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     * Ligne n°4 : List of light sources
     * Ligne n°8 : A video of atmospheric Lightning, which can be a spectacular source of illumination.
     * Ligne n°10 : This is a list of sources of light, including both natural and artificial sources, and both processes and devices.
     * Ligne n°12 : A typical light source emits electromagnetic radiation in the visible spectrum.
     * Ligne n°217 : * A CD spectrometer Color spectrographs of common light sources
     * Ligne n°218 : * The Double Amici Prism Hand-Held Spectroscope in Practice - Dozens of raw visible spectra of a wide variety of light sources.
     * Ligne n°220 : Retrieved from "http://en.wikipedia.org/wiki/List_of_light_sources"
     * Ligne n°221 : Categories: Light | Technology-related lists | Electronics lists | Light sources