12/26
[ stop the slideshow ]

The Spectroscope, an Instrument for Analysing Light

The Spectroscope, an Instrument for Analysing Light.jpg Comparative size of moleculesThumbnailsGutenbergComparative size of moleculesThumbnailsGutenbergComparative size of moleculesThumbnailsGutenbergComparative size of moleculesThumbnailsGutenbergComparative size of moleculesThumbnailsGutenbergComparative size of moleculesThumbnailsGutenberg

This pictorial diagram illustrates the principal of Spectrum Analysis, showing how sunlight is decomposed into its primary colours. What we call white light is composed of seven different colours. The diagram is relieved of all detail which would unduly obscure the simple process by which a ray of light is broken up by a prism into different wave-lengths. The spectrum rays have been greatly magnified.