Ralph Bagnold (original) (raw)
Le général de brigade Ralph Alger Bagnold, membre de la Royal Society, officier de l’ordre de l’Empire britanniquené le 3 avril 1896 et décédé le 28 mai 1990 fut le fondateur du Long Range Desert Group durant la Seconde Guerre mondiale, un pionnier de l’exploration du désert avec la première traversée est-ouest du désert libyque en 1932. Géologue, il posa les fondations de l’étude des processus éoliens dans son ouvrage de référence The Physics of Blown Sand & Desert Dunes, publié pour la première fois en 1941. L’agence spatiale américaine fit appel à lui pour étudier les dunes de sable martiennes et un champ dunaire porte son nom en hommage.
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| dbo:abstract | Ralph Alger Bagnold, FRS (* 3. April 1896 in Plymouth, England; † 28. Mai 1990), war der Gründer und erste Kommandeur der Long Range Desert Group der British Army im Zweiten Weltkrieg. Er wird wegen seiner Aktivitäten in den 1930er Jahren als Pionier der Wüstenforschung betrachtet. Diese umfassen unter anderem die erste Ost-West-Durchquerung der Libyschen Wüste durch einen Europäer. Er war nicht nur Teilnehmer des Zweiten Weltkriegs, sondern auch ein Veteran des Ersten Weltkriegs. Bagnold war Ingenieur von Beruf. In seinem einflussreichen Buch The Physics of Blown Sand and Desert Dunes aus dem Jahr 1941 legte er die Grundlagen der Erforschung des Sandtransportes durch Wind. Das Buch ist immer noch eines der wichtigsten Fachbücher in diesem Bereich. So wurde es zum Beispiel von der NASA beim Studium von Sanddünen auf dem Mars benutzt. Seit 1944 war er Mitglied der Royal Society. (de) Brigadier Ralph Alger Bagnold, OBE, FRS, (3 April 1896 – 28 May 1990) was an English 20th-century desert explorer, geologist and soldier. In 1932, he staged the first recorded East-to-West crossing of the Libyan Desert. His work in the field of Aeolian processes was the basis for the book The Physics of Blown Sand and Desert Dunes, establishing the discipline of aeolian geomorphology, combining field work observations, experiments and physical equations. His work has been used by United States' space agency NASA in its study of the terrain of the planet Mars, the Bagnold Dunes on Mars' surface being named after him by the organisation. During the Second World War, he was a soldier in the British Army, in which he founded the behind-the-lines reconnaissance, espionage and raiding unit the "Long Range Desert Group", serving as its first commanding officer in the North Africa Campaign. (en) Le général de brigade Ralph Alger Bagnold, membre de la Royal Society, officier de l’ordre de l’Empire britanniquené le 3 avril 1896 et décédé le 28 mai 1990 fut le fondateur du Long Range Desert Group durant la Seconde Guerre mondiale, un pionnier de l’exploration du désert avec la première traversée est-ouest du désert libyque en 1932. Géologue, il posa les fondations de l’étude des processus éoliens dans son ouvrage de référence The Physics of Blown Sand & Desert Dunes, publié pour la première fois en 1941. L’agence spatiale américaine fit appel à lui pour étudier les dunes de sable martiennes et un champ dunaire porte son nom en hommage. (fr) Ralph Alger Bagnold (3 de abril de 1896 (126 anos) – 28 de maio de 1990) foi um militar, explorador e geólogo britânico. Durante a Segunda Guerra Mundial, Bagnold foi o fundador e o primeiro comandante de um agrupamento militar de deserto ("Long Range Desert Group"), organizado pelo Exército Britânico, para efetuar invasões atrás das linhas inimigas através do deserto da Líbia. É conhecido pelo pioneirismo na exploração de desertos, incluindo a primeira travessia leste-oeste registrada pelo deserto Líbio em 1932. Pesquisou e publicou em 1941 um livro sobre o transporte da areia pelo vento, formação e movimentação das dunas, que ainda é uma referência sobre o assunto. Este trabalho foi usado pela NASA para estudar as dunas de areia de Marte. Também foi um especialista sobre a física da movimentação de sedimentos pela água. É creditado a ele o desenvolvimento de uma bússola solar que não é afetada pelos grandes depósitos de minérios de ferro encontrados no deserto ou pelos veículos metálicos próximos, como ocorre com a bússola magnética. Tornou-se membro da Royal Society em 1944. Foi laureado com o Prêmio G. K. Warren pela "Academia Nacional de Ciências dos Estados Unidos" em 1969, com a Medalha Penrose de 1970 pela Sociedade Geológica dos Estados Unidos e com Medalha Wollaston de 1971 pela Sociedade Geológica de Londres. (pt) Ralph Alger Bagnold, född 3 april 1896, död 28 maj 