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Trojan asteroids

(Encyclopedia)Trojan asteroids, asteroids that revolve about the sun in the same orbit as a planet, occupying stable positions (known as Lagrangian points) either about 60° ahead of the planet in the orbit or abou...

X-ray crystallography

(Encyclopedia)X-ray crystallography, the study of crystal structures through X-ray diffraction techniques. When an X-ray beam bombards a crystalline lattice in a given orientation, the beam is scattered in a defini...

Adorno, Theodor Wiesengrund

(Encyclopedia)Adorno, Theodor Wiesengrund tāədôrˌ vēˈzəngro͝ond ädôrˈnō [key], 1903–69, German philosopher, born as Theodor Adorno Wiesengrund. Forced into exile by the Nazis (1933), he spent 16 years...

Hershey, Alfred Day

(Encyclopedia)Hershey, Alfred Day, 1908–1997, American microbiologist, b. Owosso, Mich., Ph.D., Michigan State College (now Michigan State Univ.), 1934. Hershey was a professor at the Washington Univ. School of M...

Marcuse, Herbert

(Encyclopedia)Marcuse, Herbert märko͞oˈzə [key], 1898–1979, U.S. political philosopher, b. Berlin. He was educated at the Univ. of Freiburg and with Theodore Adorno and Max Horkheimer founded the Frankfurt In...

Asch, Sholem

(Encyclopedia)Asch, Sholem or Shalom shōˈləm ăsh, shäˈləm [key], 1880–1957, Jewish novelist and playwright, b. Poland. He first came to the United States in 1909, was naturalized in 1920, and lived in vari...

Lubitsch, Ernst

(Encyclopedia)Lubitsch, Ernst lo͞oˈbĭch [key], 1892–1947, German-American film director, b. Berlin. He studied acting in his native city and in 1911 joined Max Reinhardt's theatre company. Lubitsch turned to d...

phenomenology

(Encyclopedia)phenomenology, modern school of philosophy founded by Edmund Husserl. Its influence extended throughout Europe and was particularly important to the early development of existentialism. Husserl attemp...

Christie, Dame Agatha

(Encyclopedia)Christie, Dame Agatha, 1890–1976, English detective story writer, b. Torquay, Devon, as Agatha Mary Clarissa Miller. Christie's second husband was the archaeologist Sir Max Mallowan, and she gained ...

Hartmann, Nicolai

(Encyclopedia)Hartmann, Nicolai nēˈkōlī [key], 1882–1950, German philosopher, b. Latvia. He taught at Marburg (1922–25), Cologne (1925–31), Berlin (1931–45), and Göttingen (1945–50). Abandoning his e...