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Esaki, Leo

(Encyclopedia)Esaki, Leo, 1925–, Japanese physicist, Ph.D. Univ. of Tokyo, 1959. Esaki was a researcher with IBM from 1960 until his retirement in 1992. He then served (1992–98) as president of the Univ. of Tsu...

Frank, Ilya Mikhailovich

(Encyclopedia)Frank, Ilya Mikhailovich, 1908–90, Soviet physicist, Ph.D. Moscow State Univ., 1935. He was a professor at Moscow State Univ. from 1944 until his death in 1990. Mikhailovich and Igor Y. Tamm won the...

Stuart, Robert

(Encyclopedia)Stuart, Robert, 1785–1843, American explorer, b. Scotland. He emigrated (1807) to Canada and became a fur trader. He joined in John Jacob Astor's Astoria venture, and in 1812 he led the overland par...

podiatry

(Encyclopedia)podiatry pōdīˈətrē, pə– [key], science concerned with disorders, diseases, and deformities of the feet, also called chiropody. Podiatrists treat such common conditions as bunions, corns and ca...

Whitney, Asa

(Encyclopedia)Whitney, Asa, 1797–1872, American merchant and transcontinental railroad projector, b. North Groton, Conn. He entered the mercantile business in New York City, acted as a foreign buyer for several y...

Younghusband, Sir Francis Edward

(Encyclopedia)Younghusband, Sir Francis Edward, 1863–1942, British explorer, b. India. He explored Manchuria in 1886. The following year he journeyed from China to India, crossing the Gobi desert and the Mustagh ...

capillary

(Encyclopedia)capillary kăpˈəlĕrˌē [key], microscopic blood vessel, smallest unit of the circulatory system. Capillaries form a network of tiny tubes throughout the body, connecting arterioles (smallest arter...

fiddler crab

(Encyclopedia)fiddler crab, common name for small, amphibious crabs belonging to the genus Uca. They are characterized by a rectangular carapace (shell) and a narrow abdomen, which is flexed under the body. They ar...

bubble chamber

(Encyclopedia)bubble chamber, device for detecting charged particles and other radiation by means of tracks of bubbles left in a chamber filled with liquid hydrogen or other liquefied gas. It was invented in 1952 b...

Persian Wars

(Encyclopedia)Persian Wars, 500 b.c.–449 b.c., series of conflicts fought between Greek states and the Persian Empire. The writings of Herodotus, who was born c.484 b.c., are the great source of knowledge of the ...