????Discover the Secret of the Stars: What does the color of their light reveal to us?

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Aprende Ciencia en Casa

Published on Jan 3, 2025
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In this video we will analyze what light is and how we can use it to obtain information from the stars, make colored fireworks or analyze samples. Describing the techniques of atomic absorption and emission. We will also see why lanthanide glasses are transparent glasses that glow with colored light when illuminated by ultraviolet light. Chapters 0:00 Introduction 0:32 What is light? 1:49 Light vs. sound 4:52 The radiation of stars 6:29 Atomic absorption and emission 8:45 Atomic spectrometry 9:49 Atomic absorption and emission and the color of glasses References Fraunhofer lines Low-cost stellar spectroscopy: Fraunhofer lines. Josep Martí Ribas. Astronomía, nº220, 2017 pp. 32-38 Examples of absorption and emission spectra. https://www.esa.int/ESA_Multimedia/Im... _lanthanide_ glasses: Formation and UV absorption of cerium, europium and terbium ions in different valencies in glasses. H. Ebendor-Heidepriem, D. Ehrt. Optical Materials 15 (2000) pp. 7–25. 17 - Luminescent glass-ceramics and applications. Tao Hu, Zhiguo Xia. Advanced Ceramics for Energy Storage, Thermoelectrics and Photonics. (2023) pp. 431–462. Lanthanide–based luminescent hybrid silica materials prepared by sol-gel methodologies: a review. Leandro Trupp, María Claudia Marchi & Beatriz C. Barja. Journal of Sol-Gel Science and Technology 102 (2022). pp. 63–85. Fluorescence of _noble_ metals: Design strategy and recent progress of fluorescent probe for noble metal ions (Ag, Au, Pd, and Pt). Mengyao She et. to the. Coordination Chemistry Reviews. 432 (2021)

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