Book, Spectrum Analysis, 1869
When a pure metal is burned and viewed through a spectroscope (an instrument used to measure the wavelengths of light refracted or diffracted from an object) each element gives off unique spectra, a sort of color fingerprint. Spectral analysis led to the discovery of new elements, and allowed scientists to determine the composition of distant planets and stars.
It is credited
Smithsonian Libraries, QC451 .R793.
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Its dimensions are
H x W (open): 24 × 62 cm (9 7/16 × 24 7/16 in.)
This object was previously on display as a part of the exhibition Saturated: The Allure and Science of Color.