…also of Interest: Lifetimes, Superconductors and Space

Protons live at least ${\text{2×10}}^{28}\hspace{0.17em}\mathrm{years},$ possibly more than ${\text{8×10}}^{29}\hspace{0.17em}\mathrm{years},$ according to a recent experiment by Frederick Reines and his collaborators. A $\text{162‐}{\mathrm{m}}^2\hspace{0.17em}\mathrm{sr}$ scintillation detector in a South African mine, 3200‐meters deep, established the new lifetime limit, previously reported at ${\text{6×10}}^{27}$ to ${\text{4×10}}^{28}\hspace{0.17em}\mathrm{years}.$ The choice of lifetime depends on the decay mode that is assumed for the proton… By making a thin sandwich of superconductor, dielectric and superconductor, experimenters have raised the superconducting transition temperature that the superconductor alone would have by as much as 1.8 °K. Myron Strongin, O.F. Kammerer (Brookhaven), David Douglass Jr and Morrel Cohen (University of Chicago) think the increase may be due to pairing of electrons across the barrier… During this month Jet Propulsion Lab scientists were scheduled to measure concentrations of solar high‐energy particles encountered by Mariner 5 and Mariner 4 while the two spacecraft were in the same direct line with Earth and Sun.

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