61. ThinkQuest : Library : Mathematics History Felix Klein was born in Dusseldorf in 1849. He studied at Bonn, Got tingen,and Berlin, and served as assistant to julius plucker Bonn. http://library.thinkquest.org/22584/temh3043.htm

Index Math Mathematics History An extensive history of mathematics is at your fingertips, from Babylonian cuneiforms to advances in Egyptian geometry, from Mayan numbers to contemporary theories of axiomatical mathematics. You will find it all here. Biographical information about a number of important mathematicians is included at this excellent site. Visit Site 1998 ThinkQuest Internet Challenge Languages English Korean Students Hyun-jin Jae-yun Hwang(Seoul Yo Sang), Kwan-ak Gu, Korea, South Kyung-sun Jae-yun Hwang(Seoul Yo Sang), Kwan-ak Gu, Korea, South So-young Jae-yun Hwang(Seoul Yo Sang), Kwan-ak Gu, Korea, South Coaches Jae-yun Jae-yun Hwang(Seoul Yo Sang), Kwan-ak Gu, Korea, South Jong-hyun Jong-hyun Lee(Seoul Yo Sang), Kwan-ak Gu, Korea, South Dea-won Dea-won Ko (Seoul Yo Sang), Kwan-ak Gu, Korea, South Want to build a ThinkQuest site? The ThinkQuest site above is one of thousands of educational web sites built by students from around the world. Click here to learn how you can build a ThinkQuest site.

62. Topics coordinates. plücker embedding, plücker lines, plücker relations.plucker, julius, plücker s conoid, plücker s equations. plumbing, http://hallmathematics.com/top/cat/p.html

hallmathematics.com :: Topics Topics p-adic norm p-adic number p-circle p-element ... Z Search Top Searches Addition Algebra Analysis Applied ... hallmathematics.com

63. Encyclopedia: Julius Plucker Encyclopedia julius plucker. julius Plücker (18011866) was a Germanmathematician who vastly extended the study of Lamé curves. http://www.nationmaster.com/encyclopedia/Julius-Plucker

Supporter Benefits Signup Login Sources ... Pies Factoid #67 Looking for geniuses? Head straight to Iceland . There are more than 3.5 Nobel Prize Winners for every million Icelanders. Interesting Facts Make your own graph: Hold down Control and click on several. Compare All Top 5 Top 10 Top 20 Top 100 Bottom 100 Bottom 20 Bottom 10 Bottom 5 All (desc) in category: Select Category Agriculture Crime Currency Democracy Economy Education Energy Environment Food Geography Government Health Identification Immigration Internet Labor Language Manufacturing Media Military Mortality People Religion Sports Taxation Transportation Welfare with statistic: view: Correlations Printable graph / table Pie chart Scatterplot with ... * Asterisk means graphable. Added May 21 Mortality stats Multi-users ½ price Catholic stats Top Graphs Richest Most Murderous Most Populous Most Militaristic ... More Stats Categories Agriculture Background Crime Currency ... Welfare Updated: , Encyclopedia : Julius Plucker Sorry, no entry exists for this yet. The Wikipedia article included on this page is licensed under the GFDL Usage implies agreement with terms

64. Mirabilis.ca: April 2003 Archives II Catholic Encyclopedia julius II (Pope, 1503-1513) - Luminarium Pope julius II,Raphael version is perfect if you want use something like plucker or iSilo http://www.mirabilis.ca/archives/2003_04.html

Mirabilis.ca home page about this blog contact Main April 30, 2003 Budapest caves The Budapest Sun has just published an article about the "labyrinthine network of caverns and passageways" in Castle Hill, Budapest: During the middle ages, the existing caverns, formed by the thermal water, were linked up by man-made passages. The population of Castle Hill had started to expand after the Mongol invasion of 1242. King Béla IV ordered the building of the Buda Castle. In Medieval Buda, 300 houses had 285 wells fed by "cave water". King Béla IV chose the hill, partly because of its strategic location, and because its wells and caves provided water and protection for castle dwellers even in times of battle. The inhabitants of the medieval castle region probably chanced upon the caves hidden in the depths of the hill while digging wells, even before the castle was built, as exploration work has revealed cave development from as early as the 11th century. It is possible that the arrangement of houses on the surface was laid out according to the cave cellars below. [full story] Related link: Caves in Budapest - from budapestinfo.hu

