Self-organized criticality, the spontaneous development of systems to a critical state, is the first general theory of complex systems with a firm mathematical basis. This theory describes how many seemingly desperate aspects of the world, from stock market crashes to mass extinctions, avalanches to solar flares, all share a set of simple, easily described properties. "...a'must read'...Bak writes with such ease and lucidity, and his ideas are so intriguing...essential reading for those interested in complex systems...it will reward a sufficiently skeptical reader." -NATURE "...presents the theory (self-organized criticality) in a form easily absorbed by the non-mathematically inclined reader." -BOSTON BOOK REVIEW "I picture Bak as a kind of scientific musketeer; flamboyant, touchy, full of swagger and ready to join every fray... His book is written with panache. The style is brisk, the content stimulating. I recommend it as a bracing experience." -NEW SCIENTIST
We now live on a planet that is troubled—even overworked—in ways that compel us to reckon with inherited common sense about the relationship between human labor and nonhuman nature. In Paraguay, fast-growing soy plants are displacing both prior crops and people. In Malaysia, dispossessed farmers are training captive orangutans to earn their own meals. In India, a prized dairy cow suddenly refuses to give more milk. Built from these sorts of scenes and sites, where the ultimate subjects and agents of work are ambiguous, How Nature Works develops an anthropology of labor that is sharply attuned to the irreversible effects of climate change, extinction, and deforestation. The authors of this volume push ethnographic inquiry beyond the anthropocentric documentation of human work on nature in order to develop a language for thinking about how all labor is a collective ecological act.
The second in the Reader's Digest Science series, How Nature Works is designed to open up the world of natural history to children and adults with a practical, hands-on approach to nature that involves the reader in doing experiments in order to learn. All the experiments and demostrations have been carefully planned and photographed "live" using over 700 full-color photographs. Publication date: September 1st.
In this inspiring manifesto, an internationally renowned ecologist makes a clear case for why protecting nature is our best health insurance, and why it makes economic sense.
Shaping the Planet the Power of the Atmosphere Evolution and Adaptation Reproducing to Survive the Search for Food Movement and Shelter Attack and Defense Senses and Communication the Living Environments More than 900 color illustrations 100 color photographs More than 1,000 species illustrated Extensive cross-references Glossary and extensive indexes
One of today's most accomplished biologists and gifted storytellers reveals the rules that regulate all life How does life work? How does nature produce the right numbers of zebras and lions on the African savanna, or fish in the ocean? How do our bodies produce the right numbers of cells in our organs and bloodstream? In The Serengeti Rules, award-winning biologist and author Sean Carroll tells the stories of the pioneering scientists who sought the answers to such simple yet profoundly important questions, and shows how their discoveries matter for our health and the health of the planet we depend upon. One of the most important revelations about the natural world is that everything is regulated—there are rules that regulate the amount of every molecule in our bodies and rules that govern the numbers of every animal and plant in the wild. And the most surprising revelation about the rules that regulate life at such different scales is that they are remarkably similar—there is a common underlying logic of life. Carroll recounts how our deep knowledge of the rules and logic of the human body has spurred the advent of revolutionary life-saving medicines, and makes the compelling case that it is now time to use the Serengeti Rules to heal our ailing planet. Bold and inspiring, The Serengeti Rules illuminates how life works at vastly different scales. Read it and you will never look at the world the same way again.
The extraordinary inner-workings of the world’s amazing, adaptable insects A tiny textbook to learn on your own How Insects Work goes beyond the typical field guide to show us not only what insects look like but why. Arguably the most successful land animals—still going strong after five mass extinctions—insects have evolved a spectacular array of real-life superpowers to help them thrive in virtually every environment: Bumblebees’ wingbeats leave a faint electrical signal at each flower they visit to show that the nectar’s already been taken (see page 57), and houseflies defy gravity with tiny leg hairs that stick to the smoothest wall or ceiling (see page 69). In this in-depth, photo-filled handbook, discover the ways insects are even more astounding than you know—inside and out: Evolution Exoskeleton and Body Segments Senses Circulation Digestion Respiration Reproduction Metamorphosis Movement And much, much more!
This book provides a challenging and stimulating introduction to the contemporary topics of complexity and criticality, and explores their common basis of scale invariance, a central unifying theme of the book.Criticality refers to the behaviour of extended systems at a phase transition where scale invariance prevails. The many constituent microscopic parts bring about macroscopic phenomena that cannot be understood by considering a single part alone. The phenomenology of phase transitions is introduced by considering percolation, a simple model with a purely geometrical phase transition, thus enabling the reader to become intuitively familiar with concepts such as scale invariance and renormalisation. The Ising model is then introduced, which captures a thermodynamic phase transition from a disordered to an ordered system as the temperature is lowered in zero external field. By emphasising analogies between percolation and the Ising model, the reader's intuition of phase transitions is developed so that the underlying theoretical formalism may be appreciated fully. These equilibrium systems undergo a phase transition only if an external agent finely tunes certain external parameters to particular values.Besides fractals and phase transitions, there are many examples in Nature of the emergence of such complex behaviour in slowly driven non-equilibrium systems: earthquakes in seismic systems, avalanches in granular media and rainfall in the atmosphere. A class of non-equilibrium systems, not constrained by having to tune external parameters to obtain critical behaviour, is addressed in the framework of simple models, revealing that the repeated application of simple rules may spontaneously give rise to emergent complex behaviour not encoded in the rules themselves. The common basis of complexity and criticality is identified and applied to a range of non-equilibrium systems. Finally, the reader is invited to speculate whether self-organisation in non-equilibrium systems might be a unifying concept for disparate fields such as statistical mechanics, geophysics and atmospheric physics.Visit http: //www.complexityandcriticality.com for animations for the models in the book (available for Windows and Linux), solutions to exercises, as well as a list with corrections.
Engineered by evolution to thrive in the wild A tiny textbook to learn on your own How Birds Work goes beyond the typical field guide to show us not only what birds look like but why. Why do many owls have asymmetrical ear openings? (Hint: It helps them pinpoint prey; see page 40.) And why does the Grey Heron rest on one leg at a time? (Hint: Not because it’s tired; see page 66!) Birds boast a spectacular array of adaptations suited to their incredibly diverse diets and habitats. In this in-depth handbook, discover the ways they’re even more astounding than you know—inside and out. Detailed analysis and illustrations illuminate: Skeleton Muscles Circulation Digestion Respiration Reproduction Feathers Colors and Patterns And much, much more!
Part playful poetry, part nonfiction information, this kid-friendly introduction to biomimicry highlights the remarkable ways plants and animals have helped us solve some of our toughest engineering challenges. One well-known example of biomimicry is the invention of Velcro - inspired by the sticky burrs from a plant. Discover six more ways nature did first Back matter includes a glossary and a STEM challenge activity to use at home or in the classroom.
