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(zhôz f´ m sh l´ môNgôlfy ´) (KEY) , 1740–1810, and Jacques Étienne Montgolfier (zhäk ty n´) (KEY) , 1745–99, French inventors, brothers...
c.50,000 sq mi (130,000 sq km), barren region of central Australia, predominantly in the southeastern portion of the Northern Territory, extending S i...
(py r zhül s zär´ zhäNs n´) (KEY) , 1824–1907, French astronomer. In 1857–58, in Peru, he worked on the determination of the magnetic equator...
metallic chemical element; symbol Ag [Lat. argentum]; at. no. 47; at. wt. 107.8682; m.p. 961.93°C; b.p. 2,212°C; sp. gr. 10.5 at 20°C; valence +1 o...
1877–1957, American astronomer, b. Oyster Bay, N.Y., grad. Princeton, 1897. In 1902 he went to Cambridge, England, to study. He returned to Princeto...
(p r j ´n ) (KEY) , c.1445–1523?, Umbrian painter, b. near Perugia. His real name was Pietro di Cristoforo Vannucci. Perugino is, after Raphael, th...