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mechanism

(Encyclopedia)mechanism, philosophical theory about the nature of organic systems, holding that organisms are machines in the sense that they are material systems. Mechanism seeks to explain biological processes, i...

Menes

(Encyclopedia)Menes mēˈnēz [key], fl. 3200 b.c., king of ancient Egypt, of the first dynasty, the first Egyptian ruler for whom there are historical records. According to tradition, he seems to have united the s...

Miller, Merton H.

(Encyclopedia)Miller, Merton H., 1923–2000, American economist, grad. Harvard, 1943, Ph.D. Johns Hopkins, 1952. A professor at Carnegie-Mellon Univ. (1953–61) and the Univ. of Chicago (1961–93), he developed ...

Kayser, Heinrich Gustav Johannes

(Encyclopedia)Kayser, Heinrich Gustav Johannes hīnˈrĭkh go͝osˈtäf yōhänˈəs kīˈzər [key], 1853–1940, German physicist. He was professor at Bonn from 1894 to 1920. He is known for his work in sound and...

tunneling

(Encyclopedia)tunneling, quantum-mechanical effect by which a particle can penetrate a barrier into a region of space that would be forbidden by ordinary classical mechanics. Tunneling is a direct result of the wav...

Winnicott, Donald

(Encyclopedia)Winnicott, Donald, 1896–1971, British psychoanalyst, pediatrician, and child psychiatrist. He worked at the Paddington Green Children's Hospital in London for over 40 years, beginning in 1923, where...

Wagner, Adolf Heinrich Gotthilf

(Encyclopedia)Wagner, Adolf Heinrich Gotthilf äˈdôlf hīnˈrĭkh gôtˈhĭlf vägˈnər [key], 1835–1917, German economist and socialist, studied at Göttingen and Heidelberg. He taught economics at several un...

Bütschli, Otto

(Encyclopedia)Bütschli, Otto ôˈtō büchˈlē [key], 1848–1920, German zoologist. He was professor of zoology at the Univ. of Heidelberg. His researches on invertebrate animals advanced knowledge of the develo...

Bridgman, Percy Williams

(Encyclopedia)Bridgman, Percy Williams, 1882–1961, American physicist, b. Cambridge, Mass., grad. Harvard (B.A., 1904; Ph.D., 1908). From 1910 he taught at Harvard, as professor from 1919. He won the 1946 Nobel P...

Bergman, Torbern Olof

(Encyclopedia)Bergman, Torbern Olof to͝orˈbərn o͞oˈlôv bĕrˈyəmän [key], 1735–84, Swedish chemist, physicist, and mineralogist. A professor at the Univ. of Uppsala from 1758, he developed a theory of che...