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May 1950

Volume 3, Issue 5

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ARTICLES

Select this Article		The latent image J. H. Webb


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	+ -	Show Topic A few quanta of light leave their imprint on photographic emulsion by forming a few atoms of silver and thereby photographic reproduction is possible. This article is a discussion of the physical aspects of the latent image process.

Select this Article		Mesons Ugo Camerini and Hugh Muirhead


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	+ -	Show Topic The most penetrating cosmic rays have turned out not to be of cosmic origin at all, but the short‐lived results of cosmic ray bombardment of the atmosphere. Called mesons, these particles are suspected to be of fundamental importance in nuclear structure. In the last few years much exciting experimental work in this field has been done at the University of Bristol in England and two physicists there write about the particles of which so much is expected.

Select this Article		The spirit of research in the United States André Guinier


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	+ -	Show Topic Though the language of science is international, there are differences in the approach to science between nation and nation which are a natural result of different cultures. What follows is a comparison of American with French attitudes, the result of a French scientist's two-month visit to this country. The observations first appeared in the French journal L'Atomes in November, 1947; the translation is by Louise C. Riggs.

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LETTERS

Select this Article		On the Corson Letter Carl C. Sartain and R Edwin Worley


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Select this Article		Unbend Frances Britt


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Select this Article		Amplification Stephen V. Zavoico


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		Lead Unavailable

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BOOKS

Select this Article		Trilinear Chart of Nuclear Species and A‐W Chart of Nuclear Data William H. Sullivan and B. T. Feld, Reviewer


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Select this Article		Giant Brains or Machines That Think Edmund C. Berkeley and S. P. Frankel, Reviewer


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Select this Article		Books Received


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NEWS AND VIEWS

Select this Article		About Secrecy


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	+ -	Show Topic Science and the H‐bomb

Select this Article		H‐Bomb Talk Restricted


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	+ -	Show Topic AEC clamps down

Select this Article		Berkelium, Californium


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	+ -	Show Topic Elements 97 and 98

Select this Article		Symposium on Thermionics at NYU George E. Moore


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	+ -	Show Topic Sponsored jointly by APS and RDB

Select this Article		New Journals


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	+ -	Show Topic Meteorological abstracts; British Journal of Applied Physics

Select this Article		Meetings Coming


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	+ -	Show Topic Optics in London; Conference on Ionospheric Physics; AAAS Instrumentation Conference.

Select this Article		Society Activities


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	+ -	Show Topic Sigma Pi Sigma activities

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JOURNAL NOTES

Select this Article		Ultrasonic Wind K. F. Herzfeld


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Select this Article		Solutions of He³ in He⁴ O. K. Rice


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Select this Article		Micro Calorimeter G. H. Jenks


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Select this Article		Converted Ralph S. Halford


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CALENDAR OF EVENTS

Select this Article		Calendar of Events


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WHEREABOUTS

Select this Article		Whereabouts


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