Angstrom
A ten-billionth of a metre. Employed as a unit for measuring the wave lengths of light. Ten angstrom equal one millimicron. v. Wave Length.
DeVore, Nicholas. Encyclopedia of Astrology. New York: Philosophical Library, 1947.
A ten-billionth of a metre. Employed as a unit for measuring the wave lengths of light. Ten angstrom equal one millimicron. v. Wave Length.
DeVore, Nicholas. Encyclopedia of Astrology. New York: Philosophical Library, 1947.