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Politica de confidentialitate |
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• domnisoara hus • legume • istoria unui galban • metanol • recapitulare • profitul • caract • comentariu liric • radiolocatia • praslea cel voinic si merele da aur | |
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Alfred Nobel | ||||||
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y1x23xs Alfred Nobel was a Swedish chemist and a very skillful entrepreneur and business man, born in Stockholm on October 21, 1833. His father was Immanuel Nobel, an engineer and inventor who built bridges and buildings in Stockholm. After a bankruptcy, Immanuel left his family in Stockholm in 1837 to start up a new business in St. Petersburg, Russia. Immanuel's business was to manufacture submarine mines and torpedoes that he had designed for the Russian government. In 1842 the rest of the family also moved to Russia. Immanuel wanted his four sons to get involved in his business, and put them all through education with private teachers. Alfred was a good student who early picked up the interest for chemistry. His father sent him on to further education in the United States between the years 1850-1852; during this period he also visited Paris and got in contact with nitroglycerin for the first time, an explosive liquid which was first made by an Italian scientist named Ascanio Sobrero in 1847. In 1852 Alfred went back to Russia to work with his father as the Russian Navy had placed big orders for the Crimean War (1853-1856). After the war ended and conditions changed, Immanuel Nobel experienced another bankruptcy and moved back to Stockholm with his family. Two of his sons remained in Russia and developed very successful careers in the oil industry. Back in Stockholm, Alfred, his father and Alfred's younger brother Emil started a laboratory in 1859 where they started to do experiments with the explosive liquid nitroglycerin. Alfred saw that the advantages nitroglycerin had over gun powder could be used in a commercial and technical way. Over the years they had several explosions in the laboratory; a big one in 1864 killed the younger brother Emil and several other people. The city of Stockholm enforced laws that experiments with explosives could not be made within the city limits of Stockholm. |
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