65. Video Standards History of video. CRT julius plucker 1859; Oscilloscope - Karl Braun 1897;TV System - Boris Rosening/Campbell Swinton 1907; Broadcast TV - RCA 1939. http://www.udayton.edu/~cps/cps460/notes/displays/video_standards.html

Video Standards Introduction History of video Current standards ATSC Digital Television Standard ... Resources Introduction Most TV monitors use interlace to reduce the flickering effects of the top-to-bottom scan. Interlace generates the image as two seperate fields , one with even-number scan lines and one with odd-number scan lines. Two fields make up one TV frame. A standard American TV broadcast has 525 lines per frame, but only 480 lines or so are visible. About 10% or 45 lines are lost during vertical retrace. It has an aspect ratio of 4:3 (width/height), so if we have square pixels, the frame buffer must be 640 by 480 (307,200 pixels = 300 KB at one byte per pixel). Since each frame is updated at 30 frames/sec, the lines must be displayed at 30*525 = 15.75 KHz. Non-interlaced displays are updated at 50-60 frames/sec. Monitors which can adjust to differing scan rates are called multi-sync monitors. History of video C.R.T. - Julius Plucker 1859 Oscilloscope - Karl Braun 1897 TV System - Boris Rosening/Campbell Swinton 1907 Broadcast TV - RCA 1939 Regular broadcasts were begun using a 340 line, 30 frames/sec system on April 30, 1939 at the opening of the New York World's Fair. The National Broadcasting Company had its broadcast approval rescinded the following year because generally accepted standards were not yet established. The FCC set up the National Television Standards Committee (NTSC) which recommended a 525 line, 30 frames/second system. This standard was adopted in July 1941. The current

66. July 16 Events In History - BrainyHistory 16, 1821 Mary Baker Eddy, founded Christian Science (Science Health) July 16,1801 julius plucker, German mathematician/physicist (plucker formulas) July 16 http://www.brainyhistory.com/daysbirth/birth_july_16.html

BrainyAtlas BrainyDictionary BrainyEncyclopedia BrainyGeography BrainyHistory BrainyQuote BrainyZip History Home July 16 Birthdays in History July 16, 1979 Kim[berly] Rhode, Whittier Calif, double trap (Olympics-gold-1996) July 16, 1978 Stephanie Lee Hamilton, Williston ND, Miss America-ND (1997) July 16, 1976 Anna Smashnova, Minsk Russia, tennis star (1993 Futures-Erlangen GER) July 16, 1976 Michael Petkovic, Australian soccer goalie (Olyroos, Olympics-96) July 16, 1975 Jonathan Zwinkel, hockey forward (Team France 1998) July 16, 1974 Michelle Chandler, Australian basketball point guard (Olymp-bronze-96) July 16, 1973 Karla Beteta, Miss Universe-Guatemala (1996) July 16, 1973 Shaun Pollock, cricketer (son of Peter South African Test quick 1995-) July 16, 1972 Aaron Glenn, NFL cornerback/kick returner (NY Jets) July 16, 1972 Mindy Carson, NYC, vocalist (Club Embassy, Ford Star Revue) July 16, 1971 Chris Thomas, NFL wide receiver (SF 49ers) July 16, 1971 Corey Feldman, Encino Calif, actor (License to Drive, Stand by Me) July 16, 1970

67. The Discovery Of The Electron And The Atomic Nucleus Both julius plucker (1801 to 1868) and Crookes performed this test and found thata magnet did deflect cathode rays. Thus, these objects had to be particles. http://ganymede.nmsu.edu/tharriso/ast301/class20.html

