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diesel engine

(Encyclopedia)diesel engine, type of internal-combustion engine invented by the German engineer Rudolf Diesel and patented by him in 1892. Although his engine was designed to use coal dust as fuel, the diesel engin...

Johnson, Judy

(Encyclopedia)Johnson, Judy (William Julius Johnson), 1899–1989, American baseball player, b. Snow Hill, Md. His father, a boxing coach, wanted him to be a prizefighter, but he started playing semipro baseball in...

Ammanati, Bartolomeo

(Encyclopedia)Ammanati, Bartolomeo bärtōlōmĕˈō äm-mänäˈtē [key], 1511–92, Italian sculptor and architect. He studied under Bandinelli in Florence and assisted Jacopo Sansovino in his work on the Librar...

Julian Day calendar

(Encyclopedia)Julian Day calendar, system of astronomical dating that allows the difference between two dates to be calculated more easily than conventional civil calendars with their uneven months. It was devised ...

Social War

(Encyclopedia)Social War or Marsic War [Lat. socii=allies], 91b.c.–88 b.c., struggle brought on by demands of the Italian allies for the privileges of Roman citizenship. The allies had fought on the side of Rome ...

Tisza, Kálmán

(Encyclopedia)Tisza, Kálmán kälˈmän tĭˈsŏ [key], 1830–1902, Hungarian premier (1875–90), of an old Calvinist family. He entered politics in the Hungarian revolution of Mar., 1848. Elected (1861) to the ...

Balbus

(Encyclopedia)Balbus (Lucius Cornelius Balbus) bălˈbəs [key], fl. 1st cent. b.c., Roman statesman, b. Gades (now Cádiz, Spain). He won notice for brilliant service against Sertorius, and Pompey brought him to R...

Fonteyn, Dame Margot

(Encyclopedia)Fonteyn, Dame Margot fŏntānˈ [key], 1919–91, English ballerina. Fonteyn was for many years prima ballerina assoluta of the Royal Ballet. Her original name was Margaret Hookham. In 1934 she joined...

Baade, Walter

(Encyclopedia)Baade, Walter välˈtər bäˈdə [key], 1893–1960, German-born American astronomer. From 1919 to 1931 he was on the staff of the Hamburg observatory; from 1931 to 1958, at the Mt. Wilson observator...

Katz, Sir Bernard

(Encyclopedia)Katz, Sir Bernard, 1911–2003, British biophysicist, b. Germany, M.D. Univ. of Leipzig, 1934; Ph.D. University College, London, 1938. Katz became a British subject in 1941. He was a professor at Univ...