Adventures In CyberSound: Plücker, Julius In 1859 whilst establishing an important principle for the future of electronics,the German mathematician and physicist julius plucker discovers that cathode http://www.acmi.net.au/AIC/PLUCKER_BIO.html
Extractions: Source: Eric's Treasure Trove , German mathematician and physicist who specialized in Analytic Geometry . He presented the logical justification for the Duality Principle in geometry, and published a book about geometry entitled Analytisch-geometrische Entwicklungen Neue Geometrie des Raumes . He worked with Hittorf in investigating Vacuum Tubes Source: http://www.astro.virginia.edu/~eww6n/bios/Plucker.html His work on combinatorics considers Steiner type systems. He also introduced the notion of a ruled surface. In 1847 he turned to physics, accepting the chair of physics at Bonn working on magnetism, electronics and atomic physics. He anticipated Kirchhoff and Bunsen in indicating that spectral lines were characteristic for each chemical substance. In 1865 he returned to mathematics and Klein served as his assistant 1866-1888.
American Family Immigration History Center 1915. 27. 10. julius plucker. New York. 1910. 26. 11. julius plucker. 1908. 51 http://www.ellisislandrecords.org/search/matchMore.asp?kind=exact&FNM=&L
Adventures In CyberSound julius plucker ( 1801 1868 ). Source http//www-groups.dcs.st-and.ac.uk/~history/index.htmlMain Index Scientists and Engineers http://www.acmi.net.au/AIC/PLUCKER.html
Plucker, Julius plucker, julius 180168, German mathematician and physicist. He became professorof mathematics (1836) and of physics (1847) at the Univ. plucker, julius. http://pt.slider.com/enc/42000/Plucker_Julius.htm
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Encyclopedia4U - Julius Plücker - Encyclopedia Article julius Plücker. julius Plücker (18011866) was a German mathematicianwho vastly extended the study of Lamé curves. In projective http://www.encyclopedia4u.com/j/julius-plucker.html
Extractions: ENCYCLOPEDIA U com Lists of articles by category ... SEARCH : Julius Plücker ) was a German mathematician who vastly extended the study of Lamé curves. In projective geometry , Plücker co-ordinates refer to a set of homogeneous co-ordinates introduced initially to embed the set of lines in three dimensions as a quadric in five dimensions. The construction uses 2x2 minor determinants, or equivalently the second exterior power of the underlying vector space of dimension 4. Their study was called line geometry in the nineteenth century. It is now part of the theory of Grassmannians, to which these co-ordinates apply in generality ( k -dimensional subspaces of n -dimensional space).
The Discovery Of The Electron evacuated. A friend of his, the German physicist julius plucker (18011868),used such Geissler tubes for electrical experimentation. http://www.3rd1000.com/history/electrons.htm
Extractions: The Discovery of the Electron Cathode Rays When Leucippus and his disciple Democritus first advanced the notion of atoms, they pictured the atom as the ultimate, indivisible particle. Dalton, over two thousand years later, retained that view. It seemed necessary to suppose the atom to have no internal structure by definition. If the atom would be divided into still smaller entities, then would not those entities be the true atoms? Throughout the nineteenth century this view of the atom as a featureless, structureless, indivisible particle persisted. When the view broke down, it was through a line of experimentation that was not chemical in nature at all. It came about through studies of the electric current. If a concentration of positive electric charge exists in one place and a concentration of negative electric charge exists in another, an electric potential is set up between the two. Under the driving force of this electric potential a current of electricity flows from one point of concentration to the other, this current tending to equalize the concentration. The current flows through some materials more easily than others. For Instance, the various metals are
Plucker julius Plücker was elected to the Royal Society of London in 1855 of this page ishttp//wwwhistory.mcs.st-andrews.ac.uk/history/Mathematicians/plucker.html. http://intranet.woodvillehs.sa.edu.au/pages/resources/maths/History/Plckr.htm
Extractions: Previous (Alphabetically) Next Welcome page was educated at Heidelberg, Berlin and Paris. He was appointed to Bonn in 1829, and became professor of mathematics at Halle in 1834, then at Bonn in 1836. He made important contributions to analytic geometry and physics. He initiated the investigation of geometrical configurations associated with line complexes. In this way of specifying coordinates a point has a linear equation, namely that of all lines through the point while a line has a pair of numbers namely the x and y coordinates of where it cuts the axes. His work on combinatorics considers Steiner type systems. He also introduced the notion of a ruled surface. In 1847 he turned to physics, accepting the chair of physics at Bonn working on magnetism, electronics and atomic physics. He anticipated Kirchhoff and Bunsen in indicating that spectral lines were characteristic for each chemical substance. In 1865 he returned to mathematics and Klein served as his assistant 1866-1868.