1990, var en brittisk ingenjör och brigadgeneral. Han var grundare och första befälhavare för brittiska arméns Long Range Desert Group under andra världskriget, som opererade långt bakom fiendens linjer i ökenkriget mot axelmakterna. Bagnold deltog i första världskriget, och studerade därefter till ingenjör på Cambridge University. Bagnold återvände till armén efter studierna och skickades först till Irland och därefter till Egypten, där han började sina ökenexpeditioner. Bagnold blev en av pionjärerna i att utforska öken med hjälp av motorfordon. Under 1930-talet genomförde han flera expeditioner med bil genom öknar i Nordafrika, bland annat den första bekräftade genomfarten med bil i öst-västlig riktning av den Libyska öknen (1932). Under sina expeditioner i öknen utvecklade han tekniker och anordningar för förbättrade ökenfärder med bil. Hans bok The Physics of Blown Sand and Desert Dunes (1941), lade grunden för forskning kring sandens egenskaper satt i rörelse av vindar. Boken har använts av NASA för studier av sanddyner på Mars. Författaren var hans syster. (sv) |
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| dbp:name | Ralph Alger Bagnold (en) |
| dbp:parents | Col. Arthur Henry Bagnold, CB, CMG and Ethel Alger . (en) |
| dbp:spouse | Dorothy Alice Bagnold (en) |
| dbp:title | Commander, Long Range Desert Group (en) |
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| rdfs:comment | Le général de brigade Ralph Alger Bagnold, membre de la Royal Society, officier de l’ordre de l’Empire britanniquené le 3 avril 1896 et décédé le 28 mai 1990 fut le fondateur du Long Range Desert Group durant la Seconde Guerre mondiale, un pionnier de l’exploration du désert avec la première traversée est-ouest du désert libyque en 1932. Géologue, il posa les fondations de l’étude des processus éoliens dans son ouvrage de référence The Physics of Blown Sand & Desert Dunes, publié pour la première fois en 1941. L’agence spatiale américaine fit appel à lui pour étudier les dunes de sable martiennes et un champ dunaire porte son nom en hommage. (fr) Ralph Alger Bagnold, FRS (* 3. April 1896 in Plymouth, England; † 28. Mai 1990), war der Gründer und erste Kommandeur der Long Range Desert Group der British Army im Zweiten Weltkrieg. Er wird wegen seiner Aktivitäten in den 1930er Jahren als Pionier der Wüstenforschung betrachtet. Diese umfassen unter anderem die erste Ost-West-Durchquerung der Libyschen Wüste durch einen Europäer. Er war nicht nur Teilnehmer des Zweiten Weltkriegs, sondern auch ein Veteran des Ersten Weltkriegs. (de) Brigadier Ralph Alger Bagnold, OBE, FRS, (3 April 1896 – 28 May 1990) was an English 20th-century desert explorer, geologist and soldier. In 1932, he staged the first recorded East-to-West crossing of the Libyan Desert. His work in the field of Aeolian processes was the basis for the book The Physics of Blown Sand and Desert Dunes, establishing the discipline of aeolian geomorphology, combining field work observations, experiments and physical equations. His work has been used by United States' space agency NASA in its study of the terrain of the planet Mars, the Bagnold Dunes on Mars' surface being named after him by the organisation. (en) Ralph Alger Bagnold (3 de abril de 1896 (126 anos) – 28 de maio de 1990) foi um militar, explorador e geólogo britânico. Durante a Segunda Guerra Mundial, Bagnold foi o fundador e o primeiro comandante de um agrupamento militar de deserto ("Long Range Desert Group"), organizado pelo Exército Britânico, para efetuar invasões atrás das linhas inimigas através do deserto da Líbia. É creditado a ele o desenvolvimento de uma bússola solar que não é afetada pelos grandes depósitos de minérios de ferro encontrados no deserto ou pelos veículos metálicos próximos, como ocorre com a bússola magnética. (pt) Ralph Alger Bagnold, född 3 april 1896, död 28 maj 1990, var en brittisk ingenjör och brigadgeneral. Han var grundare och första befälhavare för brittiska arméns Long Range Desert Group under andra världskriget, som opererade långt bakom fiendens linjer i ökenkriget mot axelmakterna. Under sina expeditioner i öknen utvecklade han tekniker och anordningar för förbättrade ökenfärder med bil. Hans bok The Physics of Blown Sand and Desert Dunes (1941), lade grunden för forskning kring sandens egenskaper satt i rörelse av vindar. Boken har använts av NASA för studier av sanddyner på Mars. (sv) |
| rdfs:label | Ralph Alger Bagnold (de) Ralph A. Bagnold (fr) Ralph Bagnold (en) Ralph Alger Bagnold (pt) Ralph Alger Bagnold (sv) |
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