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Why Size Matters

Author : John Tyler Bonner
ISBN : 0691128502
Genre : Science
File Size : 64. 34 MB
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"John Tyler offers a completely new perspective on the role of size in biology. In his hallmark friendly style, he explores the universal impact of being the right size. By examining stories ranging from Alice in Wonderland to Gulliver's Travels, he shows that humans have always been fascinated by things big and small. Why then does size always reside on the fringes of science and never on the center stage? Why do biologists and others ponder size only when studying something else - running speed, life span, or metabolism?" "Why Size Matters, a book of big ideas in a compact size, gives size its due by presenting a overview of what we know about its role in the living world. Bonner argues that size really does matter - that it is the supreme and universal determinant of what any organism can be and do."--BOOK JACKET.

Das Universum In Dir

Author : Neil Shubin
ISBN : 9783104030906
Genre : Science
File Size : 75. 54 MB
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Die Gesamtgeschichte der Erde und des Menschen und von Allem – ungewöhnlich, unterhaltsam und packend! Seit dem Urknall haben sich Galaxien, Sonnensysteme und Planeten gebildet und im Laufe der Äonen entwickelte sich das Leben auf der Erde. Angesichts dessen könnten wir Menschen uns unbedeutend vorkommen – doch tief in uns verborgen liegt das große Wunder des Lebens: Das Universum ist in uns! Der weltbekannte Paläontologe Neil Shubin geht in seinem neuen Buch den Rätseln unseres Lebens nach: Er erzählt von der Zusammensetzung der Moleküle, findet eine Erklärung dafür, weshalb wir einen Regenbogen sehen können und zeigt, wie das Universum unseren Schlafrhythmus und die Geschwindigkeit beeinflusst, mit der sich unsere Zellen teilen. Ein wissenschaftliches Abenteuer, nach dem wir besser verstehen, wer – und was – wir sind.

The Evolution Of Complexity By Means Of Natural Selection

Author : John Tyler Bonner
ISBN : 0691084947
Genre : Philosophy
File Size : 42. 53 MB
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John Tyler Bonner makes a new attack on an old problem: the question of how progressive increase in the size and complexity of animals and plants has occurred. "How is it," he inquires, "that an egg turns into an elaborate adult? How is it that a bacterium, given many millions of years, could have evolved into an elephant?" The author argues that we can understand this progression in terms of natural selection, but that in order to do so we must consider the role of development--or more precisely the role of life cycles--in evolutionary change. In a lively writing style that will be familiar to readers of his work The Evolution of Culture in Animals (Princeton, 1980), Bonner addresses a general audience interested in biology, as well as specialists in all areas of evolutionary biology. What is novel in the approach used here is the comparison of complexity inside the organism (especially cell differentiation) with the complexity outside (that is, within an ecological community). Matters of size at both these levels are closely related to complexity. The book shows how an understanding of the grand course of evolution can come from combining our knowledge of genetics, development, ecology, and even behavior.

Paradoxien Des Digital Turn In Der Architektur 1990 2015

Author : Carin M. Schirmacher
ISBN : 9783864608872
Genre :
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Dissertation der Staatlichen Akademie der Bildenden Künste Stuttgart zur Erlangung des Grades eines Doktor-Ingenieurs

Cells To Civilizations

Author : Enrico Coen
ISBN : 9781400841653
Genre : Science
File Size : 40. 95 MB
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Cells to Civilizations is the first unified account of how life transforms itself--from the production of bacteria to the emergence of complex civilizations. What are the connections between evolving microbes, an egg that develops into an infant, and a child who learns to walk and talk? Award-winning scientist Enrico Coen synthesizes the growth of living systems and creative processes, and he reveals that the four great life transformations--evolution, development, learning, and human culture--while typically understood separately, actually all revolve around shared core principles and manifest the same fundamental recipe. Coen blends provocative discussion, the latest scientific research, and colorful examples to demonstrate the links between these critical stages in the history of life. Coen tells a story rich with genes, embryos, neurons, and fascinating discoveries. He examines the development of the zebra, the adaptations of seaweed, the cave paintings of Lascaux, and the formulations of Alan Turing. He explores how dogs make predictions, how weeds tell the time of day, and how our brains distinguish a Modigliani from a Rembrandt. Locating commonalities in important findings, Coen gives readers a deeper understanding of key transformations and provides a bold portrait for how science both frames and is framed by human culture. A compelling investigation into the relationships between our biological past and cultural progress, Cells to Civilizations presents a remarkable story of living change.

Randomness In Evolution

Author : John Tyler Bonner
ISBN : 9781400846429
Genre : Science
File Size : 48. 28 MB
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John Tyler Bonner, one of our most distinguished and insightful biologists, here challenges a central tenet of evolutionary biology. In this concise, elegantly written book, he makes the bold and provocative claim that some biological diversity may be explained by something other than natural selection. With his customary wit and accessible style, Bonner makes an argument for the underappreciated role that randomness--or chance--plays in evolution. Due to the tremendous and enduring influence of Darwin's natural selection, the importance of randomness has been to some extent overshadowed. Bonner shows how the effects of randomness differ for organisms of different sizes, and how the smaller an organism is, the more likely it is that morphological differences will be random and selection may not be involved to any degree. He traces the increase in size and complexity of organisms over geological time, and looks at the varying significance of randomness at different size levels, from microorganisms to large mammals. Bonner also discusses how sexual cycles vary depending on size and complexity, and how the trend away from randomness in higher forms has even been reversed in some social organisms. Certain to provoke lively discussion, Randomness in Evolution is a book that may fundamentally change our understanding of evolution and the history of life.

