Hofstra University President James M. Shuart Graduates With His Students Commencement Speakers includeJoseph M. Margiotta, Dr. gerardus t hooft, Walter B. Kissinger, Dr http://www.hofstra.edu/FORMS/FORMS_printPage.cfm?thepage=ur_sms_commencement
SAF - Actualité t hooft et Martinus JG Veltman, prix Nobel de physique. gerardus thooft. gerardus t hooft possède un site Web http//www.phys.uu.nl/~thooft. http://www2.iap.fr/saf/actualite/actu071099.htm
Extractions: 7 octobre 1999 Une lune de 13 km de diamètre, gravitant sur une orbite circulaire de 1 190 km autour d'Eugenia, un astéroïde de 215 km de large, a été découvert en novembre 1998. Les astronomes travaillant avec le système d'optique adaptative du téléscope France-Canada-Hawaii, à Hawaii ont publié le résultat de leur recherche dans la revue "Nature". Galileo (Source AFP) 8 octobre 1999 Royal Astronomical Society La trajectoire étrange qu'empruntent les comètes lors de leur arrivée dans le système solaire indiquerait la présence d'une planète ayant au moins la taille de Jupiter et située à environ 30 000 fois la distance du Soleil à la Terre. De nombreuses comètes proviennent du "nuage d'Oort" situé à l'extérieur du système solaire et, selon J. Murray, n'y pénètrent que lorsqu'elle sont "dérangées". Encore inconnue, cette planète qui est aussi la dixième, continue de s'appeler "X".
Sección: Nobeles de la Universidad de Utrecht (Holanda) doctores gerardus t hooft y Martinus http://www.fcen.uba.ar/publicac/revexact/exacta16/nobeles.htm
Extractions: Revista Exacta mente . Nro 16 Nobeles "L os profesores de la Universidad de Utrecht (Holanda) doctores Gerardus t Hooft y Martinus Veltman, reciben el premio Nobel de Física 1999 por la dilucidación de la estructura cuántica de las interacciones electrodébiles", declaró recientemente la Real Academia Sueca de Ciencias en su clásico formato de comunicado de prensa. En una explicación un poco menos técnica, el premio se otorga al mérito de los autores por haber establecido una formulación teórica que describe el comportamiento de la materia en la escala de las partículas elementales y que experimentos muy precisos confirmaron recientemente. La naturaleza imita al arte Cualquier fragmento del Guernica de Picasso tiene la aparente contradicción entre una asombrosa simplicidad y a la vez una gran carga expresiva. Ese paradigma de simplicidad conteniendo una suma de conceptos no es sólo patrimonio de la creación artística. Muchas generaciones de científicos crearon conocimiento genuino acerca de la naturaleza guiados por un criterio estético de simplicidad que a la vez fuera capaz de poder explicar cada vez más. "La simplicidad es la forma de la belleza", decía el filósofo Baruj Spinoza. Este paradigma de simplicidad se corporiza en Física en la forma de una concepción unificada de las leyes que describen la materia y sus interacciones.
Online NewsHour: Nobel Prize For Physics -- October 12, 1999 Two Dutch physics professors, gerardus t hooft and Martinus JG.Veltman, were awardedthe 1999 Nobel Prize for Physics for putting particle physics theories on http://www.pbs.org/newshour/nobel_1999/physics.html
Extractions: German author Günter Grass wins the Nobel Prize for Literature. Browse the NewsHour's coverage of Science and Health The Nobel Foundation The Nobel Foundation's announcement of the 1999 Nobel Prize for Physics Gerard 't Hooft at the University of Utrecht Martinus Veltman at the University of Michigan The research, which dates back to 1970, could lead the way to super-fast quantum computers which could do in days what would take thousands of years for modern computers. "This is the entire framework [particle physicists] use when calculating. We'll get finite answers. Earlier calculations only resulted in nonsense," said Lars Brink, a professor of Chalmers University of Technology Institute and a member of the academy.
