An angstrom (Å) is a unit of length equal to 10-10 meters or 0.1 nanometers. It is named after the Swedish physicist Anders Jonas Ångström, who first used it to measure the wavelengths of light. The ...
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.
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