The Discovery of the Electron and the Atomic Nucleus In our last lecture we were briefly discussing the historical study of electricity. It is this study which will lead us to an understanding of the atom. Of course at the turn of the 18th century, the true nature of the atom was unknown, if you believed in such things, you believed they were little hard objects that could not be destroyed. As good experimentalists do, as soon as there were good sources of electric currents, people started to determine what type of materials carried an electric current, and what type of materials did not. Soon, the question was posed: could you drive an electric current across a vacuum? So, people produced glass tubes where the air had been sucked out, and attached them to a high voltage source to try to push the current through the vacuum. When this was done, it was noticed that the tube glowed! But this was because there was residual gas within the tube, if a better vacuum was applied, the glow died out (except right at the cathode). What was this electricity? How could it travel through a vacuum? First, was there something traveling? In 1875, William Crookes (1832 to 1919) suspended a small piece of metal foil in the middle of the tube and found that it cast a shadow on the "cathode" (the positive end of a battery is called a cathode, in the following diagram the cathode should have been labeled with a "+" sign). A Crooke's tube:

68. PDA-Forum > PDAPortal > Julius Baer Funds Translate this page julius Baer Funds. Beschreibung julius Baer Investment Funds. Sprache(n)English. Format WAP. Channel abonnieren AvantGo, WebToGo. Mazingo, plucker. http://www.pdaportal.de/channel.php?cid=1026

69. Howeth: Appendix A Timeline (1963) The Bureau of Ordnance and Hydrography was assigned the responsibilityfor signals and ciphers. 1859 julius plucker observed cathode rays. http://earlyradiohistory.us/1963hwa.htm

TOC Previous Section: Chapter XLII Next Section: Appendix B History of Communications-Electronics in the United States Navy , Captain Linwood S. Howeth, USN (Retired), 1963, pages 513-546: Appendix A. Chronology of Developments in Communications and Electronics Thales of Miletus noticed the phenomena of static electricity acquired by amber upon its being rubbed. William Gilbert first used the term "electric force" in his published volume "De Magnete." (England) Otto von Guerke developed the first frictional electric machine. (Germany) Olav Roemer discovered that light travels at a finite velocity. (Denmark) Stephen Gray discovered that electricity could be conducted as a current. (England) Pieter Van Musschenbroeck discovered the principle of the electrostatic condenser. This led to the invention of the Leyden jar. (Holland), Benjamin Franklin demonstrated that lightning is an electrical phenomena. The Continental Navy, forerunner of the U.S. Navy, was established. Ezek Hopkins was appointed Commander in Chief. The Continental Congress issued naval signal instructions. They consisted of signals based upon the manipulation of sails and the positions from which flags were displayed.

70. Call Number , Date , Author , Title AG6 W43 1990 ,1990 Kaup und Klaus Peters. QA3 P59 V. 2 ,1895, plucker, julius, 18011868. , Gesammeltewissenschaftliche Abhandlungen; im Auftrag der klg. QA3 P59 V. 1 ,1895 http://www.math.mcgill.ca/nigam/library/books_minus_rare.csv

71. Fondazione Scienza E Tecnica - Firenze ricordiamo le macchine ideate dal fisico tedesco julius plucker (1801-1868 http://fst.imss.fi.it/i155.html