What Is A Force, Really? they both are correct! gerardus t hooft Nobel Prize in Physics 1999.Martinus JG Veltman Nobel Prize in Physics 1999. A major effort http://www.batesville.k12.in.us/physics/PhyNet/Mechanics/Newton1/what_is_a_force
Extractions: BHS Staff Mr. Stanbrough Physics ... Forces There seems to be a myriad of different kinds of forces acting in our world - friction, air resistance, gravity, normal forces, forces people exert, electrical forces, magnetic forces, etc. Physicists have always had the notion that the universe is essentially simple, though not simple-minded, and that what appears to be countless different kinds of forces are actually all intimately related - perhaps just different aspects of a single concept. Over the last few hundred years, physicists have made great progress toward showing that their notion of simplicity is correct - although the task is not yet complete. Isaac Newton (1643-1727) Perhaps the first major step toward this unification was made by Isaac Newton in the late 17th century, when he showed that the gravitational force that causes an apple to fall from a tree, and people to have weight, is exactly the same force that causes the Moon to orbit Earth, or Earth and the other planets to orbit the Sun. His Universal Law of Gravitation , was soon recognized as being incredibly accurate and important (although experimental verification of the gravitational force between two human-scale objects had to wait until the Cavendish experiment in the 19th century). All the same, this discovery caused as much confusion as it allayed. How could it be, scientists asked, that the Earth could exert a force on the Moon, for instance
FermiNews - December 17, 1999 me, nature is a big jigsaw puzzle, and I see it as my task to try to fit piecesof it together. Web home page of Professor gerardus T hooft, University of http://www.fnal.gov/pub/ferminews/ferminews99-12-17/p2.html
Extractions: Nobel '99 A Strong Vote for Electroweak Theory "To me, nature is a big jigsaw puzzle, and I see it as my task to try to fit pieces of it together."Web home page of Professor Gerardus 'T Hooft, University of Utrecht, Netherlands by Mike Perricone I n the early 1970s, Chris Quigg was a young physicist at the State University of New York at Stony Brook, on Long Island. He met another young physicist from the Netherlands, named Gerardus 't Hooft, at a reception for new Ph.D.'s in the home of a Stony Brook professor. "A card table had been set up with pieces of a jigsaw puzzle scattered over it, and people would come over to put in usually a corner piece or an edge piece," Quigg recalled. "'t Hooft picked up a random piece, not an edge or a corner, but something from the middle. He stared at it intently. Then he put it down on the table, with great confidence, exactly where it should go. At the least, it was a good act. I decided from that moment, that here was a guy with very impressive geometrical insight." Quigg's intuition was accurate. 't Hooft was already immersed in the work that was to win the 1999 Nobel Prize in Physics for himself and for his teacher, Martinus Veltman, cited by the Royal Swedish Academy of Sciences "for elucidating the quantum structure of electroweak interactions in physics."
Premios Nobel · Libros · Cultura Y Ciencia · Terra gerardus t hooft. Fecha de nacimiento 5 de julio de 1946País de Nacimiento Países Bajos País de Concesión Holanda. http://cultura.terra.es/cac/libros/nobel/portada.cfm?idpersona=407&idpremio=198
BBC News | Sci/Tech | Dutch Physicists Win Nobel Prize Professor gerardus t hooft, at the University of Utrecht, and Professor EmeritusMartinus Veltman, formerly of Utrecht and Michigan Universities, share the http://news.bbc.co.uk/hi/english/sci/tech/newsid_472000/472243.stm
Extractions: By BBC News Online Science Editor Dr David Whitehouse Two Dutch physicists, whose theoretical breakthroughs led to the discovery of new sub-atomic particles, have won the 1999 Nobel Prize for Physics. It marks the third time in ten years that contributions to particle physics have won the award. Professor Gerardus 't Hooft, at the University of Utrecht, and Professor Emeritus Martinus Veltman, formerly of Utrecht and Michigan Universities, share the prize of nearly £600,000. Particle master: Professor t'Hooft has spent nearly his whole career at Utrecht For thirty years they have been developing a series of mathematical procedures to explain the various families of sub-atomic particles. Their breakthrough paper was published in 1971. The Royal Swedish Academy of Sciences' citation said the prize was "for elucidating the quantum structure of electroweak interactions in physics." Well-deserved Paul Guinnessy, Editor of Physicsweb, told BBC News Online: "It is not a surprise that t'Hooft and Veltman have won the prize, they have done some outstanding work in particle physics.
