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Binet, Alfred

(Encyclopedia) Binet, AlfredBinet, Alfredälfrĕdˈ bēnāˈ [key], 1857–1911, French psychologist. From 1894 he was director of the psychology laboratory at the Sorbonne. He is known for his research and…

Tobey, Mark

(Encyclopedia) Tobey, Mark, 1890–1976, American painter, b. Centerville, Wis. An avid traveler, Tobey visited China and Japan in 1934. He then developed his celebrated “white writing,” in which he…

topography

(Encyclopedia) topographytopographytəpŏgˈrəfē [key], description or representation of the features and configuration of land surfaces. Topographic maps use symbols and coloring, with particular…

space medicine

(Encyclopedia) space medicine, study of the medical and biological effects of space travel on living organisms. The principal aim is to discover how well and for how long humans can withstand the…

ape

(Encyclopedia) ape, any primate of the superfamily Hominoidea, which includes humans; this article, however, focuses on the nonhuman apes. The small apes, the gibbons and the siamang, and the…

Nussbaum, Martha Craven

(Encyclopedia) Nussbaum, Martha C., 1947–, American philosopher, b. New York City, Ph.D. Harvard University, 1975. The Ernst Freund Distinguished…

gene

(Encyclopedia) gene, the structural unit of inheritance in living organisms. A gene is, in essence, a segment of DNA that has a particular purpose, i.e., that codes for (contains the chemical…

Sigerist, Henry Ernest

(Encyclopedia) Sigerist, Henry ErnestSigerist, Henry Ernestsĭgˈərĭst [key], 1891–1957, American medical historian and writer, b. Paris, M.D. Univ. of Zürich, 1917. He taught history of medicine at…

Semple, Ellen Churchill

(Encyclopedia) Semple, Ellen Churchill, 1863–1932, American geographer, b. Louisville, Ky., grad. Vassar, 1882, and studied at the Univ. of Leipzig. A follower of the German geographer Friedrich…

Ratzel, Friedrich

(Encyclopedia) Ratzel, FriedrichRatzel, Friedrichfrēˈdrĭkh rätˈsəl [key], 1844–1904, German geographer. He traveled as a journalist in Europe (1869) and in Cuba, Mexico, and the United States (1872–…