Fondazione Scienza e Tecnica, Firenze, ITALIA Gli strumenti di fisica dell'Istituto tecnico toscano - Ottica MACCHINA A ONDE DI WHEATSTONE 630 x 200 x 150; sagome: 550 x 50 x 6 circa L'apparecchio, elaborato a partire dal 1835 circa dal fisico inglese Charles Wheatstone Julius Plucker (1801-1868) in collaborazione con il costruttore di strumenti Friedrich Fessel O. Schulze Propagazione di un'onda piana (ovvero polarizzata linearmente) Si inseriscono sui cursori 2 sagome verticali. Propagazione di onde circolari o ellittiche Interferenza di onde piane : Dopo aver prodotto un'onda piana sulla fiala di asticelle superiori, si inserisce nella macchina una coppia di guide verticali: l'onda risultante rappresenta la somma interferenziale dell'onde formate dalla serie di asticelle laterali mobili a da quella delle asticelle fisse di riferimento. altri fenomeni quali la rotazione del piano di polarizzazione, l'interferenza di un'onda polarizzata circolarmente con un onda piana o con una seconda onda circolare ecc. Home page Fondazione Torna all'Indice

72. A History And Explanation Of Plasmas For example, the combination of cathode rays discovered by julius plucker and Rontgen sstudy of fluorescence that eventually resulted in the cathode ray tube http://ctix.das.ucdavis.edu/plasma_explain.html

The history of plasma physics parallels the development of electricity and magnetism. In fact, plasma physics today can trace its origin to the merging of two distinct paths of physics: gaseous discharge and ionospheric/astrophysics studies. In the early days of the study of high voltage phenomena, it was discovered that "glowing ores" occurred when high voltages were applied to gases in a "vacuum tube." Sir William Crookesreporte the discovery and described it as "the Fourth state of Matter." The study of these gas discharges was quite difficult until the invention of the induction coil that made high voltage experiments routine. The first application of this electrical discharge was in vacuum tube electronics, and many famous physicists contributed to this area of study. For example, the combination of cathode rays discovered by Julius Plucker and Rontgen's study of fluorescence that eventually resulted in the cathode ray tube that is still used in television sets and computer monitors today.

73. BIOdotEDU William Crookes (an English physicist), among several others, including julius plucker,showed that bringing a magnet next to the sides of the tube caused the http://www.brooklyn.cuny.edu/bc/ahp/LAD/C3/C3_Electrons.html

Click here to Atomic Structure The Discovery of ... ... Electrons Discovery of Electrons In the 1800s electricity was new, exciting and the subject of a lot of study. The English chemist Humphrey Davy (1778-1829) had built the world's largest battery (over 250 metallic plates) and pushed the very high currents this battery could generate through all kinds of solutions, compounds and substances in the hope that the high energies involved would pull apart the chemical constituents. Using this technique, he discovered many things, including new elements, and aroused the interest of his pupil - Michael Faraday (1792 - 1867). Faraday coined many of the terms still used today, including electrolysis, electrolyte, electrodes, anode, anions, cathode and cations . He also got the idea to pass an electrical current (discharge) through a complete vacuum, just to see what happened - if anything. Unfortunately his methods of producing an appropriate vacuum were not good enough and he never really succeeded, but a German glass blower - Heinrich Geissler - certainly did. His apparatus consisted of a glass tube in which an anode (the positive pole, or plate) was at one end, and the cathode (the negative pole, or plate) was at the other end. His superior vacuum pump removed all the air from the tube, and he connected the anode and the cathode to the appropriate ends of a powerful battery. At high enough voltages electricity certainly seemed to be able to leap across the vacuum between the oppositely charged plates, but that was not all. On the wall opposite to the negative cathode, the glass glowed a strange, greenish color.

74. Timeline Of Valve Developments 1858. Cathode Rays. julius plucker demonstrated that magnetic fieldsbend what later became known as cathode rays. 1860. Lamps. Joseph http://www.r-type.org/static/time01.htm

Valve Technology Milestone Timeline Chapters Early History First World War Second World War Post War developments Early History Vacuum Pumps The first vacuum. Otto von Guericke's air pump Mercury Barometer The barometer first demonstrated by Evangelista Torricelli Vacuum Pumps Magdeberg Hemispheres a demonstration of the force of air pressure Air Pumps Improved air pump and treatise on vacuum experiments published. Pressure explained? Jacob Hermann suggests that gas pressure is proportional to density and to the square of the average velocity of the gas particles in motion Avogadro's Law A principle stated in 1811 by the Italian chemist Amedeo Avogadro (1776-1856) that equal volumes of gases at the same temperature and pressure contain the same number of molecules regardless of their chemical nature and physical properties Geissler Tube Johann Geissler produces a mercury vacuum pump and with it he produces the first good vacuum discharge tubes Gas Properties Karl Kronig suggests that gas molecules in equilibrium travel in straight lines unless they collide with something Cathode Rays Julius Plucker demonstrated that magnetic fields bend what later became known as cathode rays.

