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astrometry

(Encyclopedia)astrometry: see astronomy.

Medici, Giovanni de', 1498–1526, Italian condottiere

(Encyclopedia)Medici, Giovanni de', or Giovanni delle Bande Nere jōvänˈnē dĕlˈlā bänˈdā nāˈrā [key] [Ital.,=of the black bands], 1498–1526, Italian condottiere; great-grandson of Lorenzo de' Medici (...

Ganesa

(Encyclopedia)Ganesa gənāˈsə [key], b. 1507, d. after 1564, Indian astronomer. As a boy of 13 in a village N of Mumbai, Ganesa wrote a treatise on astronomy, the Grahalaghava, which has often been reprinted and...

Caprivi Strip

(Encyclopedia)Caprivi Strip tsĭpˈfəl [key] [Ger. Zipfel=tip, point], region, c.300 mi (480 km) long and 50 mi (80 km) wide, NE Namibia, bordered on the N by Angola and Zambia and on the S by Botswana. It is name...

Burnham, Sherburne Wesley

(Encyclopedia)Burnham, Sherburne Wesley, 1838–1921, American astronomer, b. Thetford, Vt. After serving as observer at Dearborn Observatory, Chicago (1877–81, 1882–84), and as astronomer at Lick Observatory (...

Reber, Gröte

(Encyclopedia)Reber, Gröte, 1911–2002, American radio engineer, b. Chicago, Ill. After graduating from the Armour Institute of Technology (now the Illinois Institute of Technology) in 1933, Reber worked for seve...

Lowell, Percival

(Encyclopedia)Lowell, Percival, 1855–1916, American astronomer, b. Boston, grad. Harvard, 1876; brother of Abbott Lawrence Lowell and Amy Lowell. He visited Korea and Japan, where he acted as counselor and foreig...

Medici, Lorenzo de', 1492–1519, duke of Urbino

(Encyclopedia)Medici, Lorenzo de', 1492–1519, duke of Urbino (1516–19); son of Piero de' Medici. His uncle, Pope Leo X, made the youthful Lorenzo duke of Urbino. After his early death, however, Urbino reverted ...

Kuhn, Thomas Samuel

(Encyclopedia)Kuhn, Thomas Samuel, 1922–96, American philosopher and historian of science, b. Cincinnati, Ohio. He trained as a physicist at Harvard (Ph.D. 1949), where he taught the history of science from 1948 ...

Virgo

(Encyclopedia)Virgo vûrˈgō [key] [Lat.,=the virgin], constellation lying on the ecliptic (the sun's apparent path through the heavens) between Libra and Leo, and SW of Boötes; it is one of the constellations of...