopedia)Krasnoyarsk Territory, administrative division (1989 pop. 3,595,000), c.928,000 sq mi (2,403,520 sq km), central Siberian Russia, extending from the Sayan Mts. and the Minusinsk basin in the south acr...

ruthenium

(Encyclopedia)ruthenium ro͞othēˈnēəm [key], metallic chemical element; symbol Ru; at. no. 44; at. wt. 101.07; m.p. about 2,310℃; b.p. about 3,900℃; sp. gr. 12.41 at 20℃; valence commonly +2, +3, +4, +6, ...

platinum

(Encyclopedia)platinum plătˈənəm [key], metallic chemical element; symbol Pt; at. no. 78; at. wt. 195.084; m.p. 1,772℃; b.p. 3,827±100℃; sp. gr. 21.45 at 20℃; valence +2 or +4. Pure platinum is a malleab...

Athena

(Encyclopedia)Athena pălˈəs [key], in Greek religion and mythology, one of the most important Olympian deities. According to myth, after Zeus seduced Metis he learned that any son she bore would overthrow him, s...

cold fusion

(Encyclopedia)cold fusion or low-temperature fusion, nuclear fusion of deuterium, an isotope of hydrogen, at or relatively near room temperature. Fusion, the reaction involved in the release of the destructive ener...

Ajax

(Encyclopedia)Ajax āˈjăks [key], Gr. Aias, in Greek mythology. 1 Hero of the Trojan War, son of Telamon, thus called the Telamonian Ajax, also called Ajax the Greater. In the Iliad he is represented as a giganti...

gold

(Encyclopedia)gold, metallic chemical element; symbol Au [Lat. aurum=shining dawn]; at. no. 79; at. wt. 196.96657; m.p. 1,064.43℃; b.p. 2,808℃; sp. gr. 19.32 at 20℃; valence +1 or +3. Gold is very ductile and...

Metellus

(Encyclopedia)Metellus mētĕlˈəs [key], ancient Roman family of the plebeian gens Caecilia. Lucius Caecilius Metellus, d. c.221 b.c., consul (251 b.c.), fought in the First Punic War. He was pontifex maximus (fr...

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