Eine Kurze Geschichte Der Menschheit

Author : Yuval Noah Harari
ISBN : 9783641104986
Genre : History
File Size : 33. 58 MB
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Krone der Schöpfung? Vor 100 000 Jahren war der Homo sapiens noch ein unbedeutendes Tier, das unauffällig in einem abgelegenen Winkel des afrikanischen Kontinents lebte. Unsere Vorfahren teilten sich den Planeten mit mindestens fünf weiteren menschlichen Spezies, und die Rolle, die sie im Ökosystem spielten, war nicht größer als die von Gorillas, Libellen oder Quallen. Vor 70 000 Jahren dann vollzog sich ein mysteriöser und rascher Wandel mit dem Homo sapiens, und es war vor allem die Beschaffenheit seines Gehirns, die ihn zum Herren des Planeten und zum Schrecken des Ökosystems werden ließ. Bis heute hat sich diese Vorherrschaft stetig zugespitzt: Der Mensch hat die Fähigkeit zu schöpferischem und zu zerstörerischem Handeln wie kein anderes Lebewesen. Anschaulich, unterhaltsam und stellenweise hochkomisch zeichnet Yuval Harari die Geschichte des Menschen nach und zeigt alle großen, aber auch alle ambivalenten Momente unserer Menschwerdung.

The Ideas Of Biology

Author : John Tyler Bonner
ISBN : 9780486150864
Genre : Science
File Size : 29. 44 MB
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Using evolution as the central theme, these concise essays explore the foundations of modern biology, focusing on heredity, embryonic development, and ultimately, relations between organisms and their environment. 24 black-and-white figures.

The Social Amoebae

Author : John Tyler Bonner
ISBN : 0691139393
Genre : Science
File Size : 27. 61 MB
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Noted biologist and author John Tyler Bonner has experimented with cellular slime molds for more than sixty years, and he has done more than anyone else to raise these peculiar collections of amoebae from a minor biological curiosity to a major model organism--one that is widely studied for clues to the development and evolution of all living things. Now, five decades after he published his first pioneering book on cellular slime molds, Bonner steps back from the proliferating and increasingly specialized knowledge about the organism to provide a broad, nontechnical picture of its whole biology, including its evolution, sociobiology, ecology, behavior, and development. The Social Amoebae draws the big lessons from decades of research, and shows how slime molds fit into and illuminate biology as a whole. Slime molds are very different from other organisms; they feed as individual amoebae before coming together to form a multicellular organism that has a remarkable ability to move and orient itself in its environment. Furthermore, these social amoebae display a sophisticated division of labor; within each organism, some cells form the stalk and others become the spores that will seed the next generation. In The Social Amoebae, Bonner examines all these parts together, giving a balanced, concise, and clear overview of slime mold biology, from molecules to cells to multicells, as he advances some unconventional and unexpected insights.

Evolution Und Entwicklung

Author : John Tyler Bonner
ISBN : 9783663019701
Genre : Science
File Size : 49. 85 MB
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Ich bin mir des vernichtenden Kommentars bewußt, der hinter den Ku lissen getuschelt wird - nämlich, daß ich wie ein Professor klinge -, aber nach all den professoralen Jahren ist es mir fast unmöglich, die Hauptbe schäftigung meines Lebens zu verbergen. Seit über vierzig Jahren habe ich den Kursus "allgemeine Biologie" für Anfänger und Fortgeschrittene Eines Tages besuchte mich eine an der Universität Princeton gelehrt. Soziologiestudentin und bat mich um ein Interview im Rahmen ihrer Diplomarbeit. Es stellte sich heraus, daß sie Lehren mit Schauspielen vergleichen wollte. Da hatte ich mehr Fragen an sie als sie an mich. Sie machte die interessante Bemerkung, daß beide, Lehrer wie Schauspieler, um ihre Wirkung auf das Publikum besorgt sind. Trotzdem haben sie ein unterschiedliches Problem; der Schauspieler gibt jedesmal die gleiche Vorstellung vor wechselnden Zuschauern, während der Lehrer Tag ein, Tag aus vor den selben Zuhörern etwas Verschiedenes bringen muß (und hoffentlich Spannendes). Manchmal hinterlassen die unmöglichsten Dinge den größten Eindruck im Kopf der Zuhörer. Ich machte diese Er fahrung, als ich die allererste Vorlesung in Princeton vor Erstsemester studenten (damals gab es keine Studentinnen) hielt. In der Mitte der Vorlesung stürzte ich vom Podium und setzte mich unsanft auf den Bo den. Es gab großen Beifall, offenbar der Höhepunkt der Lektion.

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