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zenith

(Encyclopedia) zenith, in astronomy, the point in the sky directly overhead; more precisely, it is the point at which the celestial sphere is intersected by an upward extension of a plumb line from…

Norfolk, John Howard, 1st duke of

(Encyclopedia) Norfolk, John Howard, 1st duke ofNorfolk, John Howard, 1st duke ofnôrˈfək [key], 1430?–1485, English nobleman. The grandson of Thomas Mowbray, 1st duke of Norfolk, he held considerable…

Schomburgk, Sir Robert Hermann

(Encyclopedia) Schomburgk, Sir Robert HermannSchomburgk, Sir Robert Hermannshŏmˈbərk [key], 1804–65, English traveler and explorer, b. Germany. Under the direction of the Royal Geographical Society…

Scève, Maurice

(Encyclopedia) Scève, MauriceScève, Mauricemōrēsˈ sĕv [key], c.1510–c.1564, French poet. While studying at Avignon he discovered the tomb of Laura, to whom Petrarch directed many of his sonnets.…

Bad Langensalza

(Encyclopedia) Bad Langensalza Bad Langensalza bät längˌənzälˈtsä [key], town,…

Siemens, Ernst Werner von

(Encyclopedia) Siemens, Ernst Werner vonSiemens, Ernst Werner vonĕrnst vĕrˈnər fən zēˈməns [key], 1816–92, German electrical engineer and inventor. He was a founder and director of Siemens and Halske…

proper motion

(Encyclopedia) proper motion, in astronomy, apparent movement of a star on the celestial sphere, usually measured as seconds of arc per year; it is due both to the actual relative motions of the sun…

Stendal

(Encyclopedia) StendalStendalshtĕnˈdäl [key], city (1994 pop. 47,252), Saxony-Anhalt, N central Germany, on the Uchte River. It is a major rail junction and has sugar refineries, metalworks, food…

Sabine

(Encyclopedia) SabineSabinesăbēnˈ [key], river, c.575 mi (925 km) long, rising on the prairies NE of Dallas, Tex. It flows SE across Texas, then south to mark the Texas–Louisiana line. Near its mouth…

R

(Encyclopedia) R, 18th letter of the alphabet, corresponding to Greek rho. When in Latin alphabets the letters for p and r became similar in appearance, the rho form (P; which at first was used for…