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Issues
July 1980
ISSN 0031-9228
EISSN 1945-0699
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Articles
The method of successive oscillatory fields
Physics Today 33 (7), 25–30 (1980);
https://doi.org/10.1063/1.2914161
An extension of Rabi's molecular‐beam resonance method, originally devised for measuring nuclear magnetic moments, is proving useful also for microwave spectroscopy, masers and lasers.
Does gravity change with time?
Physics Today 33 (7), 32–37 (1980);
https://doi.org/10.1063/1.2914162
Highly regarded theories hold that the gravitational “constant” should decrease with time. To date no observations have refuted this prediction and some offer positive evidence supporting it.
Quarks, atoms, and the 1/N expansion
Physics Today 33 (7), 38–43 (1980);
https://doi.org/10.1063/1.2914163
Problems in quantum chromodynamics that are currently impossible to solve may have useful approximate solutions when one assumes that quarks can have a large number, N, of “colors” instead of three.
Books
Electricity in the 17th and 18th Centuries: A Study of Early Modern Physics
Physics Today 33 (7), 46 (1980);
https://doi.org/10.1063/1.2914165
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Editorial
Corals face historic bleaching
Alex Lopatka
Grete Hermann’s ethical philosophy of physics
Andrea Reichenberger
Focus on lasers, imaging, microscopy, and photonics
Andreas Mandelis