In the June 1956 issue of Physics Today we reported on the first meeting devoted to papers dealing with progress toward using atomic and molecular resonances as high‐precision frequency standards. Since then, the Frequency Control Division of the US Army Signal Research and Development Laboratory has included papers in this field at its annual meetings. This year's meeting indicated the striking progress accomplished in all of the related phases of research and development, so that those present were again treated to an interesting and complete survey.
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© 1958 American Institute of Physics.
1958
American Institute of Physics
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