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Issues
December 1968
ISSN 0031-9228
EISSN 1945-0699
Letters
Few and inadequate telescopes
Physics Today 21 (12), 11–13 (1968);
https://doi.org/10.1063/1.3034640
Phimsy
Articles
We need more intense thermal‐neutron beams
Physics Today 21 (12), 23–30 (1968);
https://doi.org/10.1063/1.3034644
Most experiments have now reached sensitivity limits. If this unique probe is to continue exploration of atomic and nuclear forces, its operators should have bigger fluxes than are now available.
A tetrahedron model for research
Physics Today 21 (12), 32–33 (1968);
https://doi.org/10.1063/1.3034645
What course does your research take? Is it inductive, deductive, intuitive or even accidental? Build yourself a tetrahedron and find the sure route to success.
The Central Bureau for Astronomical Telegrams
Physics Today 21 (12), 36–40 (1968);
https://doi.org/10.1063/1.3034646
An international clearinghouse makes possible rapid dissemination of news about comets, novae and other celestial events when every day counts.
The science in children's books
Physics Today 21 (12), 44–48 (1968);
https://doi.org/10.1063/1.3034647
An early education in physics should be initiated by the scientist who can offer an accurate and interesting description. When he leaves his laboratory, the author should remember he is wearing a new hat.
Search and Discovery
New Upper Limit For Photon Mass
Physics Today 21 (12), 53–55 (1968);
https://doi.org/10.1063/1.3034650
New Cascade Particle Completes Octet
Physics Today 21 (12), 55 (1968);
https://doi.org/10.1063/1.3034651
State and Society
Resonances
Books
Principles of Radiation Protection: A Textbook of Health Physics
Physics Today 21 (12), 83–85 (1968);
https://doi.org/10.1063/1.3034677
Introduction to Partial Differential Equations and Boundary Value Problems
Physics Today 21 (12), 85 (1968);
https://doi.org/10.1063/1.3034678
Pugwash—The First Ten Years: History of the Conferences of Science and World Affairs
Physics Today 21 (12), 85–86 (1968);
https://doi.org/10.1063/1.3034680
