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Edgar Wedekind
Edgar Leon Waldemar Otto Wedekind (31 January 1870 - 22 October 1938) was a German chemist and teacher at Hannoversch-Münden. He was one of the signatories for the '' Vow of allegiance of the Professors of the German Universities and High-Schools to Adolf Hitler and the National Socialistic State'' (1933). Wedekind was born in Altona (near Hamburg) and studied chemistry, receiving a doctorate from Munich in 1895 for studies on Tetrazolium under Hans von Pechmann, He received a habilitation from the University of Leipzig in 1899. He then taught chemistry at the Universities of Tübingen, Strasbourg, Frankfurt, Göttingen as well as at the forestry university Hannoversch-Münden and from 1938, he was a member of the Erfurt academy. He worked with the mycologist Richard Falck and analyzed the antibiotic ''Sparassol''. He defended Falck against anti-semitism but was, in November 1933, a signatory to the ''Bekenntnis der Professoren an den Universitäten und Hochschulen zu Adolf Hit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vow Of Allegiance Of The Professors Of The German Universities And High-Schools To Adolf Hitler And The National Socialistic State
Bekenntnis der Professoren an den Universitäten und Hochschulen zu Adolf Hitler und dem nationalsozialistischen Staat officially translated into English as the Vow of allegiance of the Professors of the German Universities and High-Schools to Adolf Hitler and the National Socialistic State was a document presented on 11 November 1933 at the Albert Hall in Leipzig. It had statements in German, English, Italian, and Spanish by selected German academics and included an appendix of signatories. The purge to remove academics and civil servants with Jewish ancestry began with a law being passed on 7 April 1933. This document was signed by those that remained in support of Nazi Germany. Martin Heidegger in his inaugural lecture in May 1933 as ''Rektor'', and who was later in October appointed "Führer of the university", said (translated): "The much celebrated "academic freedom" is being banished from the German university; for this freedom was not genuine, since it was only negativ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Altona, Hamburg
Altona (), also called Hamburg-Altona, is the westernmost urban borough (''Bezirk'') of the German city state of Hamburg, on the right bank of the Elbe river. From 1640 to 1864, Altona was under the administration of the Danish monarchy. Altona was an independent borough until 1937. In 2016 the population was 270,263. History Altona was founded in 1535 as a village of fishermen in what was then Holstein-Pinneberg. In 1640, Altona came under Danish rule as part of Holstein-Glückstadt, and in 1664 was granted municipal rights by the Danish King Frederik III, who then ruled in personal union as Duke of Holstein. Altona was one of the Danish monarchy's most important harbor towns. The railroad from Altona to Kiel, the Hamburg-Altona–Kiel railway ( da, link=no, Christian VIII Østersø Jernbane), was opened in 1844. Because of severe restrictions on the number of Jews allowed to live in Hamburg until 1864 (with the exception of 1811–1815), a major Jewish community develop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tetrazolium
The formazans are compounds of the general formula -N=N-C(R')=N-NH-R" formally derivatives of formazan 2NN=CHN=NH unknown in free form. Formazan dyes are artificial chromogenic products obtained by reduction of tetrazolium salts by dehydrogenases and reductases. They have a variety of colors from dark blue to deep red to orange, depending on the original tetrazolium salt used as the substrate for the reaction. Structure and reactivity Formazans are intensely colorful compounds characterized by the following structure: N=N-C(R)=N-NH- and are closely related to azo (−N=N−) dyes. Their structure was first defined in 1892, by von Pechmann and by Bamberger and Wheelwright independently. Their deep colour and redox chemistry derive from their nitrogen-rich backbone. Formazans have a high tautomeric and conformational flexibility. Due to the two alternating double bonds in the backbone, formazans can exist in four possible isomeric forms: syn, s-cis (closed form); syn, s-tran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hans Von Pechmann
Hans von Pechmann (1 April 1850 – 19 April 1902) was a German chemist, renowned for his discovery of diazomethane in 1894. Pechmann condensation and Pechmann pyrazole synthesis. He also first prepared 1,2-diketones (e.g., diacetyl), acetonedicarboxylic acid, methylglyoxal and diphenyltriketone; established the symmetrical structure of anthraquinone. Von Pechmann also produced the first example of solid polyethylene serendipitously in 1898, via the decomposition of diazomethane. He was born in Nürnberg. After studying with Heinrich Limpricht at the University of Greifswald he became professor at the University of Munich till 1895. He was professor at the University of Tübingen from 1895 until his death. He killed himself by taking cyanide, aged 52. Works * ''Volhard's Anleitung zur Qualitativen chemischen Analyse'' . Chemisches Labolatorium des Staates, München 9th & 10th ed. 190Digital editionby the University and State Library Düsseldorf * ''Anleitung zur quantitativen Anal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leipzig University
