Title: A History of Light & Colour Measurement
Subjects: Colorimetrie, History, Kleuren, Radiobronnen (astronomie), Colorimetry, Radiation, Fotografie, Óptica (história), Measurement, Colorimetria (história), Photometry, Fotometria (história), Licht, Fotometrie, Teoria da luz, Light, Radiometry, Weights and Measures, Colorimétrie, Histoire, Photométrie, Radiométrie, SCIENCE, Spectroscopy & Spectrum Analysis, Farbmessung