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Brin, Sergey Mikhaylovich

(Encyclopedia)Brin, Sergey Mikhaylovich, 1973–, American business executive and computer scientist, b. Moscow, grad. Univ. of Maryland (B.S., 1993) and Stanford (M.S., 1995). His family immigrated to the United S...

ureter

(Encyclopedia)ureter yo͝orēˈtər [key], thick-walled tube that conveys urine from the kidney to the urinary bladder. It is approximately 10 in. (25.4 cm) long, with the upper half located in the abdomen and the ...

Gandhi, Sonia

(Encyclopedia)Gandhi, Sonia gänˈdē [key], 1946–, Indian politician, b. Turin, Italy, as Sonia Maino. She met Rajiv Gandhi in 1965 when they were students in Cambridge, England. They were married in 1968 and se...

folk medicine

(Encyclopedia)folk medicine, methods of curing by means of healing objects, herbs, or animal parts; ceremony; conjuring, magic, or witchcraft; and other means apart from the formalized practice of medical science. ...

propeller

(Encyclopedia)propeller, device consisting of a hub with one or more blades that propels a craft to which it is attached by rotating its blades in a fluid such as air or water. In the latter part of the 1830s the S...

Tyler, Wat

(Encyclopedia)Tyler, Wat, d. 1381, English rebel. His given name appears in full as Walter; his surname signifies the trade of a roof tiler. He came into prominence as the leader of the rebellion of 1381, known as ...

proton

(Encyclopedia)proton, elementary particle having a single positive electrical charge and constituting the nucleus of the ordinary hydrogen atom. The positive charge of the nucleus of any atom is due to its protons....

low-temperature physics

(Encyclopedia)low-temperature physics, science concerned with the production and maintenance of temperatures much below normal, down to almost absolute zero, and with various phenomena that occur only at such tempe...

first aid

(Encyclopedia)first aid, immediate and temporary treatment of a victim of sudden illness or injury while awaiting the arrival of medical aid. Proper early measures may be instrumental in saving life and ensuring a ...

Kuhn, Bowie Kent

(Encyclopedia)Kuhn, Bowie Kent bo͞oˈē, kyo͞on [key], 1926–2007, American lawyer and commissioner of baseball, b. Takoma Park, Md. He was legal counsel for the baseball club owners before his election as commi...