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Physics --- Science and state --- National socialism. --- Physicists
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Astronomers study the oldest observable stars in the universe in much the same way archaeologists study ancient artifacts on Earth. Anna Frebel takes readers into the far-flung depths of space and time to provide a gripping firsthand account of the cutting-edge science of stellar archaeology. Weaving the latest findings in astronomy with her own compelling insights as one of the world's leading researchers in the field, she explains how sections of the night sky are "excavated" in the hunt for these extremely rare, 13-billion-year-old relic stars and how this astonishing quest is revealing tantalizing new details about the origins and evolution of the cosmos. Along the way, Frebel recounts her own stories of discovery, offering an insider's perspective on this exciting frontier of science.
Early stars. --- Stars --- Galaxies --- Cosmochronology. --- Étoiles des premiers types. --- Étoiles --- Cosmochronologie. --- Voie lactée. --- Age. --- Formation. --- Milky Way.
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This study, the first comprehensive account of Erich Hückel's career, examines his scientific work as well as his importance for the emergence of quantum chemistry as an independent discipline in Germany during the 1930s. Hückel began his career by studying quantum physics in Göttingen, but his background in chemistry led him to take up pioneering research on the physics of chemical bonding. Drawing on a variety of sources, Andreas Karachalios offers a probing account of fast-breaking developments in quantum theory that paved the way for Hückel's research. In Göttingen and later in Leipzig, Hückel interacted with leading figures not only in quantum physics and physical chemistry but also with others in nearby fields, including organic chemistry and mathematics. During his later career in Marburg, Hückel clashed with Linus Pauling over the properties of the benzine molecule. In order to appreciate this controversy, Karachalios gives a brief account of the mathematical formalism of spin invariants, with both Hückel and Pauling used in their analyses, though with different interpretations. This serves not only to clarify their differences but also to illustrate the importance of the quantum-mechanical theory of resonance for chemistry at this time.
Philosophy of science --- Physics --- Quantum chemistry --- Hückel, Erich --- Physicists --- Quantum theory --- Quantum dynamics --- Quantum mechanics --- Quantum physics --- Chemistry, Quantum --- History --- Hückel, Erich, --- Physical scientists --- Mechanics --- Thermodynamics --- Chemistry, Physical and theoretical --- Excited state chemistry
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Children's encyclopedias and dictionaries, German --- Encyclopedias and dictionaries, German --- Enlightenment --- Geschiedenis van opvoeding en onderwijs --- Material culture --- Picture dictionaries, German --- Visual communication --- History and criticism. --- handboeken en inleidingen. --- History --- History.
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Children's encyclopedias and dictionaries, German --- Encyclopedias and dictionaries, German --- Enlightenment --- Material culture --- Picture dictionaries, German --- Visual communication --- History and criticism --- History --- Weltkasten --- History. --- Germany --- Intellectual life
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