Issues

Quantum field theory unites Bohr's complementarity principle and Einstein's relativity. Mathematical and physical consequences of the union are discussed.

Subjects from sonic boom to tidal waves occupy fluid dynamicists. When the American Physical Society held its joint meeting with the Japanese Physical Society in Hawaii, they discussed boundary‐layer flow, kinetics of dense gases and applications of their subject in contemporary engineering. They worry because study of fluids is declining even as its importance increases.

Following churchmen, lawyers and economists, scientists came to government as advisors. They have progressed from part‐time to full‐time service, and lately one has found them managing nontechnical enterprises. Perhaps technical training is suited to these jobs too.

Improvements in sources, detectors, models and data analysis have produced a flood of neutron‐cross‐section information. Drifting farther and farther apart in the flood are measurers of cross sections and designers of neutron devices. The result has been two sciences instead of one.

Pro: Physics Information Exchange—A Communication Experiment

Con: Criticism of the Proposed Physics Information Exchange

Rebuttal: Some Comments On Pasternack's Criticism