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Cornelis De Jager
Cornelis "Kees" de Jager (; 29 April 1921 – 27 May 2021) was a Dutch astronomer who specialized in predicting solar variation to assess the Sun's impact on future climate. He was the General Secretary of the IAU from 1967 to 1973 and former director of the observatory at Utrecht. He was a fellow with the Committee for Skeptical Inquiry and played an important role in the European skeptical movement as the first chairman of both Stichting Skepsis and the European Council of Skeptical Organisations. Personal life and education Born in Den Burg on the Dutch island of Texel, de Jager spent his school years in the Dutch East Indies. In 1939, De Jager heard Professor Minnaert speak. De Jager said "I was so fascinated by what he said, that I decided right then and there to study Astronomy." From 1939 to 1945, he studied mathematics, physics and astronomy at Utrecht University. On 13 October 1952, he obtained his PhD with a thesis called "The Hydrogen Spectrum of the Sun". His supe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Den Burg
Den Burg is a town in the Dutch province of North Holland. It is a part of the municipality of Texel on the island of the same name, and lies about 12 km north of Den Helder. Overview Located in the middle of the island, Den Burg is the largest town of Texel. It features a historic centre and also the town hall. Outdoor markets are held each week in the main square. Nevertheless, Den Burg is the island's least tourist settlement. The town was first mentioned between 918 and 948 as Osterburghem, and means "castle" which refers to a castle built to defend against the Vikings. Notable sites The Dutch Reformed church is a three aisled basilica-like church with 11th century elements. The tower dates from the mid 15th century. After a lightning strike in 1537, it was enlarged. The Oudheidkamer was built in 1599 as guest house and nowadays contains a museum. A monument to the constructed language, Esperanto, is on the corner of Kogerstraat and De Zes. It was constructed in 1935 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
