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Hellmuth Stachel
Hellmuth Stachel (born October 6, 1942, in Graz, Austria) is an Austrian mathematician, a professor of geometry at the Technical University of Vienna, who is known due to his contributions to geometry, kinematics and computer-aided design. Biography Stachel was born on October 6, 1942, in Graz to the family of primary school teachers. He graduated from an elementary school in Trofaiach and secondary school (gymnasium) in Leoben. In 1965 he graduated from the University of Graz and Graz University of Technology, obtaining a diploma of a school teacher in “mathematics” and “descriptive geometry.” As a Ph.D. student of Graz University he majored in “mathematics, astronomy and philosophy.” His doctoral advisor was Professor Fritz Hohenberg. Hellmuth Stachel obtained his doctorate in 1969 from Graz University and passed thought habilitation in 1971 at the Technical University of Graz. In 1980 he moved to the Vienna University of Technology. Stachel held several visi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Graz
Graz () is the capital of the Austrian Federal states of Austria, federal state of Styria and the List of cities and towns in Austria, second-largest city in Austria, after Vienna. On 1 January 2025, Graz had a population of 306,068 (343,461 including secondary residence). In 2023, the population of the Graz larger urban zone (LUZ) stood at 660,238. Graz is known as a city of higher education, with four colleges and four universities. Combined, the city is home to more than 60,000 students. Its historic centre (''Altstadt'') is one of the best-preserved city centres in Central Europe. In 1999, the city's historic centre was added to the UNESCO list of World Heritage Sites and in 2010 the designation was expanded to include Eggenberg Palace, Graz, Eggenberg Palace () on the western edge of the city. Graz was designated the Cultural Capital of Europe in 2003 and became a City of Culinary Delights in 2008. In addition, the city is recognized as a "Design Cities (UNESCO), Design City ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doctorate
A doctorate (from Latin ''doctor'', meaning "teacher") or doctoral degree is a postgraduate academic degree awarded by universities and some other educational institutions, derived from the ancient formalism '' licentia docendi'' ("licence to teach"). In most countries, a research degree qualifies the holder to teach at university level in the degree's field or work in a specific profession. There are a number of doctoral degrees; the most common is the Doctor of Philosophy (PhD), awarded in many different fields, ranging from the humanities to scientific disciplines. Many universities also award honorary doctorates to individuals deemed worthy of special recognition, either for scholarly work or other contributions to the university or society. History Middle Ages The term ''doctor'' derives from Latin, meaning "teacher" or "instructor". The doctorate (Latin: ''doctoratus'') appeared in medieval Europe as a license to teach Latin (''licentia docendi'') at a university. Its ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hellmuth Stachel Delivering A Lecture At TU Wien
Hellmuth is both a masculine German given name and a surname. Notable people with the name include: Given name: * Hellmuth Heye (1895–1970), German admiral and politician * Hellmuth Hirth (1886–1938), German engineer who founded engine manufacturing companies * Hellmuth Karasek (1934–2015), German journalist, literary critic, novelist and author * Hellmuth Mäder (1908–1984), German general * Hellmuth von Mücke (1881–1957), German Navy officer, pacifist writer * Hellmuth Reymann (1892–1988), German Army officer * Hellmuth Walter (1900–1980), German engineer who pioneered research into rocket engines and gas turbines * Hellmuth Wolff (organ builder) (1937–2013), Canadian organ builder Surname: * Isaac Hellmuth (1819–1901), founder of Huron University College and the University of Western Ontario * Otto Hellmuth (1896–1968), member of the Nazi party * George Francis Hellmuth (1907–1999), American architect based in St. Louis, Missouri * Phil Hellmuth (born 1964 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dresden University Of Technology
TU Dresden (for , abbreviated as TUD), also as the Dresden University of Technology, is a public research university in Dresden, Germany. It is the largest institute of higher education in the city of Dresden, the largest university in Saxony and one of the 10 largest universities in Germany with 32,389 students . The name Technische Universität Dresden has only been used since 1961; the history of the university, however, goes back nearly 200 years to 1828. This makes it one of the oldest colleges of technology in Germany, and one of the country's oldest universities, which in German today refers to institutes of higher education that cover the entire curriculum. The university is a member of TU9, a consortium of the nine leading German Institutes of Technology. The university is one of eleven German universities which succeeded in the Excellence Initiative in 2012, thus getting the title of a "University of Excellence". The TU Dresden succeeded in all three rounds of the Ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Austrian Academy Of Sciences
The Austrian Academy of Sciences (; ÖAW) is a legal entity under the special protection of the Republic of Austria. According to the statutes of the Academy its mission is to promote the sciences and humanities in every respect and in every field, particularly in fundamental research. History In 1713, Gottfried Wilhelm Leibniz suggested to establish an Academy, inspired by the Royal Society and the French Academy of Sciences. The "Kaiserliche Akademie der Wissenschaften in Wien" was finally established by Imperial Patent on 14 May 1847. The academy soon began extensive research. In the humanities the academy started with researching and publishing important historical sources of Austria. Research in natural science also covered a wide variety of topics. The 1921 federal law guaranteed the legal basis of the academy in the newly founded First Austrian Republic. From the mid-1960s onwards it became the country's leading institution in the field of non-university basic research. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyperbolic Geometry