Genes For Odorant Receptors Were First Cloned In 1991 THE 1999 NOBEL PRIZE FOR PHYSICS goes to gerardus t hooft of the University ofUtrecht and Martinus Veltman, formerly of the University of Michigan and now http://physics.pdx.edu/~larosaa/Nobel_Prize_In_pHYSICS_1999.htm
Extractions: Number 452 October 12, 1999 by Phillip F. Schewe and Ben Stein THE 1999 NOBEL PRIZE FOR PHYSICS goes to Gerardus 't Hooft of the University of Utrecht and Martinus Veltman, formerly of the University of Michigan and now retired, for their work toward deriving a unified framework for all the physical forces Their efforts, part of a tradition going back to the nineteenth century, centers around the search for underlying similarities or symmetries among disparate phenomena, and the formulation of these relations in a complex but elegant mathematical language. A past example would be James Clerk Maxwell's demonstration that electricity and magnetism are two aspects of a single electro- magnetic force. Naturally this unification enterprise has met with various obstacles along the way. In this century quantum mechanics was combined with special relativity, resulting in quantum field theory Quantum Field Theory Successfully explained many phenomena, such as how particles could be created or annihilated or how unstable particles decay
Extractions: STOCKHOLM, Sweden Egyptian-American scientist Ahmed H. Zewail won the Nobel Prize in chemistry Tuesday for showing that a rapid laser technique can observe the motion of atoms in a molecule during a chemical reaction. Hours earlier, Dutch quantum theory researchers Gerardus 't Hooft and Martinus J.G. Veltman won the 1999 Nobel Prize in physics for their work on the structure and motion of subatomic particles.
54th Lindau Meeting - 2004 Trip Report For Day Four Veltman Chairperson Dr. Anders Bàràny. Dr. gerardus t hooft presentation Supertheories . Dr. Vitaly Ginzburg presentation What http://www.orau.gov/lindau2004/report/day4.htm
Extractions: Chairperson: Dr. Anders Bàràny Dr. Gerardus 't Hooft presentation: "Supertheories" Dr. Vitaly Ginzburg presentation: "What Problems of Physics and Astrophysics Seem Now to Be Especially Important and Interesting in the Beginning of the 21st Century" Scientific discussion between the following Nobel Laureates and students/young researchers in the Inselhalle:
Gerard Van ´t Hooft Translate this page Physiknobelpreis 1999 (Nobel Prize Physics 1999) Gerardvan ´t hooft, niederl. Physiker, geb. 5. Juli 1946. http://www.zuta.de/nppyhs/hooft.htm
Veltman Et ,t Hooft t hooft Veltman, né en 1931; t hooft,né en 1946 aux Pays-Bas (Hollande). Prix Nobel 1999. Les http://www.cegep-st-laurent.qc.ca/depar/physique/hisVelt.htm
Nobelpreis Für Physik t hooft. Lehrstuhl t hooft. geboren1946 in Den Helder, Niederlande. Bürger der Niederlande. Zum http://www.3sat.de/nano/bstuecke/02421/
Extractions: Elementarteilchen mathematisch , W und Z , gibt, dessen Feld alle diese vielen Teilchen verursacht. Das Thema Gemäß der Quantenfeldtheorie besteht ein richtiges "physikalisches" Teilchen aus einem "nackten" Zentralteilchen "angezogen" mit einer Wolke von vielen kurzlebigen, sogenannten virtuellen Teilchen. Lesen Sie die ganze Story
Nobelprijsphysica991012 Door onze Internetredactie, 12 oktober 1999. De Nederlanders gerardus t Hooften Martinus Veltman hebben de Nobelprijs voor de Natuurkunde gekregen. http://www.rnw.nl/achtergronden/archief/ned/html/nobelprijsphysica991012.html
