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Jensen, Johannes Hans Daniel

(Encyclopedia)Jensen, Johannes Hans Daniel, 1907–73, German physicist, Ph.D. Univ. of Hamburg, 1932. Jensen was a professor at the Technical Univ. of Hanover from 1941 to 1949, when he joined the faculty at Heide...

Kayser, Heinrich Gustav Johannes

(Encyclopedia)Kayser, Heinrich Gustav Johannes hīnˈrĭkh go͝osˈtäf yōhänˈəs kīˈzər [key], 1853–1940, German physicist. He was professor at Bonn from 1894 to 1920. He is known for his work in sound and...

Oud, Jacobus Johannes Pieter

(Encyclopedia)Oud, Jacobus Johannes Pieter yäkōˈbəs yōhäˈnəs pēˈtər out [key], 1890–1963, Dutch architect. Oud's interest in abstract painting led him to conceive of buildings composed in terms of pure...

Warming, Johannes Eugenius Bülow

(Encyclopedia)Warming, Johannes Eugenius Bülow yōhänˈəs ĕo͝ogāˈnēo͝os büˈlou värmˈĭng [key], 1841–1924, Danish botanist, a founder of the science of plant ecology. He was a professor at the Univ. ...

Sommerfeld, Arnold Johannes Wilhelm

(Encyclopedia)Sommerfeld, Arnold Johannes Wilhelm ärˈnōlt yōhänˈəs vĭlˈhĕlm zômˈərfĕlt [key], 1868–1951, German physicist and teacher. He received a Ph.D. at Königsburg Univ. in 1891 and was a prof...

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...

Brahe, Tycho

(Encyclopedia)Brahe, Tycho tīˈkō brä [key], 1546–1601, Danish astronomer. The most prominent astronomer of the late 16th cent., he paved the way for future discoveries by improving instruments and by his prec...

Waals, Johannes Diderik van der

(Encyclopedia)Waals, Johannes Diderik van der: see van der Waals, Johannes Diderik. ...

Agricola, Johann

(Encyclopedia)Agricola, Johann or Johannes əgrĭkˈələ [key], c.1494–1566, German Protestant minister, whose family name was Schnitter (originally Schneider). He was born at Eisleben and is sometimes called M...

Obrecht, Jacob

(Encyclopedia)Obrecht, Jacob yäˈkōp ōˈbrĕkht [key], c.1450–1505, Flemish composer. Obrecht was ordained as a priest in 1480. He wrote an early four-part setting of the St. Matthew Passion. His sacred music ...