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'Stability'




Titre : The simple science of flight: from insects to jumbo jets Type de document : livre Auteurs : Henk Tennekes, Auteur Mention d'édition : Revised and expanded ed. Editeur : Cambridge (Mass.) : MIT Press Année de publication : 2009 Importance : 201 p. ISBN/ISSN/EAN : 978-0-262-51313-5 Prix : 26.95 USD Langues : Anglais (eng) Langues originales : Allemand (ger) Mots-clés : Fluid dynamics Airplanes Stability Birds Flat behaviour Résumé : From the smallest gnat to the largest aircraft, all things that fly obey the same aerodynamic principles. "The Simple Science of Flight" offers an introduction to the mechanics of flight and, beyond that, to the scientific attitude that finds wonder in simple calculations, forging connections between, say, the energy efficiency of a peanut butter sandwich and that of the kerosene that fuels a jumbo jet. The hero of the book is the Boeing 747, which Tennekes sees as the current pinnacle of human ingenuity in mastering the science of flight. Also covered are paper airplanes, kites, gliders, and human-powered flying machines as well as birds and insects. Tennekes explains difficult concepts like lift, drag, wing loading and cruising speed through many comparisons, anecdotes and examples. Equations are integrated into the flow of the text. Tennekes begins with a simple comparison of the relative fuel consumption of hummingbirds, cars, and airplanes, then turns to the relations between an airplane weight, its wing area and its cruising speed, showing that it is possible to collect all flying creatures and flying machines in a single flight diagram. He looks at energetics through the considerable efforts of a little 35-gram bird in a wind tunnel. There are stories on the effects of headwinds, tailwinds, and other weather conditions that both birds and planes face, on the elegance of the mechanics that makes flight possible, and on the aerodynamics of sophisticated flying toys. Tennekes concludes by comparing the Boeing 747 and the supersonic Concorde, with the former emerging as the perfect airplane for intercontinental flights: "just below the speed of sound and just above the weather". En ligne : https://mitpress.mit.edu/books/simple-science-flight-revised-and-expanded-editio [...] The simple science of flight: from insects to jumbo jets [livre] / Henk Tennekes, Auteur . - Revised and expanded ed. . - Cambridge (Mass.) : MIT Press, 2009 . - 201 p.
ISBN : 978-0-262-51313-5 : 26.95 USD
Langues : Anglais (eng) Langues originales : Allemand (ger)
Mots-clés : Fluid dynamics Airplanes Stability Birds Flat behaviour Résumé : From the smallest gnat to the largest aircraft, all things that fly obey the same aerodynamic principles. "The Simple Science of Flight" offers an introduction to the mechanics of flight and, beyond that, to the scientific attitude that finds wonder in simple calculations, forging connections between, say, the energy efficiency of a peanut butter sandwich and that of the kerosene that fuels a jumbo jet. The hero of the book is the Boeing 747, which Tennekes sees as the current pinnacle of human ingenuity in mastering the science of flight. Also covered are paper airplanes, kites, gliders, and human-powered flying machines as well as birds and insects. Tennekes explains difficult concepts like lift, drag, wing loading and cruising speed through many comparisons, anecdotes and examples. Equations are integrated into the flow of the text. Tennekes begins with a simple comparison of the relative fuel consumption of hummingbirds, cars, and airplanes, then turns to the relations between an airplane weight, its wing area and its cruising speed, showing that it is possible to collect all flying creatures and flying machines in a single flight diagram. He looks at energetics through the considerable efforts of a little 35-gram bird in a wind tunnel. There are stories on the effects of headwinds, tailwinds, and other weather conditions that both birds and planes face, on the elegance of the mechanics that makes flight possible, and on the aerodynamics of sophisticated flying toys. Tennekes concludes by comparing the Boeing 747 and the supersonic Concorde, with the former emerging as the perfect airplane for intercontinental flights: "just below the speed of sound and just above the weather". En ligne : https://mitpress.mit.edu/books/simple-science-flight-revised-and-expanded-editio [...] Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 69759 TEN_04_69759 Livre Salle des ouvrages 04_Ecologie_animale Sorti jusqu'au 25/05/2043
Titre : Robustness and evolvability in living systems Type de document : livre Auteurs : Wagner, Andreas Editeur : Princeton, New Jersey : Princeton University Press Année de publication : 2005 Collection : Princeton studies in complexity Importance : 367 p. ISBN/ISSN/EAN : 978-0-691-12240-3 Note générale : 2 ex. Langues : Anglais (eng) Mots-clés : Biological systems Molecular evolution Mutation Robust control Stability Résumé : All living things are remarkably complex, yet their DNA is unstable, undergoing countless random mutations over generations. Despite this instability, most animals do not grow two heads or die, plants continue to thrive, and bacteria continue to divide. Robustness and Evolvability in Living Systems tackles this perplexing paradox. The book explores why genetic changes do not cause organisms to fail catastrophically and how evolution shapes organisms' robustness. Andreas Wagner looks at this problem from the ground up, starting with the alphabet of DNA, the genetic code, RNA, and protein molecules, moving on to genetic networks and embryonic development, and working his way up to whole organisms. He then develops an evolutionary explanation for robustness. Wagner shows how evolution by natural selection preferentially finds and favors robust solutions to the problems organisms face in surviving and reproducing. Such robustness, he argues, also enhances the potential for future evolutionary innovation. Wagner also argues that robustness has less to do with organisms having plenty of spare parts (the redundancy theory that has been popular) and more to do with the reality that mutations can change organisms in ways that do not substantively affect their fitness. Unparalleled in its field, this book offers the most detailed analysis available of all facets of robustness within organisms. It will appeal not only to biologists but also to engineers interested in the design of robust systems and to social scientists concerned with robustness in human communities and populations. [Résumé éditeur] En ligne : http://www.loc.gov/catdir/enhancements/fy0654/2004054936-t.html Robustness and evolvability in living systems [livre] / Wagner, Andreas . - Princeton, New Jersey : Princeton University Press, 2005 . - 367 p.. - (Princeton studies in complexity) .
