Cats Paws And Catapults Mechanical Worlds Of Nature And People

Download or read book Cats' Paws and Catapults: Mechanical Worlds of Nature and People written by Steven Vogel and published by W. W. Norton & Company. This book was released on 2000-01-17 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Full of ideas and well-explained principles that will bring new understanding of everyday things to both scientists and non-scientists alike."—R. McNeill Alexander, Nature Nature and humans build their devices with the same earthly materials and use them in the same air and water, pulled by the same gravity. Why, then, do their designs diverge so sharply? Humans, for instance, love right angles, while nature's angles are rarely right and usually rounded. Our technology goes around on wheels—and on rotating pulleys, gears, shafts, and cams—yet in nature only the tiny propellers of bacteria spin as true wheels. Our hinges turn because hard parts slide around each other, whereas nature's hinges (a rabbit's ear, for example) more often swing by bending flexible materials. In this marvelously surprising, witty book, Steven Vogel compares these two mechanical worlds, introduces the reader to his field of biomechanics, and explains how the nexus of physical law, size, and convenience of construction determine the designs of both people and nature. "This elegant comparison of human and biological technology will forever change the way you look at each."—Michael LaBarbera, American Scientist

Download or read book Glimpses of Creatures in Their Physical Worlds written by Steven Vogel and published by Princeton University Press. This book was released on 2009 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book investigates facets of the physical world, including the drag on small projectiles; the importance of diffusion and convection; the size-dependence of acceleration; the storage, conduction, and dissipation of heat; the relationship among pressure, flow, and choice in biological pumps; and how elongate structures tune their relative twistiness and bendiness. It considers design-determining factors and builds a bridge between the world described by physics books and the reality experienced by all creatures.

Download or read book Vital Circuits written by Steven Vogel and published by Oxford University Press, USA. This book was released on 1993 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Why does dust collect on the blades of a fan? Why should you wear support hose on a long airplane flight? Vogel ranges across physics, fluid mechanics, and chemistry to show how an enormous system of pumps and pipes works to keep the human body functioning. Anyone curious about the workings of the body will want to read this book. 64 line drawings.

Download or read book The Life of a Leaf written by Steven Vogel and published by University of Chicago Press. This book was released on 2012-10-17 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: In its essence, science is a way of looking at and thinking about the world. In The Life of a Leaf, Steven Vogel illuminates this approach, using the humble leaf as a model. Whether plant or person, every organism must contend with its immediate physical environment, a world that both limits what organisms can do and offers innumerable opportunities for evolving fascinating ways of challenging those limits. Here, Vogel explains these interactions, examining through the example of the leaf the extraordinary designs that enable life to adapt to its physical world. In Vogel’s account, the leaf serves as a biological everyman, an ordinary and ubiquitous living thing that nonetheless speaks volumes about our environment as well as its own. Thus in exploring the leaf’s world, Vogel simultaneously explores our own. A companion website with demonstrations and teaching tools can be found here: http://www.press.uchicago.edu/sites/vogel/index.html

Download or read book Prime Mover written by Steven Vogel and published by W. W. Norton & Company. This book was released on 2003 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: Whether we blink an eye or throw a ball, we are using a muscle. This text discusses how form and performance make these things happen - illustrating nature at work.

Download or read book Life's Devices written by Steven Vogel and published by Princeton University Press. This book was released on 1988-12-21 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes how living things bump up against nonbiological reality.

Download or read book Comparative Biomechanics written by Steven Vogel and published by Princeton University Press. This book was released on 2013-06-17 with total page 639 pages. Available in PDF, EPUB and Kindle. Book excerpt: The classic textbook on comparative biomechanics—revised and expanded Why do you switch from walking to running at a specific speed? Why do tall trees rarely blow over in high winds? And why does a spore ejected into air at seventy miles per hour travel only a fraction of an inch? Comparative Biomechanics is the first and only textbook that takes a comprehensive look at the mechanical aspects of life—covering animals and plants, structure and movement, and solids and fluids. An ideal entry point into the ways living creatures interact with their immediate physical world, this revised and updated edition examines how the forms and activities of animals and plants reflect the materials available to nature, considers rules for fluid flow and structural design, and explores how organisms contend with environmental forces. Drawing on physics and mechanical engineering, Steven Vogel looks at how animals swim and fly, modes of terrestrial locomotion, organism responses to winds and water currents, circulatory and suspension-feeding systems, and the relationship between size and mechanical design. He also investigates links between the properties of biological materials—such as spider silk, jellyfish jelly, and muscle—and their structural and functional roles. Early chapters and appendices introduce relevant physical variables for quantification, and problem sets are provided at the end of each chapter. Comparative Biomechanics is useful for physical scientists and engineers seeking a guide to state-of-the-art biomechanics. For a wider audience, the textbook establishes the basic biological context for applied areas—including ergonomics, orthopedics, mechanical prosthetics, kinesiology, sports medicine, and biomimetics—and provides materials for exhibit designers at science museums. Problem sets at the ends of chapters Appendices cover basic background information Updated and expanded documentation and materials Revised figures and text Increased coverage of friction, viscoelastic materials, surface tension, diverse modes of locomotion, and biomimetics