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Atomic Masses and Fundamental Constants 5 - download pdf or read online

By A. Kastler, P. Grivet (auth.), J. H. Sanders, A. H. Wapstra (eds.)

ISBN-10: 1468426826

ISBN-13: 9781468426823

ISBN-10: 1468426842

ISBN-13: 9781468426847

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OPENING REMARKS xxxiii The fact that this week's conference is part of the celebration of the centennial of the "Convention du Metre" and the establishment of BIPM is partially responsible for the strong emphasis here on fundamental constants. But there is a widening of the scope of the conference on the mass side as well: in 1971 there was some discussion of the masses (or energy levels) of excited states of nuclei and increased discussion of the influence of excited electronic states of the products in nuclear reactions on Q-value measurements.

I hope in my summary remarks on Friday to be able to report on this aspect in more detail. With this brief sketch of the history of these conferences and some incomplete analysis of the scope of the present one, I shall end these remarks and allow the conference to speak for itself. Tych o Brahe THE MEASUREMENT OF FUNDAMENTAL CONSTANTS (METROLOGY) AND ITS EFFECT ON SCIENTIFIC AND TECHNICAL PROGRESS A. Kastler, Nobel Prize, Member of the Academy of Science P. 5006 Paris~ France I. INTRODUCTION It is perhaps appropriate that in this year 1975, which marks the centenary of the Systeme Metrique and that of the Bureau Intel•nationaZ des Poids et Mesures~ scientific activity in the field of Metrology appears to be flourishing.

Lorritt Fig . 2-a ~. Fi g . 2- b . 22 A. KASTLER AND P. GRIVET l MICROWAVE RADIAT ION OF KNOWN FREQUENCY CURRENT LEADS l VOLTAG E L EADS 6 iii w a: w Cl. _j ___ , ____ ,,----- 4 :2 <( ___rr :::i = ~ f2 w a: a: 2 ::::> u --0 90 0 IIOLTAGE (M ICROVDL TSI WAVE GUIDE Fig . 3 G t 1 minute Fi g . 5 180 23 METROLOGY AND ITS EFFECT MOUNTING SYSTEM Fig . 6 .. 0 rfr. ht W. 0r! r+t. ffi uJ\0H •• 0 • ffi 0 ~-·11J: f+t 1 sec 1--------i j3 X 10"' gauss~ Fig . 7 CONSTANTES PHYSIQUES ET METROLOGIE J. TERRIEN Directeur du Bureau International des Poids et Mesures Pavillon de Breteuil F - 92310 SEVRES A cette Conference qui va s'achever, on a beaucoup parle des constantes fondamentales de la physique et de la mesure de leur valeur.

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Atomic Masses and Fundamental Constants 5 by A. Kastler, P. Grivet (auth.), J. H. Sanders, A. H. Wapstra (eds.)

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