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Bolan Pass

(Encyclopedia)Bolan Pass or Bholan Pass both: bōlänˈ [key], gap in the central Brahui Range, W Pakistan; c.60 mi (100 km) long, alt. 5,880 ft (1,792 m). A railroad and highway cross the pass en route to the Afgh...

Blériot, Louis

(Encyclopedia)Blériot, Louis lwē blārēōˈ [key], 1872–1936, French aviator and inventor. He devoted the fortune acquired by his invention of an automobile searchlight to the invention and construction of mon...

resistance, in electricity

(Encyclopedia)resistance, property of an electric conductor by which it opposes a flow of electricity and dissipates electrical energy away from the circuit, usually as heat. Optimum resistance is provided by a con...

Drew, Charles Richard

(Encyclopedia)Drew, Charles Richard, 1904–50, African-American physician, b. Washington, D.C. A surgeon and a professor at Howard Univ. (1935–36; 1942–50), he developed a means of preserving blood plasma for ...

Grayson, Cary Travers

(Encyclopedia)Grayson, Cary Travers, 1878–1938, American naval officer and surgeon, b. Culpeper co., Va. As a physician he entered (1903) the U.S. navy, was graduated (1904) from the navy medical school, and afte...

Milvian Bridge

(Encyclopedia)Milvian Bridge or Mulvian Bridge, Latin Pons Milvius or Pons Mulvius. It was built by Marcus Aemilius Scaurus in 109 b.c. over the Tiber near Rome as part of the Flaminian Way. By defeating Maxentius ...

Kalundborg

(Encyclopedia)Kalundborg käˈlo͝onbôr [key], city (1992 pop. 15,304), Vestsjælland co., central Denmark, a port on the Kalundborg Fjord, an arm of the Store Bælt. It is a commercial, industrial, and communicat...

Roddenberry, Gene

(Encyclopedia)Roddenberry, Gene (Eugene Wesley Roddenberry), 1921–91, American television writer and producer, b. El Paso, Tex. After being awarded the Distinguished Flying Cross and the Air Medal for flying 89 m...

Sprengel, Christian Konrad

(Encyclopedia)Sprengel, Christian Konrad krĭsˈtyän kônˈrät shprĕngˈəl [key], 1750–1816, German botanist. Although director of a school at Spandau and tutor in Berlin, he devoted himself chiefly to the st...

Styx

(Encyclopedia)Styx stĭks [key], in Greek mythology, river of Hades that the souls of the dead had to cross on their journey from the realm of the living. It was a sacred river, and by its name even the gods took t...