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Ernst Otto Beckmann
Ernst Otto Beckmann (July 4, 1853 – July 12, 1923) was a German pharmacist and chemist who is remembered for his invention of the Beckmann differential thermometer and for his discovery of the Beckmann rearrangement. Scientific work Ernst Otto Beckmann was born in Solingen, Germany on July 4, 1853, to a family headed by Johannes Friedrich Wilhelm Beckmann, a manufacturer. The elder Beckmann's factory produced mineral dyes, pigments, abrasives, and polishing material, and it was there that the younger Beckmann conducted his early chemical experiments. At the age of 17, Beckmann was persuaded by his father to study pharmacy instead of chemistry, and so in 1870 an apprenticeship was arranged in Elberfeld. However, Beckmann did not enjoy the working conditions and returned home, to his father's disappointment. Told that a chemical career would be difficult if could not handle an apprenticeship in pharmacy, Beckmann then returned to Elberfeld to finish his work. He also worked at p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solingen
Solingen (; li, Solich) is a city in North Rhine-Westphalia, Germany. It is located some 25 km east of Düsseldorf along the northern edge of the region called Bergisches Land, south of the Ruhr area, and, with a 2009 population of 161,366, is after Wuppertal the second-largest city in the Bergisches Land. It is a member of the regional authority of the Rhineland. Solingen is called the "City of Blades", since it has long been renowned for the manufacturing of fine swords, knives, scissors and razors made by famous firms such as WKC, DOVO, Wüsthof, Zwilling J. A. Henckels, Böker, Güde, Hubertus, Diefenthal, Puma, Clauberg, Eickhorn, Linder, Carl Schmidt Sohn, Dreiturm, Herder, and numerous other manufacturers. In medieval times, the swordsmiths of Solingen designed the town's coat of arms, which continues to the present. In the latter part of the 17th century, a group of swordsmiths from Solingen broke their guild oaths by taking their sword-making secrets with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
