Spectral Analysis: Discovery of Rays by Joseph von Fraunhofer (1787-1826) in 1817. Anonymous Illustration from 1925. Private Collection.(Spectral analysis: discovery of rays by Joseph von Fraunhofer (1787-1826) in 1817. Anonymous illustration from 1925. Private collection.)Anonymous Anonymous |
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Undated · Engraving
· Picture ID: 916073
colour · colours · engraving · physical · physicist · color · knowledge · optical · experience · history · light · learned · bianchetticor · energy · energy |
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