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Purkinje, Johannes Evangelista
(Encyclopedia)Purkinje, Johannes Evangelista yōhänˈəs āˌväng-gālĭsˈtä po͝orˈkĭnyā [key], 1787–1869, Czech physiologist. While professor (1823–50) at the Univ. of Breslau he pioneered in establish...Ives, Frederic Eugene
(Encyclopedia)Ives, Frederic Eugene, 1856–1937, American inventor, b. Litchfield, Conn. A pioneer in the development of orthochromatic and trichromatic photography and of photoengraving, he followed an earlier su...Canada balsam
(Encyclopedia)Canada balsam, yellow, oily, resinous exudation obtained from the balsam fir. It is an oleoresin (see resin) with a pleasant odor but a biting taste. It is a turpentine rather than a true balsam. On s...Zsigmondy, Richard Adolf
(Encyclopedia)Zsigmondy, Richard Adolf, 1865–1929, Austrian-German chemist, Ph.D. Univ. of Munich, 1889. Zsigmondy was a lecturer at the Univ. of Munich (1887–1893) and at the Univ. of Graz (1893–97), then wo...Malpighi, Marcello
(Encyclopedia)Malpighi, Marcello märchĕlˈlō mälpēˈgē [key], 1628–94, Italian anatomist. A pioneer in the use of the microscope, he made many valuable observations on the structure of plants and animals. H...pathology
(Encyclopedia)pathology, study of the cause of disease and the modifications in cellular function and changes in cellular structure produced in any cell, organ, or part of the body by disease. The changes in tissue...Gabor, Dennis
(Encyclopedia)Gabor, Dennis, 1900–1979, Hungarian-born British physicist, Ph.D. Berlin Institute of Technology 1927. Gabor was a researcher with the Thomson-Houston Company, England, from 1934 to 1949 and a profe...Harvey, William
(Encyclopedia)Harvey, William, 1578–1657, English physician considered by many to have laid the foundation of modern medicine, b. Folkestone, studied at Cambridge, M.D. Univ. of Padua, 1602. Returning to London, ...Swammerdam, Jan
(Encyclopedia)Swammerdam, Jan yän väˈmərdäm [key], 1637–80, Dutch naturalist. He was a pioneer in the use of the microscope. Before he turned to religious contemplation his chief interest was the study of in...correspondence principle
(Encyclopedia)correspondence principle, physical principle, enunciated by Niels Bohr in 1923, according to which the predictions of the quantum theory must correspond to the predictions of the classical theories of...Browse by Subject
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