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Symmetry --- Aesthetics --- Proportion --- Symmetry. --- Geometry in nature. --- Nature

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Qu'y a-t-il de commun entre un cube d'enfant, un rayon de miel, les mosaïques de l'Alhambra, le virus du sida, la molécule de benzène et la classification des quarks ? Leur symétrie, source constante de fascination pour les mathématiciens depuis des millénaires. Au-delà des formes harmonieuses perçues par notre oeil, des structures mathématiques simples et profondes sous-tendent ces objets et tant d'autres, naturels ou artificiels, matériels ou conceptuels. Avec enthousiasme et humour, Marcus du Sautoy nous fait découvrir ce pan majeur de l'histoire des mathématiques. Il nous conte la longue quête, toujours actuelle, de ces chercheurs, de Platon à Gauss, de Kepler à Conway, souvent géniaux, parfois excentriques, qui ont découvert et étudié les groupes de symétrie, à la fois si abstraits et si présents dans la nature. Accompagnant l'auteur, mathématicien lui-même, dans ses pérégrinations professionnelles, nous découvrons ainsi de l'intérieur le fonctionnement de la communauté mathématique à l'oeuvre.

Symmetry (Mathematics) --- Geometry in nature --- Symétrie (Mathématiques) --- Géométrie dans la nature --- Symétrie (Mathématiques) --- Géométrie dans la nature

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Pattern formation (Physical sciences) --- Pattern formation (Biology) --- Geometry in nature. --- Formation des structures (sciences physiques) --- Développement des formes (biologie) --- Pure sciences. Natural sciences (general) --- Mathematics --- Développement des formes (biologie)

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After having read this book you will never see birds in the same way again. The unexpected patterns displayed by a bird’s body have been seen as bizarre events that demanded little attention or were described as ‘amazing curiosities’. None of these surprising features seem to be coincidental. Rather, they appear to be an integral part of a rigid order and a coherent geometry, which is directed by simple gene interactions and molecular cascades occurring at various cellular levels, and at different times, during the organism’s development. This novel geometry unfolds in front of your eyes, giving the body configurations another meaning. Lima-de-Faria is Professor Emeritus of Molecular Cytogenetics at Lund University, Lund, Sweden. This is his sixth book dealing with the molecular organization of the chromosome and its implications for the understanding of the mechanisms responsible for biological evolution.

Chemical bonds. --- Security Measures --- Pattern Recognition, Automated --- Biometry --- Vertebrates --- Genetics --- Biochemistry --- Biology --- Chemistry --- Organization and Administration --- Chordata --- Information Science --- Biological Science Disciplines --- Statistics as Topic --- Epidemiologic Methods --- Natural Science Disciplines --- Health Services Administration --- Animals --- Disciplines and Occupations --- Eukaryota --- Health Care --- Investigative Techniques --- Analytical, Diagnostic and Therapeutic Techniques and Equipment --- Organisms --- Biometric Identification --- Birds --- Molecular Biology --- Zoology --- Health & Biological Sciences --- Geometry in nature. --- Anatomy. --- Molecular aspects. --- Genetics. --- Aves --- Avian fauna --- Avifauna --- Wild birds --- Avian anatomy --- Bird anatomy --- Life sciences. --- Cell biology. --- Developmental biology. --- Evolutionary biology. --- Animal genetics. --- Life Sciences. --- Animal Genetics and Genomics. --- Developmental Biology. --- Evolutionary Biology. --- Cell Biology. --- Nature --- Amniotes --- Ornithology --- Evolution (Biology). --- Cytology. --- Cell biology --- Cellular biology --- Cells --- Cytologists --- Animal evolution --- Biological evolution --- Darwinism --- Evolutionary biology --- Evolutionary science --- Origin of species --- Evolution --- Biological fitness --- Homoplasy --- Natural selection --- Phylogeny --- Development (Biology) --- Growth --- Ontogeny