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Kepler, Johannes
(Encyclopedia)Kepler, Johannes yōhäˈnəs kĕpˈlər [key], 1571–1630, German astronomer. From his student days at the Univ. of Tübingen, he was influenced by the Copernican teachings. From 1593 to 1598 he was...Witelo of Silesia
(Encyclopedia)Witelo of Silesia or Vitelo, c.1230–75, Silesian physicist, philosopher, and theologian. He studied in Paris and Padua and spent time at the papal palace in Viterbo, Italy. His ten-volume work on op...Bürgi, Joost
(Encyclopedia)Bürgi, Joost or Jost, 1552–1632, Swiss mathematician and instrument maker. As the official clockmaker (1579–92) to Duke Wilhelm IV of Hesse-Kassell, he developed the first clock with a minute han...Graz
(Encyclopedia)Graz gräts [key], city, capital of Styria prov., SE Austria, on the Mur River. The second la...Kepler's laws
(Encyclopedia) CE5 Schematic representation of Kepler's second law: The areas ABF and A′B′F′ are equal and are swept out in equal intervals of time by a planet orbiting around the sun (at F). Kepler's laws...Tübingen
(Encyclopedia)Tübingen tüˈbĭng–ən [key], city (1994 pop. 83,553), Baden-Württemberg, SW Germany, on the Neckar River. It is a cultural and industrial center; manufactures include textiles, machinery, metal ...Johannes von Saaz
(Encyclopedia)Johannes von Saaz (Johannes von Tepl) yōhänˈəs fən zäts, tĕpˈəl [key], c.1350–c.1414, Bohemian humanist and writer. Johannes is best known for his powerful work Der Ackermann aus Böhmen (c...planetary system
(Encyclopedia)planetary system, a star and all the celestial bodies bound to it by gravity, especially planets and their natural satellites. Until the last decade of the 20th cent., the only planetary system known ...planet
(Encyclopedia)planet [Gr.,=wanderer], a large nonluminous body of rock, gas, or ice that orbits the sun or another star, has a rounded shape due to gravity, and has cleared its orbit of smaller objects. The term, o...Koch, Johannes
(Encyclopedia)Koch, Johannes: see Cocceius, Johannes. ...Browse by Subject
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