75. Tube à Rayons Cathodiques, TRC Translate this page a été mis au point en 1897 par Karl F. Braun dans la foulée du travail effectuéauparavant par julius plucker, William Crook et Ambrose Fleming. http://www.comm.uqam.ca/~GRAM/C/term/tcm/tcmt139.html

tube à rayons cathodiques, TRC cathod ray tubes - CRT infographie, vidéo - (n.m.) Mode d'affichage constitué principalement d'un canon à électrons et d'un système de déviation verticale et horizontale qui oriente le faisceau vers un écran à luminophores. Le faisceau d'électrons balayant l'écran, de droite à gauche, de haut en bas, excite les luminophores qui recouvrent la surface de l'écran et forment le spot. Dans le domaine de l'informatique tout comme dans les domaines médical, militaire et scientifique, le sigle anglais CRT est utilisé pour désigner un moniteur. On dit aussi tube image, cinéscope. Tube à l'origine du balayage électronique, l'oscilloscope à rayons cathodiques a été mis au point en 1897 par Karl F. Braun dans la foulée du travail effectué auparavant par Julius Plucker, William Crook et Ambrose Fleming. Le tube à rayons cathodiques a été développé entre 1930 et 1940 pour les radars de télévision ; il a été utilisé pour la première fois comme sortie graphique d'ordinateur en 1950, par le système américain de surveillance aérienne SAGE (Semi Automatic Ground Environment). Mais c'est en 1963 qu'Ivan E. Sutherland, du Massachusetts Institute of Technology, l'intègre au premier système véritablement infographique et crée le Sketchpad.

76. Teschek/Aaron/Schmelzer/Dolan/Busheme 2. Heinrich julius 2 Schmelzer (Wilhelm 1 ) was born in WaldeckPyrmont was thedaughter of Ludwig Wilhelm Christian Siebert and Marie Friederike plucker. http://freepages.genealogy.rootsweb.com/~teschek/teschek/i0000038.htm

OAS_AD('Top'); Second Generation Heinrich Julius Schmelzer Wilhelm ) was born in Waldeck-Pyrmont, (now Germany) about 12 June 1840. His date of birth is taken from his age at death of 44-7-15, and his place of birth is taken from the 1880 census, which said simply "Piermont, Germany". Henry died of pneumonia, 27 January 1885, in Cambridge, Middlesex County, Massachusetts, at 44 years of age. He was buried in Cambridge Cemetery. He married Hermine Siebert, about 1862, in Germany. Minnie was born 17 November 1842, in Arolsen, Waldeck-Pyrmont, (now Germany). The birth name for her in the Arolsen church records was Friederike Wilhelmine Hermine Siebert. She also went by the name of Mary later in life. Minnie was the daughter of Ludwig Wilhelm Christian Siebert and Marie Friederike Plucker. Minnie died of a cholecystectomy, 14 December 1907, at Malden Hospital, in Malden, Middlesex County, Massachusetts, at 65 years of age. A cholecystectomy is the removal of the gall-bladder by operation. She was buried Dec. 17th at Forest Dale Cemetery in Malden. According to their daughter Carrie's obituary they came to the United States in 1872. Henry was a shoemaker by occupation. When the 1880 census was taken in June of that year the family was living at 76? (the 6 was hard to read) Harvard St. in Cambridgeport, a section of Cambridge, Mass. They had a boarder named Henry Johnson, age 30, born in Massachusetts of Virginia parents, occupation Teamster, living with them at the time.

