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Robert Von Lieben
Robert von Lieben (September 5, 1878, in Vienna – February 20, 1913, in Vienna) was an Austrian entrepreneur, and self-taught physicist and inventor. Lieben and his associates Eugen Reisz and Siegmund Strauss invented and produced a gas-filled triode – the first thermionic valve with a control grid that was designed specifically for amplification rather than demodulation of signals, and is a distant ancestor of the thyratron. After Lieben's death, the "Lieben valve", which is also known in English as the "Lieben-Reisz valve" and in German as the "LRS-Relais" (Lieben-Reisz-Strauss relay), was used in the world's first continuous wave radio frequency generator designed for radio telephony. Biography Robert von Lieben was the fourth of five children born into a wealthy Viennese Jewish family who were related to the Auspitz, Gomperz, Todesco and Wertheimstein clans. His father Leopold von Lieben managed a family-owned bank and chaired the Vienna Trade Chamber; ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Von Lieben
Robert von Lieben (September 5, 1878, in Vienna – February 20, 1913, in Vienna) was an Austrian entrepreneur, and self-taught physicist and inventor. Lieben and his associates Eugen Reisz and Siegmund Strauss invented and produced a gas-filled triode – the first thermionic valve with a control grid that was designed specifically for amplification rather than demodulation of signals, and is a distant ancestor of the thyratron. After Lieben's death, the "Lieben valve", which is also known in English as the "Lieben-Reisz valve" and in German as the "LRS-Relais" (Lieben-Reisz-Strauss relay), was used in the world's first continuous wave radio frequency generator designed for radio telephony. Biography Robert von Lieben was the fourth of five children born into a wealthy Viennese Jewish family who were related to the Auspitz, Gomperz, Todesco and Wertheimstein clans. His father Leopold von Lieben managed a family-owned bank and chaired the Vienna Trade Chamber; ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abitur
''Abitur'' (), often shortened colloquially to ''Abi'', is a qualification granted at the end of secondary education in Germany. It is conferred on students who pass their final exams at the end of ISCED 3, usually after twelve or thirteen years of schooling (see also, for Germany, ''Abitur'' after twelve years). In German, the term has roots in the archaic word , which in turn was derived from the Latin (future active participle of , thus "someone who is going to leave"). As a matriculation examination, ''Abitur'' can be compared to A levels, the ''Matura'' or the International Baccalaureate Diploma, which are all ranked as level 4 in the European Qualifications Framework. In Germany Overview The ("certificate of general qualification for university entrance"), often referred to as ("''Abitur'' certificate"), issued after candidates have passed their final exams and have had appropriate grades in both the last and second last school year, is the document which contains t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Experiment
An experiment is a procedure carried out to support or refute a hypothesis, or determine the efficacy or likelihood of something previously untried. Experiments provide insight into Causality, cause-and-effect by demonstrating what outcome occurs when a particular factor is manipulated. Experiments vary greatly in goal and scale but always rely on repeatable procedure and logical analysis of the results. There also exist natural experiment, natural experimental studies. A child may carry out basic experiments to understand how things fall to the ground, while teams of scientists may take years of systematic investigation to advance their understanding of a phenomenon. Experiments and other types of hands-on activities are very important to student learning in the science classroom. Experiments can raise test scores and help a student become more engaged and interested in the material they are learning, especially when used over time. Experiments can vary from personal and in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Realschule
''Realschule'' () is a type of secondary school in Germany, Switzerland and Liechtenstein. It has also existed in Croatia (''realna gimnazija''), the Austrian Empire, the German Empire, Denmark and Norway (''realskole''), Sweden (''realskola''), Finland (''reaalikoulu''), Hungary (''reáliskola''), Latvia (''reālskola''), Slovenia (''realka''), Serbia (''реалка''), and the Russian Empire (''реальное училище''). Germany Situation of the school In the German secondary school system, ''Realschule'' is ranked between Hauptschule (lowest) and Gymnasium (highest). After completing the ''Realschule'', good students are allowed to attend a professional Gymnasium or a general-education Gymnasium. They can also attend a ''Berufsschule'' or do an apprenticeship. In most states of Germany, students start the ''Realschule'' at the age of ten or eleven and typically finish school at the age of 16–17. In some states, ''Realschulen'' have recently been replaced by ''Obe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gymnasium (school)
''Gymnasium'' (and variations of the word) is a term in various European languages for a secondary school that prepares students for higher education at a university. It is comparable to the US English term '' preparatory high school''. Before the 20th century, the gymnasium system was a widespread feature of educational systems throughout many European countries. The word (), from Greek () 'naked' or 'nude', was first used in Ancient Greece, in the sense of a place for both physical and intellectual education of young men. The latter meaning of a place of intellectual education persisted in many European languages (including Albanian, Bulgarian, Estonian, Greek, German, Hungarian, the Scandinavian languages, Dutch, Polish, Czech, Serbo-Croatian, Macedonian, Slovak, Slovenian and Russian), whereas in other languages, like English (''gymnasium'', ''gym'') and Spanish (''gimnasio''), the former meaning of a place for physical education was retained. School structure Be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Franz Brentano
