Walter Gordy 1909–1985
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NORMAN F RAMSEY HANS G DEHMELT and WOLFGANG PAUL
Physics 1989 NORMAN F RAMSEY for the invention of the separated oscillatory fields method and its use in the hydrogen maser and other atomic clocks HANS G DEHMELT and WOLFGANG PAUL for the development of the ion trap technique THE NOBEL PRIZE IN PHYSICS Speech by Professor Ingvar Lindgren of the Royal Swedish Academy of Sciences. Translation from the Swedish text. Your Majesties, Your Royal Highnesses, Ladies and Gentlemen. This year’s Nobel Prize in Physics is shared between three scientists, Professor Norman Ramsey, Harvard University, Professor Hans Dehmelt, University of Washington, Seattle, and Professor Wolfgang Paul, University of Bonn, for “contributions of importance for the development of atomic precision spectroscopy. ” The works of the laureates have led to dramatic advances in the field of precision spectroscopy in recent years. Methods have been developed that form the basis for our present definition of time, and these techniques are applied for such disparate purposes as testing Einstein’s general theory of relativity and measuring continental drift. An atom has certain fixed energy levels, and transition between these levels can take place by means of emission or absorption of electromagnetic radiation, such as light. Transition between closely spaced levels can be induced by means of radio-frequency radiation, and this forms the basis for so-called resonance methods. The first method of this kind was introduced by Professor I. Rabi in 1937, and the same basic idea underlies the resonance methods developed later, such as nuclear magnetic resonance (NMR), electron-spin resonance (ESR) and optical pumping. In Rabi’s method a beam of atoms passes through an oscillating field, and if the frequency of that field is right, transition between atomic levels can take place. -
Minutes of the Meeting at Washington
P H YSICAI. REVI EW VOLI,'ME 79, NUM BER 1 JL'LV i i950 Proceedings of the American Physical Society INUTEs oF THE MEETING AT WAsHINGToN, APRIL 27—29, 1950 HE 299th meeting of the American Physical except for the renumbering of the pages. Preceding Society, being the 1950 Spring Meeting, was these pages are printed the "errata" which the con- held at Washington, D. C., on Thursday, Friday, tributors of abstracts have sent to the American and Saturday, April 27, 28, and 29, 1.950. Most of Institute of Physics since the Bulletin appeared. our recent meetings have been unique in one im- The banquet of the Society was held on the portant feature or another; this one comprised Friday evening in the Grand Ballroom of the May- the greatest number of contributed (ten-minute) flower Hotel, and was adorned by after-dinner papers on record, amounting to 273. Since —more speeches by W. V. Houston and H. D. Smyth. through accident than through design —the number The Council met on the Wednesday preceding of invited papers was unusually small and there the meeting of the Society, and selected to Member- were no symposia, the total number of papers did ship one hundred and five candidates whose names not set a new record, and the available halls were appear hereinafter. It will be of interest to our ample for our meetings. We are grateful to the members to learn that the work of preparing a I ocal Committee, headed as in recent previous thirty-year Author and Subject Index of The years by Claire Marton and Hugh Odishaw, who Physical Revim is well under way. -
ED026268.Pdf
DOCUMENT RESUME 11 ED 026 268 SE 006 034 By -Barisch, Sylvia Directory of Physics & Astronomy Faculties 1968-1969, United States,Canada, Mexico. American Inst. of Physics, New York, N.Y. .. Report No-R-135.7 Pub Date 68 Note-213p. Available from-The American Institute of Physics, 335 East 45 Street, NewYork, N.Y. 10017 ($5.00) EDRS Price MF-$1.00 HC-$10.75 Descriptors-*Astronomy, College Faculty, *College Science, Curriculum, Directories,Educational Programs, Graduate Study, *Physics, *Physics Teachers, Undergraduate Study Identifiers.- Ar vrican Institute of Physics This directory is the tenth edition published by the AmericanInstitute of Physics listing colleges and universities which offer degreeprograms in physics, astronomy and astrophysics, and the staff members who teach thecourses. Institutions in the United States, Canada, and Mexicoare indexed separately, both geographically and alphabetically. Also included isan alphabetical indek of personnel. The document is available for sale by Department DAPD, the American Institute ofPhysics, 335 East 45 Street, New York, New York 10017, price $5.00. (GR) -.. --',..- 4ttsioropm.righ /RECTO PHYSICS & ASTR ...Y FACULTIES1 1969 UNITED STATES CANADA I MEXICO s - - - i) - - . r_ tt U S DEPARTMENT Of HEALTH EDUCATION & WELFARE OFFICE Of EDUCATION THIS DOCUMENT HAS BEEN REKOD:_FD EXACTLY AS RECEIV:D FROM THE )ERSON OR ORGANIZATION ORISINATING IT POINTS Of VIEW OR OPINIONS S'ATEJ DO NOT NECESSARILY PEPRESENT OFFICIAL OFFICE OF EDUCATION PCSITION OR PO'..ICY , * , + t ..+, ,..,.-,. .1. Ca:. - -,.. - , ts _ - 41 ) s: -. - ',',...3,,,_ c -- - .-,, '0'- _ -, tt't-,), _ .'Y .-ct, ,;,---,,,,,,,- t--, -.rfe - 4 ;:': e-...,- : 0:4_, O'i -.. - t _ *s, :::-.", r.,--4, .4 --A,-, 0 -.,,, -- ....,-_:134,,- - - 0 ., Q9 , 0i '.% .J, ".t.. -
1959 Research Highlights of the National Bureau of Standards
UNITED STATES DEPARTMENT OF COMMERCE Frederick H. Mueller, Secretary NATIONAL BUREAU OF STANDARDS A. V. Astin, Director Research Highlights of the National Bureau of Standards Annual Report, Fiscal Year 1959 December 1959 Miscellaneous Publication 229 For sale by the Superintendent of Documents, U.S. Government Printing Office Washington 25, D.C. - Price 55 cents Contents Page 1. General Review 1 Technical Activities 2 Administrative Activities 13 Programs Planned 14 Publications 15 2. Highlights of the Research Program 17 2.1. Electricity and Electronics 17 Automatically measuring high resistance 17, Computable stand- ard of capacitance 17, Electron devices data service 18, Ceramic wafer tubes 18, Methods for testing servo motors 18, Dielectric properties of nylon 18, Preferred circuits 19, Recording spectro- radiometer 19, Electronic metrology 19, Galvanic corrosion of metallic silver 19, Evaluating storage batteries 20, Dry cell specifications 20, International comparison of transformer ratio measurements 20. 2.2. Optics and Metrology 21 Color differences by high-speed computer 22, New color charts 22, Lens aberrations measured 22, Lens distortion measure- ments refined 23, Lens calibration methods analyzed 23, Anti- collision lights for airplanes 23, Visual landing aids devised 24, Photometric equipment improved 24, Bearing ball and cylinder measurements improved 24, Interference fringe path extended 24, Research on improved lightwave length standards 25, Lens design by high-speed computer 26, High-precision gage blocks 26, Advances