Leipzig University (german: Universität Leipzig), in Leipzig in Saxony, Germany, is one of the world's oldest universities and the second-oldest university (by consecutive years of existence) in Germany. The university was founded on 2 December 1409 by Frederick I, Elector of Saxony and his brother William II, Margrave of Meissen, and originally comprised the four scholastic faculties. Since its inception, the university has engaged in teaching and research for over 600 years without interruption. Famous alumni include Gottfried Wilhelm von Leibniz, Johann Wolfgang von Goethe, Leopold von Ranke, Friedrich Nietzsche, Robert Schumann, Richard Wagner, Tycho Brahe, Georgius Agricola, Angela Merkel and ten Nobel laureates associated with the university. History Founding and development until 1900 The university was modelled on the University of Prague, from which the German-speaking faculty members withdrew to Leipzig after the Jan Hus crisis and the Decree of Kutná Hora. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Richard Falck
Richard Falck (7 May 1873 – 1 January 1955) was a German-American botanist and mycologist, who worked as a professor of mycology at the forest academy in Hannoversch Münden before he fled Nazi Germany and the persecution of Jews to finally settle in the United States of America. Falck was a specialist on fungi and on the preservation of timber from fungal damage. Life and work Falck was born in Landeck in Westpreußen (West Prussia) to Julius and Rosa née Baruch. Richard's father was in the dye business. Richard was the oldest and had two brothers and sisters. His brother Georg later became an architect of repute; his brother Eduard who ran a mushroom business was murdered in Auschwitz; one sister survived the Holocaust. Little is known of Richard's early years but he lived in Ledyczek until the age of 16, went to Progymnasium in Debrzno, trained as a pharmacist, and in 1899 he passed the examination of food chemists at Göttingen. In 1902 he began his mycological studies u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Antisemitism
Antisemitism (also spelled anti-semitism or anti-Semitism) is hostility to, prejudice towards, or discrimination against Jews. A person who holds such positions is called an antisemite. Antisemitism is considered to be a form of racism. Antisemitism has historically been manifested in many ways, ranging from expressions of hatred of or discrimination against individual Jews to organized pogroms by mobs, police forces, or genocide. Although the term did not come into common usage until the 19th century, it is also applied to previous and later anti-Jewish incidents. Notable instances of persecution include the Rhineland massacres preceding the First Crusade in 1096, the Edict of Expulsion from England in 1290, the 1348–1351 persecution of Jews during the Black Death, the massacres of Spanish Jews in 1391, the persecutions of the Spanish Inquisition, the expulsion from Spain in 1492, the Cossack massacres in Ukraine from 1648 to 1657, various anti-Jewish pogroms in the Russ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hermann Staudinger
Hermann Staudinger (; 23 March 1881 – 8 September 1965) was a German organic chemist who demonstrated the existence of macromolecules, which he characterized as polymers. For this work he received the 1953 Nobel Prize in Chemistry. He is also known for his discovery of ketenes and of the Staudinger reaction. Staudinger, together with Leopold Ružička, also elucidated the molecular structures of pyrethrin I and II in the 1920s, enabling the development of pyrethroid insecticides in the 1960s and 1970s. Early work Staudinger was born in 1881 in Worms. Staudinger, who initially wanted to become a botanist, studied chemistry at the University of Halle, at the TH Darmstadt and at the LMU Munich. He received his "Verbandsexamen" (comparable to Master's degree) from TH Darmstadt. After receiving his Ph.D. from the University of Halle in 1903, Staudinger qualified as an academic lecturer at the University of Strasbourg in 1907. It was here that he discovered the ketenes, a family ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
People From Hann
A person ( : people) is a being that has certain capacities or attributes such as reason, morality, consciousness or self-consciousness, and being a part of a culturally established form of social relations such as kinship, ownership of property, or legal responsibility. The defining features of personhood and, consequently, what makes a person count as a person, differ widely among cultures and contexts. In addition to the question of personhood, of what makes a being count as a person to begin with, there are further questions about personal identity and self: both about what makes any particular person that particular person instead of another, and about what makes a person at one time the same person as they were or will be at another time despite any intervening changes. The plural form "people" is often used to refer to an entire nation or ethnic group (as in "a people"), and this was the original meaning of the word; it subsequently acquired its use as a plural form of per ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1870 Births
Year 187 ( CLXXXVII) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Quintius and Aelianus (or, less frequently, year 940 '' Ab urbe condita''). The denomination 187 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * Septimius Severus marries Julia Domna (age 17), a Syrian princess, at Lugdunum (modern-day Lyon). She is the youngest daughter of high-priest Julius Bassianus – a descendant of the Royal House of Emesa. Her elder sister is Julia Maesa. * Clodius Albinus defeats the Chatti, a highly organized German tribe that controlled the area that includes the Black Forest. By topic Religion * Olympianus succeeds Pertinax as bishop of Byzantium (until 198). Births * Cao Pi, Chinese emperor of the Cao Wei state (d. 226) * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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