Franz Clemens Honoratus Hermann Josef Brentano (; ; 16 January 1838 – 17 March 1917) was an influential German philosopher, psychologist, and former Catholic priest (withdrawn in 1873 due to the definition of papal infallibility in matters of Faith) whose work strongly influenced not only students Edmund Husserl, Sigmund Freud, Tomáš Masaryk, Rudolf Steiner, Alexius Meinong, Carl Stumpf, Anton Marty, Kazimierz Twardowski, and Christian von Ehrenfels, but many others whose work would follow and make use of his original ideas and concepts. Life Brentano was born at , near Boppard. He was son of Christian Brentano, brother of Lujo Brentano, and paternal nephew of Clemens Brentano and Bettina von Arnim, and of Gunda (née Brentano) and Friedrich von Savigny. He studied philosophy at the universities of Munich, Würzburg, Berlin (with Adolf Trendelenburg) and Münster. He had a special interest in Aristotle and scholastic philosophy. He wrote his dissertation in 1862 at Tübingen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Adolf Lieben
Adolf Lieben (3 December 1836 – 6 June 1914) was an Austrian Jewish chemist. He was born in Vienna the son of Ignatz Lieben. He studied at the University of Vienna, University of Heidelberg (Ph.D. 1856 with Robert Wilhelm Bunsen), and Paris, and subsequently held the positions of privat-docent at the University of Vienna (1861), and professor in the universities of Palermo (1863), Turin (1867), and Prague (1871). From 1875 until his death he held the chair of general and pharmacological chemistry at the University of Vienna, and is a member of the Vienna Academy of Sciences. Publications Lieben has published many essays in '' Liebig's Annalen der Chemie'': *"Ueber die Einwirkung schwacher Affinitäten auf Aldehyde," 1861; *"Ueber das Iodbenzol," 1869; *"Ueber festes Benzoylchlorid," 1875; etc., *"Sitzungsberichte den Kaiserlichen Akademie der Wissenschaften in Wien" ("Untersuchungen über Milchzucker," "Einwirkung von Cyangas auf Aldehyde," "Ueber den Formaldehyd und desse ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rudolf Auspitz
Rudolf Auspitz (Vienna en, Viennese , iso_code = AT-9 , registration_plate = W , postal_code_type = Postal code , postal_code = , timezone = CET , utc_offset = +1 , timezone_DST ..., 7 July 1837 - Vienna, 10 March 1906) was an Austrian industrialist, economist, politician, and banker. He was the father of artist Josefine Winter (1873-1943) In 1874, together with his cousins, the siblings Leopold, Adolf, Richard, Ida and Helene Lieben, Auspitz purchased the property Universitätsring 4 / Löwelbastei 22 / Oppoltzergasse 6, built by the Wiener Baugesellschaft, References 1837 births 1906 deaths Politicians from Vienna Jewish Austrian politicians category:Austro-Hungarian Jews Constitutional Party (Austria) politicians Members of the Austrian House of Deputies (1873–1879) Members of the Austrian House of Deputies (1879–1885) Members of the Austrian House of Deputies (188 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edmund Husserl
, thesis1_title = Beiträge zur Variationsrechnung (Contributions to the Calculus of Variations) , thesis1_url = https://fedora.phaidra.univie.ac.at/fedora/get/o:58535/bdef:Book/view , thesis1_year = 1883 , thesis2_title = Über den Begriff der Zahl (On the Concept of Number) , thesis2_url = https://www.freidok.uni-freiburg.de/data/5870 , thesis2_year = 1887 , doctoral_advisor = Leo Königsberger (PhD advisor)Carl Stumpf (Dr. phil. hab. advisor) , academic_advisors = Franz Brentano , doctoral_students = Edith SteinRoman Ingarden , birth_name=Edmund Gustav Albrecht Husserl Edmund Gustav Albrecht Husserl ( , , ; 8 April 1859 – 27 April 1938) was a German philosopher and mathematician who established the school of phenomenology. In his early work, he elaborated critiques of historicism and of psychologism in logic based on analyses of intentionality. In his mature work, he sought to develop a systematic foundational science ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ringstrasse
The Vienna Ring Road (german: Ringstraße, lit. ''ring road'') is a 5.3 km (3.3 mi) circular grand boulevard that serves as a ring road around the historic Innere Stadt (Inner Town) district of Vienna, Austria. The road is located on sites where medieval city fortifications once stood, including high walls and the broad open field ramparts (glacis), criss-crossed by paths that lay before them. It was constructed after the dismantling of the city walls in the mid-19th century. From the 1860s to 1890s, many large public buildings were erected along the in an eclectic historicist style, sometimes called ' ("Ring Road style"), using elements of Classical, Gothic, Renaissance, and Baroque architecture. Because of its architectural beauty and history, the Vienna has been called the " Lord of the Ring Roads" and is designated by UNESCO as part of Vienna's World Heritage Site. History This grand boulevard was built to replace the city walls, which had been built during the 13th ce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Vienna
The University of Vienna (german: Universität Wien) is a public research university located in Vienna, Austria. It was founded by Duke Rudolph IV in 1365 and is the oldest university in the German-speaking world. With its long and rich history, the university has developed into one of the largest universities in Europe, and also one of the most renowned, especially in the Humanities. It is associated with 21 Nobel prize winners and has been the academic home to many scholars of historical as well as of academic importance. History From the Middle Ages to the Enlightenment The university was founded on March 12, 1365, by Rudolf IV, Duke of Austria, hence the name "Alma Mater Rudolphina". After the Charles University in Prague and Jagiellonian University in Kraków, the University of Vienna is the third oldest university in Central Europe and the oldest university in the contemporary German-speaking world; it remains a question of definition as the Charles University in Prague ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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