77. Our Mathematical Ancestors julius PluckerFelix Klein Adolph Hurwitz) David Hilbert Erhard Schmidt Salomon Bochner. http://www.math.upenn.edu/100/ancestors.html

Our Mathematical Ancestors (October 1999) Christos Athanasiadis Chebyscheff Markov Tamarkin Nelson Dunford Jacob T. Schwartz Gian-Carlo Rota Richard P. Stanley Jonathan Block Raoul Bott Irene I. Bouw F. Oort Eugenio Calabi Felix Klein Adolph Hurwitz) David Hilbert Erhard Schmidt Salomon Bochner Thesis Students : R. J. Milgram, Carlos Ferraris, Salvador Gigena, Tom Sayin Ho, Jianfang Li, Xiuxiong Chen Luca Capogna J. J. v. Littrow N. Braschman P. L. Chebyshev G. F. Voronoi W. Sierpinski Antoni Zygmund Eugene Fabes Ching-Li Chai Brioschi Cremona Veronese G. Castelnuovo Oscar Zariski David Mumford Thesis Students : Jeff Achter, Chia-Fu Yu Ted Chinburg Josef Stefan Ludwig Boltzmann Gustav Herglotz Emil Artin John T. Tate Thesis Students : Sunghan Bae, Seyong Kim, David Solomon, Tom Schmidt, Tony Costa, Adebisi Agboola, Mike Rogers, George Pappas, Chi-Fong Lau, Seon-In Kwon, Caiqun Xiao, Shubin Hu, Matrias Atria, Darren Glass Christopher Croke E. H. Moore George David Birkhoff M. H. Stone Richard V. Kadison Richard Lashof Thesis Students : Jin-Whan Yim, Jianguo Cao, Tobias Colding, Xiaobo Liu, Scott Pauls

78. Julius Plücker julius Pl?ker. julius Pl?ker (June 16, 1801 May 22, 1866) was a Germanmathematician and physicist. He made fundamental contributions http://www.fact-index.com/j/ju/julius_pluecker.html

Main Page See live article Alphabetical index Julius Plücker Julius Plücker June 16 May 22 ) was a German mathematician and physicist . He made fundamental contributions to the field of analytical geometry and was a pioneer in the investigations of cathode rays that led eventually to the discovery of the electron . He also vastly extended the study of Lamé curves. Plücker was born at Elberfeld Wuppertal . After being educated at Dusseldorf and at the universities of Bonn Heidelberg and Berlin he went to Paris in 1823, where he came under the influence of the great school of French geometers, whose founder, Gaspard Monge , was only recently dead. In 1825 he returned to Bonn, and in 1828 was made professor of mathematics. In the same year he published the first volume of his Analytisch-geometrische Entwickelungen , which introduced for the first time the method of abridged notation. In 1831 he published the second volume, in which he clearly established on a firm and independent basis the great principle of duality. In 1847 Plücker he was made professor of physics at Bonn. In 1858 he published the first of his classical researches on the action of the magnet on the electric discharge in rarefied gases. He found that the discharge caused a fluorescent glow to form on the glass walls of the vacuum tube, and that the glow could be made to shift by applying an electromagnet to the tube, thus creating a magnetic field. It was later shown that the glow was produced by cathode rays.

79. AIM25: University College London: London Mathematical Society Archive In Memoriam D Chelini, ed Luigi Cremona (Milan, 1881); edited The Mechanical Theoryof Heat (London, 1867), translated from Rudolf julius Emmanuel Clausius s http://www.aim25.ac.uk/cgi-bin/search2?coll_id=5031&inst_id=13

80. Science And Society Picture Library Credit Science Museum/Science Society Picture Library Keywords PersonalitiesPlucker, julius Man Men German Mathematicians Mathematics Physics Physicists http://www.nmsi.ac.uk/piclib/imagerecord.asp?id=10302566

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