angstrom :

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ang struhm

  • n  a metric unit of length equal to one ten billionth of a meter (or 0.0001 micron); used to specify wavelengths of electromagnetic radiation

  • Using film treated with neocyanine the solar spectrum has been photographed up to 11,634 angstrom units, far beyond red at 8,000 angstrom units, the longest visible wavelength.
  • The visible spectrum ranges from 8,000 to 4,000 angstrom units.
  • Its field of operation extends on both sides of the visible light spectrum up to 10,000 angstrom units on the infra-red range, down to 1,000 on the ultra-violet.
News & Articles


  • Steven M Block in EurekAlert (press release)
    In the Nature experiment, we carried out the highest-resolution measurement ever made of an individual protein,says Steven Block, professor of applied physics and of biological sciences. "We obtained measurements accurate to one angstrom,...

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