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Franz Harress
Franz Harress (died circa 1915) was a mathematician and contemporary of Albert Einstein and is best known for his experiment on the propagation of light in a rotating glass device. This experiment sparked an argument between Albert Einstein and Paul Harzer related to the theory of Special Relativity. Harress was a student of Professor Otto Julius Heinrich Knopf at Friedrich-Schiller-Universität Jena in 1912. His dissertation was "Die Geschwindigkeit des Lichtes in bewegten Körpern" ("The speed of light in moving bodies"). His work on the Sagnac effect was analyzed by Max von Laue Max Theodor Felix von Laue (; 9 October 1879 – 24 April 1960) was a German physicist who received the Nobel Prize in Physics in 1914 for his discovery of the diffraction of X-rays by crystals. In addition to his scientific endeavors with cont ... in his 1920 paper "On the Experiment of F. Harress." References {{DEFAULTSORT:Harress, Franz Year of birth missing 1915 deaths 20th-century German ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Albert Einstein
Albert Einstein ( ; ; 14 March 1879 – 18 April 1955) was a German-born theoretical physicist, widely acknowledged to be one of the greatest and most influential physicists of all time. Einstein is best known for developing the theory of relativity, but he also made important contributions to the development of the theory of quantum mechanics. Relativity and quantum mechanics are the two pillars of modern physics. His mass–energy equivalence formula , which arises from relativity theory, has been dubbed "the world's most famous equation". His work is also known for its influence on the philosophy of science. He received the 1921 Nobel Prize in Physics "for his services to theoretical physics, and especially for his discovery of the law of the photoelectric effect", a pivotal step in the development of quantum theory. His intellectual achievements and originality resulted in "Einstein" becoming synonymous with "genius". In 1905, a year sometimes described as his ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paul Harzer
Paul Harzer (1857, Großenhain – 1932) was a German mathematician and astronomer best known for his papers arguing with Albert Einstein regarding the Sagnac effect and its relationship to Special Relativity. Harzer was Professor of Astronomy at the University of Kiel and Director of its observatory. His published article on the experiment of Franz Harress Franz Harress (died circa 1915) was a mathematician and contemporary of Albert Einstein and is best known for his experiment on the propagation of light in a rotating glass device. This experiment sparked an argument between Albert Einstein and Pau ... drew two reply articles from Einstein. References 1857 births 1932 deaths People from Großenhain People from the Kingdom of Saxony German Lutherans 19th-century German astronomers 19th-century German mathematicians 20th-century German mathematicians 20th-century German astronomers University of Kiel alumni {{germany-mathematician-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Special Relativity
In physics, the special theory of relativity, or special relativity for short, is a scientific theory regarding the relationship between space and time. In Albert Einstein's original treatment, the theory is based on two postulates: # The laws of physics are invariant (that is, identical) in all inertial frames of reference (that is, frames of reference with no acceleration). # The speed of light in vacuum is the same for all observers, regardless of the motion of the light source or the observer. Origins and significance Special relativity was originally proposed by Albert Einstein in a paper published on 26 September 1905 titled "On the Electrodynamics of Moving Bodies".Albert Einstein (1905)''Zur Elektrodynamik bewegter Körper'', ''Annalen der Physik'' 17: 891; English translatioOn the Electrodynamics of Moving Bodiesby George Barker Jeffery and Wilfrid Perrett (1923); Another English translation On the Electrodynamics of Moving Bodies by Megh Nad Saha (1920). The incompa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Friedrich Schiller Universität Jena
The University of Jena, officially the Friedrich Schiller University Jena (german: Friedrich-Schiller-Universität Jena, abbreviated FSU, shortened form ''Uni Jena''), is a public research university located in Jena, Thuringia, Germany. The university was established in 1558 and is counted among the ten oldest universities in Germany. It is affiliated with six Nobel Prize winners, most recently in 2000 when Jena graduate Herbert Kroemer won the Nobel Prize for physics. In the 2023 Times Higher Education World University Rankings, the university was awarded 189th place in the world. It was renamed after the poet Friedrich Schiller who was teaching as professor of philosophy when Jena attracted some of the most influential minds at the turn of the 19th century. With Karl Leonhard Reinhold, Johann Gottlieb Fichte, G. W. F. Hegel, F. W. J. Schelling and Friedrich Schlegel on its teaching staff, the university was at the centre of the emergence of German idealism and early Romantic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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