Abstract
IN 1907 the International Solar Union (later to be embodied in the International Astronomical Union) adopted I.A. for ‘International angstrom’. In a report on series in line spectra prepared by A. Fowler for the Physical Society in 1922 the author says: “The unit of wavelength is the Ångström unit or ‘angstrom’, as it is now beginning to be called”.
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TWYMAN, F. Angstrom Units, A. or Å.?. Nature 167, 245 (1951). https://doi.org/10.1038/167245b0
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DOI: https://doi.org/10.1038/167245b0
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Angstrom (A) or Ångström (Å)?
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