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Bibliography Co. 1822. plucker, julius, 18011868, julius pluckers gesammelte wissenschaftlicheAbhandlungen / im Auftrag der Kgl. Gesellschaft http://www.library.cornell.edu/math/bibliography/display.cgi?start=P&
Le Romain Des Mots-croisés. **Mathématiciens Translate this page FERDINAND) NÉ, A, SCHULPFORTA (1790-1868) PASCH (MORITZ) NÉ, A, WROCLAW (1843-1930)plucker (julius) NÉ, A, ELBERFELD (1801-1868) REGIOMONTANUS (JOHANN http://www.mots-croisiste.com/19.html
Extractions: Index général aéroport affluents Centrale nucléaire et hydroélectriques Chefs-Lieux Collines de Rome Communes Compositeurs Constellations Cyclades Déesses Dieux Divinités Écrivains Fleuves Côtier FLeuves des enfers Fleuves Historiens Homme d'état Homme Politiques Lacs Massifs Mathématiciens Noms Peintres Poètes Ports et Ports Fluviaux Rivières Sculteurs Théologiens Torrents Villes MATHEMATICIENS MATHEMATICIENS, ALLEMANDS. ARTIN (EMIL) NÉ, A, VIENNE (1898-1962)
III. EL ELECTRÓN: THOMSON Y MILLIKAN Translate this page Con estos avances, en 1858 el profesor alemán julius plucker estudió la conducciónde electricidad a través de gases a muy baja presión utilizando un tubo http://omega.ilce.edu.mx:3000/sites/ciencia/volumen2/ciencia3/068/htm/sec_6.htm
Extractions: III.1. INTRODUCCIÓN E N EL capítulo anterior vimos cómo, hacia fines del siglo XIX, se logró una descripción unificada de los fenómenos electromagnéticos. Si la luz resulta de la vibración de cargas, la siguiente pregunta a responder es, ¿por qué los átomos emiten luz?, ¿hay algo que vibre dentro de ellos? Como veremos a continuación, la respuesta de la última pregunta es: sí, el electrón. Las primeras evidencias de la existencia de esa partícula son muy antiguas y están asociadas con la electricidad, es decir, con los fenómenos relacionados con el movimiento, acumulación o deficiencia de electrones en la materia. III.2. DESCARGAS A TRAVÉS DE GASES El fenómeno eléctrico más espectacular es el de las descargas entre nubes (los rayos ), que originalmente era asociado al estado de ánimo de algunas deidades; fue Benjamín Franklin el primero en demostrar su naturaleza eléctrica en su famoso experimento con cometas de papel. Sin embargo, los rayos resultaron demasiado esporádicos e incontrolables como para permitir su estudio sistemático. Las descargas eléctricas a través de gases habían sido observadas en el laboratorio por Francis Hauskbee quien, en 1709, reportó la aparición de una luz
Biografia De Plücker, Julius Translate this page Plücker, julius. (Elberfeld, 1801-Bonn, 1868) Matemático y físicoalemán. Fue profesor en la Universidad de Bonn. Llevó a cabo http://www.biografiasyvidas.com/biografia/p/plucker.htm
Extractions: Enlaces (Elberfeld, 1801-Bonn, 1868) Matemático y físico alemán. Fue profesor en la Universidad de Bonn. Llevó a cabo una profunda renovación de la geometría proyectiva desde un enfoque algebraico y mediante una generalización del concepto de coordenada. Estudió los fenómenos producidos por descargas eléctricas en gases enrarecidos y destacó la fluorescencia causada por los rayos catódicos. Inicio Buscador Recomendar sitio
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The History Of The Cathode Ray Tube 1859 German mathematician and physicist, julius plucker experiments with invisiblecathode rays. Cathode rays were first identified by julius plucker. http://inventors.about.com/library/inventors/blcathoderaytube.htm
Extractions: zJs=10 zJs=11 zJs=12 zJs=13 zc(5,'jsc',zJs,9999999,'') About Homework Help Inventors Home ... Industrial Revolution zau(256,152,145,'gob','http://z.about.com/5/ad/go.htm?gs='+gs,''); Famous Inventions Famous Inventors Black Inventors Women Inventors ... Help zau(256,138,125,'el','http://z.about.com/0/ip/417/0.htm','');w(xb+xb); Subscribe to the About Inventors newsletter. Search Inventors The History of the Cathode Ray Tube By Mary Bellis Return to The History of Television CRT and Television Electronic television is based on the development of the cathode ray tube - CRT - which is the picture tube found in modern television sets. A cathode ray tube or CRT is a specialized vacuum tube in which images are produced when an electron beam strikes a phosphorescent surface. Television sets, computers, automated teller machines, video game machines, video cameras, monitors, oscilloscopes and radar displays all contain cathode-ray tubes. Phosphor screens using multiple beams of electrons have allowed CRTs to display millions of colors. The first cathode ray tube scanning device was invented by the German scientist Karl Ferdinand Braun in 1897. Braun introduced a CRT with a fluorescent screen, known as the cathode ray oscilloscope. The screen would emit a visible light when struck by a beam of electrons. In 1907, the Russian scientist Boris Rosing (see
À§´ëÇѼöÇÐÀÚ ¸ñ·Ï Playfair, John Playfair Born 10 March 1748 in Benvie (near Dundee), Scotland Died20 July 1819 in Burntisland, Fife, Scotland plucker, julius Plücker Born http://www.mathnet.or.kr/API/?MIval=people_seek_great&init=P