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Oort, Jan Hendrik

(Encyclopedia)Oort, Jan Hendrik ōrt [key], 1900–1992, Dutch astronomer. He confirmed (1927) Bertil Lindblad's theory of the Milky Way galaxy's rotation. In the 1950s he and his colleagues used radio astronomical...

Kuiper, Gerard Peter

(Encyclopedia)Kuiper, Gerard Peter or Gerrit Pieter gĕrˈĭt pēˈtər kīˈpər [key], 1905–73, American astronomer, b. the Netherlands. Kuiper is considered to be the father of modern planetary science for his...

Oort cloud

(Encyclopedia)Oort cloud: see comet.

Balen, Hendrik van

(Encyclopedia)Balen, Hendrik van hĕnˈdrĭk vän bäˈlən [key], 1575–1632, Flemish painter, b. Antwerp. Van Balen usually provided the figures for scenes in which another painter, frequently Jan Brueghel, desi...

Brand, Sir John Henry

(Encyclopedia)Brand, Sir John Henry, or Jan Hendrik Brand yän hĕnˈdrək bränt [key], 1823–88, South African politician, president of the Orange Free State, b. Capetown. He was called to the English bar in 184...

Conscience, Hendrik

(Encyclopedia)Conscience, Hendrik hĕnˈdrĭk kôNsēäNsˈ [key], 1812–83, Flemish novelist, a founder of modern Flemish literature. His many historical novels were romantic but powerful, in the tradition of Sco...

Goltzius, Hendrik

(Encyclopedia)Goltzius, Hendrik or Hendrick hĕnˈdrĭk gôltˈsēüs [key], 1558–1617, Dutch line engraver and painter; son of a stained-glass painter. He is said to have blended the naturalism of Northern Europ...

Niclaes, Hendrik

(Encyclopedia)Niclaes, Hendrik: see Familists. ...

Mesdag, Hendrik Willem

(Encyclopedia)Mesdag, Hendrik Willem hĕnˈdrĭk vĭlˈəm mĕsˈdäkh [key], 1831–1915, Dutch marine painter. He gave up banking at 35 to study painting. He later lived at The Hague and was known as a painter an...

Lorentz, Hendrik Antoon

(Encyclopedia)Lorentz, Hendrik Antoon hĕnˈdrək änˈtōn lōˈrĕnts [key], 1853–1928, Dutch physicist, a pioneer in formulating the relations between electricity, magnetism, and light. He was one of the first...