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Issues
June 1977
ISSN 0031-9228
EISSN 1945-0699
Letters
Search and Discovery
Will supergravity unify quantum theory with general relativity?
In Special Collection:
Quantum archive
Physics Today 30 (6), 17–19 (1977);
https://doi.org/10.1063/1.3037591
Evidence for ‐gauss field on neutron star
Physics Today 30 (6), 19–20 (1977);
https://doi.org/10.1063/1.3037592
Articles
The magnetism of rare‐earth metals
Physics Today 30 (6), 23–30 (1977);
https://doi.org/10.1063/1.3037594
Although they are chemically similar, these fifteen elements—one sixth of the periodic table—exhibit a broad spectrum of unusual magnetic properties that may be custom controlled by alloying.
The cosmological constant and cosmological change
Physics Today 30 (6), 32–38 (1977);
https://doi.org/10.1063/1.3037595
The constant originally proposed by Einstein, and recent ideas on evolutionary processes affecting galaxies, are factors in the latest attempts to discover what type of universe we live in.
Ultracold neutrons
Physics Today 30 (6), 42–51 (1977);
https://doi.org/10.1063/1.3037596
Neutrons with energies around one hundred nanoelectron volts can be extracted from reactors and stored for up to 400 seconds—long enough to encourage a search for the neutron electric dipole moment.
Books
We Hear That
Obituaries
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New Products
Editorial
France’s Oppenheimer
William Sweet
Making qubits from magnetic molecules
Stephen Hill
Learning to see gravitational lenses
Sebastian Fernandez-Mulligan