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Baeck, Leo

(Encyclopedia)Baeck, Leo lāˈō bĕk [key], 1873–1956, German rabbi and scholar. He studied at the conservative Jewish Theological Seminary of Breslau and then at the liberal Hochschule für die Wissenschaft des...

Frobenius, Leo

(Encyclopedia)Frobenius, Leo lāˈō frōbāˈnēo͝os [key], 1873–1938, German archaeologist and anthropologist. An authority on prehistoric art and culture, especially of Africa, he organized 12 expeditions to ...

Ceres, in astronomy

(Encyclopedia)Ceres sîrˈēz [key], in astronomy, a dwarf planet, the first asteroid to be discovered. It was found on Jan. 1, 1801, by G. Piazzi. He took three distinct observations; on the basis of these the mat...

Delibes, Léo

(Encyclopedia)Delibes, Léo lāôˈ dəlēbˈ [key], 1836–91, French composer. After studying at the Conservatory in Paris, he became an accompanist at the Théâtre-Lyrique in 1853, and, ten years later, at the ...

Tolstoy, Leo, Count

(Encyclopedia)Tolstoy, Leo, Count, Rus. Lev Nikolayevich Tolstoi (lyĕf), 1828–1910, Russian novelist and philosopher, considered one of the world's greatest writers. About 1876 the doubts that had beset Tols...

Szilard, Leo

(Encyclopedia)Szilard, Leo sĭˈlärd [key], 1898–1964, American nuclear physicist and biophysicist, born in Hungary. He was educated at the Budapest Institute of Technology and the Univ. of Berlin, receiving a d...

phase, in astronomy

(Encyclopedia)CE5 Phases of the moon phase, in astronomy, the measure of how much of the illuminated surface of a planet or satellite can be seen from a point at a distance from that body; the term is most ofte...

Sowerby, Leo

(Encyclopedia)Sowerby, Leo sōˈərbē [key], 1895–1968, American composer and organist, b. Grand Rapids, Mich. Sowerby studied at the American Conservatory, Chicago, and with Percy Grainger. In 1921 an American ...

Vesta, in astronomy

(Encyclopedia)Vesta vĕsˈtə [key], in astronomy, the fourth asteroid to be discovered. It was found in 1807 by H. Olbers. It is the third largest asteroid in size, with a diameter of c.326 mi (525 km). Its averag...

Titan , in astronomy

(Encyclopedia)Titan tīˈtən [key], in astronomy, the largest of the named moons, or natural satellites, of Saturn. Also known as Saturn VI (or S6), Titan is 3,200 mi (5,150 km) in diameter, orbits Saturn at a mea...