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Akerlof, George Arthur

(Encyclopedia)Akerlof, George Arthur, 1940–, American economist, b. New Haven, Conn., B.A. Yale, 1962, Ph.D. Massachusetts Institute of Technology, 1966. He has been a professor at the Univ. of California, Berkel...

empiricism

(Encyclopedia)empiricism ĕmpĭrˈĭsĭzəm [key] [Gr.,=experience], philosophical doctrine that all knowledge is derived from experience. For most empiricists, experience includes inner experience—reflection upo...

Alvarez, Luis Walter

(Encyclopedia)Alvarez, Luis Walter, 1911–88, American physicist, b. San Francisco, grad. Univ. of Chicago, 1932, Ph.D. 1936. He was awarded the 1968 Nobel Prize in Physics for his discovery of a large number of r...

Molina, Mario

(Encyclopedia)Molina, Mario (Mario José Molina-Pasquel y Henríquez), 1943–2020, Mexican chemist, Ph.D. Univ. of California, Berkeley, 1972. Molina was a professor at the Univ. of California, Irvine from 1975 to...

N. Scott Momaday

(Encyclopedia)N. Scott Momaday (Navarre Scott Momaday), 1934–2024, American writer whose works are reflective of his Kiowa culture, b. Lawton, Okla., B.A. Univ. of ...

nobelium

(Encyclopedia)nobelium nōbēˈlēəm [key], artificially produced radioactive chemical element; symbol No; at. no. 102; mass no. of most stable isotope 259; m.p. 827℃; b.p. and density unknown; valence +2, +3. I...

Le Guin, Ursula Kroeber

(Encyclopedia)Le Guin, Ursula Kroeber krōˈbər lə gwĭnˈ [key], 1929–2018, American writer, b. Berkeley, Calif.; daughter of anthropologist Alfred Louis Kroeber. Possessing a keen eye for physical and cultura...

neptunium

(Encyclopedia)neptunium nĕpto͞oˈnēəm [key], radioactive chemical element; symbol Np; at. no. 93; mass number of most stable isotope 237; m.p. about 640℃; b.p. 3,902℃ (estimated); sp. gr. 20.25 at 20℃; va...

association

(Encyclopedia)association, in psychology, a connection between different sensations, feelings, or ideas by virtue of their previous occurrence together in experience. The concept of association entered contemporary...

mendelevium

(Encyclopedia)mendelevium mĕndəlāvˈēəm [key], artificially produced radioactive chemical element; symbol Md; at. no. 101; mass no. of most stable isotope 258; m.p. 827℃; b.p. and sp. gr. unknown; valence +1...