In mathematics, hyperbolic geometry (also called Lobachevskian geometry or János Bolyai, Bolyai–Nikolai Lobachevsky, Lobachevskian geometry) is a non-Euclidean geometry. The parallel postulate of Euclidean geometry is replaced with: :For any given line ''R'' and point ''P'' not on ''R'', in the plane containing both line ''R'' and point ''P'' there are at least two distinct lines through ''P'' that do not intersect ''R''. (Compare the above with Playfair's axiom, the modern version of Euclid's parallel postulate.) The hyperbolic plane is a plane (mathematics), plane where every point is a saddle point. Hyperbolic plane geometry is also the geometry of pseudosphere, pseudospherical surfaces, surfaces with a constant negative Gaussian curvature. Saddle surfaces have negative Gaussian curvature in at least some regions, where they local property, locally resemble the hyperbolic plane. The hyperboloid model of hyperbolic geometry provides a representation of event (relativity ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flexible Polyhedron
In geometry, a flexible polyhedron is a polyhedral surface without any boundary edges, whose shape can be continuously changed while keeping the shapes of all of its faces unchanged. The Cauchy's theorem (geometry), Cauchy rigidity theorem shows that in dimension 3 such a polyhedron cannot be convex set, convex (this is also true in higher dimensions). Examples The first examples of flexible polyhedra, now called Bricard octahedron, Bricard octahedra, were discovered by . They are self-intersecting surfaces isometry, isometric to an octahedron. The first example of a flexible non-self-intersecting surface in \mathbb^3, the Connelly sphere, was discovered by . Steffen's polyhedron is another non-self-intersecting flexible polyhedron derived from Bricard's octahedra. Bellows conjecture In the late 1970s Connelly and D. Sullivan formulated the bellows conjecture stating that the volume of a flexible polyhedron is invariant (mathematics), invariant under flexing. This c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Computer Aided Design
Computer-aided design (CAD) is the use of computers (or ) to aid in the creation, modification, analysis, or optimization of a design. This software is used to increase the productivity of the designer, improve the quality of design, improve communications through documentation, and to create a database for manufacturing. Designs made through CAD software help protect products and inventions when used in patent applications. CAD output is often in the form of electronic files for print, machining, or other manufacturing operations. The terms computer-aided drafting (CAD) and computer-aided design and drafting (CADD) are also used. Its use in designing electronic systems is known as ''electronic design automation'' (''EDA''). In mechanical design it is known as ''mechanical design automation'' (''MDA''), which includes the process of creating a technical drawing with the use of computer software. CAD software for mechanical design uses either vector-based graphics to depict t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shanghai
Shanghai, Shanghainese: , Standard Chinese pronunciation: is a direct-administered municipality and the most populous urban area in China. The city is located on the Chinese shoreline on the southern estuary of the Yangtze River, with the Huangpu River flowing through it. The population of the city proper is the List of largest cities, second largest in the world after Chongqing, with around 24.87 million inhabitants in 2023, while the urban area is the List of cities in China by population, most populous in China, with 29.87 million residents. As of 2022, the Greater Shanghai metropolitan area was estimated to produce a gross metropolitan product (GDP (nominal), nominal) of nearly 13 trillion Renminbi, RMB ($1.9 trillion). Shanghai is one of the world's major centers for finance, #Economy, business and economics, research, science and technology, manufacturing, transportation, List of tourist attractions in Shanghai, tourism, and Culture of Shanghai, culture. The Port of Sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tongji University
Tongji University is a public university located in Shanghai, China. It is affiliated with the Ministry of Education of China. The university is part of Project 211, Project 985, and the Double First-Class Construction. Tongji is one of the most prestigious Universities in China, with its engineering and architecture programs in particular consistently ranking among the top in the world. Established in 1907 by German physicians in Shanghai, the university now has a faculty of more than 2,815 scholars, including 27 members from the Chinese Academy of Sciences and the Chinese Academy of Engineering. Currently, Tongji University owns 29 colleges, 11 affiliated hospitals, and 7 affiliated primary and secondary schools. History The history of Tongji University can be traced back to 1907 when the German Medical School for the Chinese () in Shanghai was founded by the German government together with the German physicians Erich Paulun, Oscar von Schab and Paul Krieg. The school ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guangzhou
Guangzhou, Chinese postal romanization, previously romanized as Canton or Kwangchow, is the Capital city, capital and largest city of Guangdong Provinces of China, province in South China, southern China. Located on the Pearl River about northwest of Hong Kong and north of Macau, Guangzhou has a history of over 2,200 years and was a major terminus of the Silk Road. The port of Guangzhou serves as a transportation hub for China's fourth largest city and surrounding areas, including Hong Kong. Guangzhou was captured by the United Kingdom, British during the First Opium War and no longer enjoyed a monopoly after the war; consequently it lost trade to other ports such as Hong Kong and Shanghai, but continued to serve as a major entrepôt. Following the Second Battle of Chuenpi in 1841, the Treaty of Nanking was signed between Robert Peel, Sir Robert Peel on behalf of Queen Victoria and Lin Zexu on behalf of Daoguang Emperor, Emperor Xuanzong and ceded British Hong Kong, Hong Kon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South China University Of Technology
The South China University of Technology (SCUT) is a public university in Guangzhou, Guangdong, China. It is affiliated with the Ministry of Education (China), Ministry of Education and co-sponsored with the Guangdong Provincial People's Government. The university is part of Project 211, Project 985, and the Double First-Class Construction. History * Formerly known as the South China Institute of Technology (), it was established in 1952, through a reorganization process that unified the engineering schools and departments of major universities from five provinces in Central China, Central and Northern and southern China, Southern China, including the former National Sun Yat-sen University, Lingnan University (Guangzhou), Lingnan University, Hunan University, Guangxi University, South China Joint University, and four others. * In 1960, it was selected as one of the National Key Universities, under the direct administration of the Chinese Ministry of Education. * The university ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
