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Maurice of Nassau

(Encyclopedia)Maurice of Nassau năsˈô [key], 1567–1625, prince of Orange (1618–25); son of William the Silent by Anne of Saxony. He became stadtholder of Holland and Zeeland after the assassination (1584) of...

McClintock, Sir Francis Leopold

(Encyclopedia)McClintock, Sir Francis Leopold, 1819–1907, British arctic explorer. As a lieutenant in the navy he was assigned to his first arctic service in 1848, when Sir James Clark Ross went in search of the ...

acoustics

(Encyclopedia)acoustics əko͞oˈstĭks [key] [Gr.,=the facts about hearing], the science of sound, including its production, propagation, and effects. Various branches of acoustics that deal with different aspects...

echo, in acoustics

(Encyclopedia)echo, reflection of a sound wave back to its source in sufficient strength and with a sufficient time lag to be separately distinguished. If a sound wave returns within 1⁄10 sec, the human ear is in...

Linacre, Thomas

(Encyclopedia)Linacre or Lynaker, Thomas both: lĭˈnəkər [key], 1460?–1524, English humanist and physician. He took the degree of doctor of medicine at the Univ. of Padua, returned to England c.1492, and becam...

Roon, Albrecht Theodor Emil, Graf von

(Encyclopedia)Roon, Albrecht Theodor Emil, Graf von älˈbrĕkht tāˈōdôr āˈmēl gräf fən rōn [key], 1803–79, Prussian field marshal. A military reformer, he insistently pleaded for the reorganization of ...

Benedetti, Vincent

(Encyclopedia)Benedetti, Vincent bānādĕtˈtē [key], 1817–1900, French diplomat, b. Corsica, made a count by Napoleon III. He was ambassador to Prussia from 1864 to 1870. In an interview (1870) at Ems with Ki...

Scheidemann, Philipp

(Encyclopedia)Scheidemann, Philipp fēˈlĭp shīˈdəmän [key], 1865–1939, German Social Democratic leader. A member of the Reichstag from 1898, he became (1918) secretary of state without portfolio in the cabi...

sonic boom

(Encyclopedia)CE5 Sonic boom wave pattern from a supersonic aircraft and variation in pressure sonic boom, shock wave produced by an object moving through the air at supersonic speed, i.e., faster than the spee...

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