TY - ART DB - Science History Institute DP - Science History Institute M2 - Courtesy of Science History Institute. Rights: Creative Commons Attribution 4.0 International License TI - Quartz Spectrograph ID - br86b4223 AU - Science History Institute DA - 2017/// YR - 2017 M3 - photograph UR - https://digital.sciencehistory.org/works/br86b4223 AB - A spectrograph is an instrument used to obtain and record a light spectrum—it splits the light from an object into its component wavelengths so that it can be analysed. The spectral lines of a chemical element is produced and photographed by the spectrograph. When the photographic plate is developed, the spectral lines are precisely measured to determine the composition of the chemical element. KW - Adam Hilger Ltd. KW - Spectrograph KW - Optics LA - ER -