Extractions: I due ricercatori si sono distinti, scrivono gli accademici nella loro motivazione, per "aver fornito alla teoria della fisica delle particelle una base matematica più solida". Veltman e Hooft hanno inoltre dimostrato come utilizzare la teoria per precisare i calcoli dei valori fisici. E recentemente alcune esperienze sugli acceleratori di particelle fatte in Europa e negli Stati Uniti hanno confermato molti dei risultati raggiunti dai due fisici. E' infatti grazie ai loro studi che i ricercatori dispongono oggi di un edificio teorico che può servire, tra l'altro, a prevedere le proprietà di nuove particelle scoperte a partire dagli anni 50 con l'aiuto degli "acceleratori". Gerardus't Hooft, ritenuto uno fra i maggiori fisici teorici, è noto per aver teorizzato che il protone, benché formato da tante particelle, non si rompe. Con ciò, t'Hooft ha messo in discussione tutta l'impalcatura della meccanica quantistica, la teoria che governa da 50 anni la comprensione dell'atomo ma che, secondo il neo Nobel, è inadeguata a spiegare i segreti dei "buchi neri". Secondo il fisico Antonino Zichichi, t'Hooft "è stato il primo fisico teorico ad aver trovato la strada giusta per spiegare come mai l'ultimo mattone pesante dell'Universo (il protone) non si può rompere, nonostante sia fatto di tante cose. T'Hooft ha infatti scoperto che le forze che agiscono nell'universo subnucleare sono di carattere totalmente diverso da quelle a noi note.
2001: A Spacetime Odyssey The discovery that these theories are renormalizable, done with his studentGerardus t hooft, has revolutionized the field of particle physics. http://www.umich.edu/~mctp/sto2001/veltman.html
Extractions: Professor Veltman is known worldwide for his pioneering work on the renormalizability of gauge theories, having started this enterprise in 1968. The discovery that these theories are renormalizable, done with his student Gerardus 't Hooft, has revolutionized the field of particle physics. All interactionsweak, electromagnetic, and strongare described by a gauge theory, and the precise understanding of these theories has made it possible to extract precise predictions and quantities to be observed experimentally. Many of those predictions have been verified. After the discovery of the renormalizability of gauge theories, Professor Veltman was the first to start a systematic analysis of the calculation of radiative corrections. The methods developed by him, and his students, are the basis for that branch of research. Precision measurements at LEPthe large electron- positron collider at CERN, Geneva, Switzerlandhave by now confirmed the results in great detail, establishing firmly the above-mentioned principles of gauge theories and their renormalizability. In particular one may mention the discovery of certain radiative corrections that allowed a determination of the top quark mass well before it was actually discovered, with the actual value for the mass agreeing well with the value predicted by these radiative corrections.
Extractions: di Gianfranco Criscenti La relatività generale e la meccanica quantistica - gli strumenti teorici oggi disponibili per descrivere ciò che succede sulla Terra e nell'Universo sia a livello macroscopico che microscopico - non sono però sufficienti a soddisfare tutte le curiosità di alcuni fisici. Per esempio dell'olandese Gerardus 't Hooft, premio Nobel per la Fisica nel 1999. Che ha intrapreso l'ardua strada che dovrebbe portare alla "Teoria del Tutto": uno strumento concettuale che, senza contraddizioni, riesca a spiegare le regole che governano tutti i fenomeni fisici, dai buchi neri ai quark. La sua avventura teorica è stata oggetto di un intervento alla Scuola Internazionale di Fisica Subnucleare di Erice. Ma perché un fisico teorico che si occupa dei costituenti fondamentali della materia è così interessato ai buchi neri? La risposta è semplice: è in questi oggetti celesti che la relatività generale di Einstein e la meccanica quantistica di Bohr si sovrappongono: all'interno dei buchi neri, la presenza di un intensissimo campo gravitazionale fa si che la materia diventi estremamente densa; questa densità accende un'interazione tra le particelle della materia e il campo gravitazionale. Il sogno è, quindi, quello di trovare quella "Teoria del Tutto", che calza su misura per spiegare sia le galassie che le particelle subnucleari. In questa direzione si colloca, per esempio, la
Premio Compartido / 1999 t hooft (Compartido con Martinus JG Veltman).por descubrir la estructura cuantica de la interacción electrodebil. http://rsta.pucmm.edu.do/ciencias/fisica/nobel/1999.htm
