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Perrine, Charles Dillon

(Encyclopedia)Perrine, Charles Dillon pərīnˈ [key], 1867–1951, American astronomer, b. Steubenville, Ohio. He was on the staff of Lick Observatory (1893–1909) and was (1909–36) director of the Argentine Na...

Baze, Russell Avery

(Encyclopedia)Baze, Russell Avery, 1958–, Canadian-American jockey, b. Vancouver, Canada. He rode primarily at tracks in N California. In 2006 he surpassed Laffit Pincay, Jr.'s record for career wins, and in 2008...

encounter theory

(Encyclopedia)encounter theory, in astronomy, see solar system. ...

occultation

(Encyclopedia)occultation ŏkˌəltāˈshən [key], in astronomy, eclipse of one celestial body by another, e.g., when the moon lies between a star and the earth. Occultations of stars by the moon are important in ...

Horkheimer, Max

(Encyclopedia)Horkheimer, Max hôrkˈhīˌmər, hôrˈkīˌ– [key], 1895–1973, German philosopher and sociologist. As director (1930–58) of the Institute for Social Research in Frankfurt, he played an importa...

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