ISBN : 978-0-691-12240-3
2 ex.
Langues : Anglais (eng)
Mots-clés : Biological systems Molecular evolution Mutation Robust control Stability Résumé : All living things are remarkably complex, yet their DNA is unstable, undergoing countless random mutations over generations. Despite this instability, most animals do not grow two heads or die, plants continue to thrive, and bacteria continue to divide. Robustness and Evolvability in Living Systems tackles this perplexing paradox. The book explores why genetic changes do not cause organisms to fail catastrophically and how evolution shapes organisms' robustness. Andreas Wagner looks at this problem from the ground up, starting with the alphabet of DNA, the genetic code, RNA, and protein molecules, moving on to genetic networks and embryonic development, and working his way up to whole organisms. He then develops an evolutionary explanation for robustness. Wagner shows how evolution by natural selection preferentially finds and favors robust solutions to the problems organisms face in surviving and reproducing. Such robustness, he argues, also enhances the potential for future evolutionary innovation. Wagner also argues that robustness has less to do with organisms having plenty of spare parts (the redundancy theory that has been popular) and more to do with the reality that mutations can change organisms in ways that do not substantively affect their fitness. Unparalleled in its field, this book offers the most detailed analysis available of all facets of robustness within organisms. It will appeal not only to biologists but also to engineers interested in the design of robust systems and to social scientists concerned with robustness in human communities and populations. [Résumé éditeur] En ligne : http://www.loc.gov/catdir/enhancements/fy0654/2004054936-t.html Exemplaires(2)
Code-barres Cote Support Localisation Section Disponibilité 67553 WAG_09_67553 Livre Salle des ouvrages 09_Génétique_Evolution Disponible 68263 WAG_09_68263 Livre Salle des ouvrages 09_Génétique_Evolution Sorti jusqu'au 25/05/2043
Titre : Robustness and evolvability in living systems Type de document : livre Auteurs : Wagner, Andreas Editeur : Princeton, New Jersey : Princeton University Press Année de publication : 2005 Collection : Princeton studies in complexity Importance : 367 p. ISBN/ISSN/EAN : 978-0-691-13404-8 Langues : Anglais (eng) Mots-clés : Biological systems Genomic Instability Molecular evolution Mutation (Biology) Robust control Stability Résumé : All living things are remarkably complex, yet their DNA is unstable, undergoing countless random mutations over generations. Despite this instability, most animals do not grow two heads or die, plants continue to thrive, and bacteria continue to divide. Robustness and Evolvability in Living Systems tackles this perplexing paradox. The book explores why genetic changes do not cause organisms to fail catastrophically and how evolution shapes organisms' robustness. Andreas Wagner looks at this problem from the ground up, starting with the alphabet of DNA, the genetic code, RNA, and protein molecules, moving on to genetic networks and embryonic development, and working his way up to whole organisms. He then develops an evolutionary explanation for robustness. Wagner shows how evolution by natural selection preferentially finds and favors robust solutions to the problems organisms face in surviving and reproducing. Such robustness, he argues, also enhances the potential for future evolutionary innovation. Wagner also argues that robustness has less to do with organisms having plenty of spare parts (the redundancy theory that has been popular) and more to do with the reality that mutations can change organisms in ways that do not substantively affect their fitness. Unparalleled in its field, this book offers the most detailed analysis available of all facets of robustness within organisms. It will appeal not only to biologists but also to engineers interested in the design of robust systems and to social scientists concerned with robustness in human communities and populations. En ligne : http://www.loc.gov/catdir/enhancements/fy0654/2004054936-d.html Robustness and evolvability in living systems [livre] / Wagner, Andreas . - Princeton, New Jersey : Princeton University Press, 2005 . - 367 p.. - (Princeton studies in complexity) .
ISBN : 978-0-691-13404-8
Langues : Anglais (eng)
Mots-clés : Biological systems Genomic Instability Molecular evolution Mutation (Biology) Robust control Stability Résumé : All living things are remarkably complex, yet their DNA is unstable, undergoing countless random mutations over generations. Despite this instability, most animals do not grow two heads or die, plants continue to thrive, and bacteria continue to divide. Robustness and Evolvability in Living Systems tackles this perplexing paradox. The book explores why genetic changes do not cause organisms to fail catastrophically and how evolution shapes organisms' robustness. Andreas Wagner looks at this problem from the ground up, starting with the alphabet of DNA, the genetic code, RNA, and protein molecules, moving on to genetic networks and embryonic development, and working his way up to whole organisms. He then develops an evolutionary explanation for robustness. Wagner shows how evolution by natural selection preferentially finds and favors robust solutions to the problems organisms face in surviving and reproducing. Such robustness, he argues, also enhances the potential for future evolutionary innovation. Wagner also argues that robustness has less to do with organisms having plenty of spare parts (the redundancy theory that has been popular) and more to do with the reality that mutations can change organisms in ways that do not substantively affect their fitness. Unparalleled in its field, this book offers the most detailed analysis available of all facets of robustness within organisms. It will appeal not only to biologists but also to engineers interested in the design of robust systems and to social scientists concerned with robustness in human communities and populations. En ligne : http://www.loc.gov/catdir/enhancements/fy0654/2004054936-d.html Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 68458 WAG_09_68458 Livre Salle des ouvrages 09_Génétique_Evolution Sorti jusqu'au 25/05/2043