(Encyclopedia) Ebert, FriedrichEbert, Friedrichfrēˈdrĭkh āˈbərt [key], 1871–1925, first president (1919–25) of the German republic. A Social Democratic deputy in the Reichstag, in 1913 he became…
(Encyclopedia) BolyaiBolyaibōˈlyoi [key], family of Hungarian mathematicians. The father, Farkas, or Wolfgang, Bolyai, 1775–1856, b. Bolya, Transylvania, was educated in Nagyszeben from 1781 to 1796…
(Encyclopedia) Weyprecht, KarlWeyprecht, Karlkärl vīˈprĕkht [key], 1838–81, German arctic explorer. With Julius von Payer he made a voyage to Novaya Zemlya in 1871. Weyprecht and Payer were leaders…
(Encyclopedia) SieboldSieboldzēˈbôlt [key], family of German scientists. It includes Karl Kaspar von SieboldSieboldkärl käsˈpär fən [key], 1736–1807, anatomist and surgeon, who was professor at the…
An automaton figure of a human being (Greek, andros-eidos, a man's likeness). One of the most famous of these machines is that by M. Vaucanson, called the flute-player. The chess-player by…
(Encyclopedia) Wickram, JörgWickram, Jörgyörk vĭkˈräm [key], c.1505–62, German writer. Wickram wrote Meisterlieder, farces such as Der treue Eckart [faithful Eckart] (1538), biblical drama such as…
From Adrenaline to the Zipper See also Famous Firsts in Aviation, Nobel Prizes.Adrenaline:(isolation of) John Jacob Abel, U.S., 1897.Aerosol can:Erik Rotheim, Norway, 1926.Air brake:George…
(Encyclopedia) Hall effect, experiment that shows the sign of the charge carriers in a conductor. In 1879 E. H. Hall discovered that when he placed a metal strip carrying a current in a magnetic…
