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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...

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...

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...

Alasco, Johannes

(Encyclopedia)Alasco or à Lasco, Johannes: see Laski, John. ...

Cocceius, Johannes

(Encyclopedia)Cocceius, Johannes kŏksēˈəs [key], 1603–69, German theologian, whose surname was originally Koch or Koken. Born in Bremen, he went to Holland, where he was professor at Francken and Leiden. He p...

Clericus, Johannes

(Encyclopedia)Clericus, Johannes: see Le Clerc, Jean. ...

Evald, Johannes

(Encyclopedia)Evald, Johannes: see Ewald, Johannes. ...

Fibiger, Johannes

(Encyclopedia)Fibiger, Johannes yôhäˈnəs fēˈbēgər [key], 1867–1928, Danish pathologist and physician. He served as professor of pathological anatomy at the Univ. of Copenhagen. For his experimental studie...