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Physics Today 3 (9), 3 (1950); https://doi.org/10.1063/1.3067021

Articles

Physics Today 3 (9), 6–12 (1950); https://doi.org/10.1063/1.3067022

Sometimes an old and tried method is so steadily fruitful and so promising in what it might reveal if improved that it has served as a continuous challenge to successive generations of physicists. This is so with the diffraction grating used for spectroscopy. But it is often easier to meet the demands of increasing accuracy by changing one's approach than it is to pursue the original method of attack. The history of ruling gratings is outlined here, as are some of the new attacks on the problem.

Physics Today 3 (9), 13–19 (1950); https://doi.org/10.1063/1.3066993

The microscopic examination of fractured metal by a special “fractographic” technique is proving useful in revealing something of the manner in which metal coheres and in throwing some light on the nature of the minute subdivisions of metallic crystals.

Physics Today 3 (9), 20–22 (1950); https://doi.org/10.1063/1.3066994

News and Views

Physics Today 3 (9), 23–24 (1950); https://doi.org/10.1063/1.3066995

Draft deferment of physics students; Deferment of physicist members of military reserves

Physics Today 3 (9), 24–26 (1950); https://doi.org/10.1063/1.3066996

AAPT meeting reported; Piezoelectricity; The demonstration lecture as an art

Physics Today 3 (9), 26 (1950); https://doi.org/10.1063/1.3066997

Pocket‐size sound‐level meter

Physics Today 3 (9), 26 (1950); https://doi.org/10.1063/1.3066998

Next year’s Fulbright opportunities; Kimberly‐Clark Corporation fellowships

Physics Today 3 (9), 26 (1950); https://doi.org/10.1063/1.3066999

Group photo wanted

Physics Today 3 (9), 26 (1950); https://doi.org/10.1063/1.3067000

Contributions welcomed

Physics Today 3 (9), 26–27 (1950); https://doi.org/10.1063/1.3067002

Information on labs needed

Physics Today 3 (9), 27 (1950); https://doi.org/10.1063/1.3067003

Argentina's AEC; APS; New course at NYU; New curriculum at Lehigh.

Physics Today 3 (9), 27 (1950); https://doi.org/10.1063/1.3067004

X‐ray spectroscopy and the solid state

Physics Today 3 (9), 27 (1950); https://doi.org/10.1063/1.3067005

Concave not convex

Obituaries

Physics Today 3 (9), 27 (1950); https://doi.org/10.1063/1.3067006
Physics Today 3 (9), 27 (1950); https://doi.org/10.1063/1.3067007

Institute Doings

Physics Today 3 (9), 28–29 (1950); https://doi.org/10.1063/1.3067008

New Plan For STUDENT ORGANIZATION

Notes from Abroad

Physics Today 3 (9), 30–31 (1950); https://doi.org/10.1063/1.3067009

Books

Physics Today 3 (9), 31–32 (1950); https://doi.org/10.1063/1.3067010
Physics Today 3 (9), 32–33 (1950); https://doi.org/10.1063/1.3067011
Physics Today 3 (9), 33 (1950); https://doi.org/10.1063/1.3067012
Physics Today 3 (9), 33 (1950); https://doi.org/10.1063/1.3067013
Physics Today 3 (9), 34 (1950); https://doi.org/10.1063/1.3067014

Journal Notes

Physics Today 3 (9), 35 (1950); https://doi.org/10.1063/1.3067015
Physics Today 3 (9), 35 (1950); https://doi.org/10.1063/1.3067016
Physics Today 3 (9), 35–37 (1950); https://doi.org/10.1063/1.3067017
Physics Today 3 (9), 37 (1950); https://doi.org/10.1063/1.3067018
Physics Today 3 (9), 37 (1950); https://doi.org/10.1063/1.3067019

Whereabouts

Physics Today 3 (9), 38–40 (1950); https://doi.org/10.1063/1.3067020
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