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Sprengel Vacuum Pump
Sprengel is a surname. Notable people with the surname include: * Hermann Sprengel (1834–1906), chemist * Karl or Carl Sprengel (1787–1859), botanist * Kurt Sprengel (1766–1833), botanist * Christian Konrad Sprengel (1750–1816), teacher and theologist who studied flower biology * Bernhard Sprengel (1899–1985), chocolate manufacturer and art collector See also * Sprengel Museum, a museum of modern art in Hanover, Germany * Sprengel pump The Sprengel pump is a vacuum pump that uses drops of mercury falling through a small-bore capillary tube to trap air from the system to be evacuated. It was invented by Hanover-born chemist Hermann Sprengel in 1865 while he was working in Londo ..., a vacuum pump invented by Hermann Sprengel {{surname ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hermann Sprengel
Hermann Sprengel FRS (29 August 1834 – 14 January 1906) was a German-British chemist who discovered the explosive nature of picric acid in 1873, patented safety explosives and invented the mercurial air pump. Life He was born at Schillerslage, near Hanover, on 29 August 1834. Sprengel was the son of George Sprengel. He was educated in Göttingen and earned his degree at the university at Heidelberg in 1858. He moved to England the following year and became a naturalised British subject. He was first employed as an assistant in chemical laboratory in Oxford and then moved to London to work at Guy's and St Bartholomew's Hospitals, before working in the chemical works of Thomas Farmer of Kennington (1865-1870). There he invented a generic class of materials called Sprengel explosives. In addition he invented a very robust and continuously operable device called the Sprengel Pump which could reduce the amount of air in a chamber to one-millionth of its volume paving the way ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl Sprengel
Karl or Philipp Carl Sprengel (March 29, 1787 – April 19, 1859) was a German botanist from Schillerslage (now part of Burgdorf, Hanover). Sprengel worked under Albrecht Thaer (1752–1828) in Celle. He then worked from 1804 to 1808 with Heinrich Einhof (1778–1808) in Möglin on agricultural studies. He travelled the world between 1810 and 1820, exploring agricultural ideas in Asia, Americas and Mesopotamia. Between 1821 and 1828 he studied natural sciences in Göttingen, where he eventually became professor. In the early 1830s he moved to Regenwalde (Resko), where he accepted position of the Chairman of the ''Pomorskie Towarzystwo Ekonomiczne'' (Pomeranian Economic Society), which he held for the rest of his life. Having his financial needs satisfied, finally he could fulfil his dream and establish ''Regenwalde Akademie der Landwirtschaft'' (Academy of Agriculture in Resko), where he taught, studied and lived until his death in 1859. Influenced by (one of the student ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kurt Sprengel
Kurt Polycarp Joachim Sprengel (3 August 1766 – 15 March 1833) was a German botanist and physician who published an influential multivolume history of medicine, ''Versuch einer pragmatischen Geschichte der Arzneikunde'' (1792–99 in four volumes with later editions running to five) and several other medical reference works. Biography Sprengel was born at Boldekow in Pomerania, and he is considered of German nationality. His father, a clergyman, provided him with a thorough education of wide scope; as boy he distinguished himself as a linguist, in Latin and Greek, and also Arabic; his uncle, Christian Konrad Sprengel (1750–1816), is remembered for his studies in the fertilization of flowers by insects – a subject in which he reached conclusions many years ahead of his time. Spreng. appeared as an author at the age of fourteen, publishing a small work called '' Anleitung zur Botanik für Frauenzimmer'' ("guide to botany for women") in 1780. In 1784 he began to study the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Christian Konrad Sprengel
Christian Konrad Sprengel (22 September 1750 – 7 April 1816) was a German naturalist, theologist, and teacher. He is most famous for his research on plant sexuality. Sprengel was the first to recognize that the function of flowers was to attract insects, and that nature favoured cross-pollination. Along with the work of Joseph Gottlieb Kölreuter he set the foundations for the modern study of floral biology and anthecology, but his work was not widely recognized until Charles Darwin examined and confirmed several of his observations almost 50 years later; see Fertilisation of Orchids (1862). Life Sprengel was born in Brandenburg an der Havel in the Margraviate of Brandenburg. He was the 15th and the last son of a preacher Ernst Victor Sprengel and his second wife Dorothea Gnadenreich Schaeffer (died 1778). Ernst Victor's father had been an organist and he himself was a choir-master, teacher and later archdeacon. Christian Konrad was expected to continue the traditional ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bernhard Sprengel
Dr. Bernhard Sprengel (17 April 1899 – 22 January 1985) was a German chocolate manufacturer and modern art collector. Life Sprengel studied at the Goethe school and later took courses in political science. In May 1919 he became one of the first new members of the ''Corps Holsatia'' following the First World War. Then, after completing commercial training in Hamburg, he took over the management of the chocolate factory ''B. Sprengel & Co.'' in Hanover. Bernhard Sprengel had already developed a passion for 20th-century art and he had begun a private collection of paintings and sculpture, including works by Picasso, Chagall, Macke, Beckmann, Marc, Klee and Feininger. Some of these works were Nazi plunder, sourced via art dealer Hildebrand Gurlitt. On the occasion of his 70th birthday in 1969, Bernhard Sprengel donated his complete collection of the city of Hanover and made 2.5 million marks available for the building of a museum. The Sprengel Museum Sprengel Museum is a mu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sprengel Museum
Sprengel Museum is a museum of modern art in Hanover, Lower Saxony, holding one of the most significant collections of modern art in Germany. It is located in a building situated adjacent to the Masch Lake (german: Maschsee) approximately south of the state museum. The museum opened in , and the building, designed by Peter and Ursula Trint (of Cologne) and Dieter Quast (of Heidelberg), was extended in 1992. Bernhard Sprengel donated his extensive collection of modern art to the city of Hanover in 1969, as well as financially supporting the construction of the museum. The city of Hanover and the state of Lower Saxony agreed to operate the museum jointly. In addition to the works donated by Sprengel, the museum also houses 20th century artworks owned by Lower Saxony and Hanover. Expansion A further expansion, designed by Zurich-based architects Meili + Peter, was originally planned for 2010 but [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
