Abstract
LONDON. The Physical Society, October 22.—Ernest Wilson: The corrosion products and mechanical properties of certain light aluminium alloys, as affected by atmospheric exposure. Experiments have been made upon the electrical conductivities, the corrosion products and tensile properties of high purity aluminium, and certain light aluminium alloys, which have been exposed to London atmosphere for a period of twenty-four years. The elements concerned are copper, nickel, manganese, and zinc in varying amounts up to a few per cent. There is also a note on the corrosion products of high conductivity copper.—M. C. Johnson: The distribution of intensity in a positive ray spectral line (Part 2). The distribution of velocity among the particles contributing to the ‘moving’ spectrum is compared with the distribution of velocity in positive rays measured by the electromagnetic method and with some investigations of Betschinsky and Dopel. The appearance of the many-lined spectrum of hydrogen in the positive rays, and the ratio of intensity of the ‘moving’ and ‘resting’ spectra is also considered. The inverse square law of probability of electron capture, and some consequences of the work of Wien and Riichardt, are the most likely controlling factors in the several phenomena.
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Societies and Academies. Nature 118, 754–756 (1926). https://doi.org/10.1038/118754b0
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DOI: https://doi.org/10.1038/118754b0