Libros de ciencias, página 531 de 2702

Featuring over 1,250 species, the text details the kind of habitat the birds are found in, key identification features and notes on the songs and calls of each species. The 84 colour plates appear opposite their relevant text for quick and easy reference. Distribution maps are also included for each species.

Optic explores optical effects in contemporary graphic design.Some art forms have had more of an impact on the language of graphic design than others, but not many have helped contribute the same dynamism, energy and vitality as Op Art. Graphic designers today are rediscovering the optical art of the 1960s with delight, revelling in its experimentation and unexpected outcomes.It is the purpose of Optic to attempt a survey of optical effects in graphic design and to help distinguish their various forms.Cover features an applied spinning optical disc, with three different colourways (green, yellow and grey) - orders will be selected at random.

A transformational quest for the secrets of happy healthy whole life running that will change the way you think about growing older Colourful informative and inspiring The Race Against Time is a story of cold science and heart warming resilience of champions and also rans of sprinting centenarians and forty something super athletes barely touched by age Its heroes are experts and enthusiasts scientists coaches runners from many countries each with a different story to tell This is a book for anyone who has ever felt the healing power of running or simply wondered about the effects of ageing It is both a very personal account of one man s journey from despair to hope and an exhilarating guide explaining how timely adjustments to lifestyle and training can slow the progress of physiological decay while sheer human spirit can if you are lucky keep you running happily and healthily all the way into extreme old age

While the influence of Alexander von Humboldt 1769 1859 looms large over the natural sciences his legacy reaches far beyond the field notebooks of naturalists Von Humboldt s 1799 1804 research expedition to Central and South America with botanist Aime Bonpland not only set the course for the great scientific surveys of the nineteenth century but also served as the raw material for his many volumes works of both scientific rigor and aesthetic beauty that inspired such essayists and artists as Emerson Goethe Thoreau Poe and Frederic Edwin Church Views of Nature or Ansichten der Natur was von Humboldt s best known and most influential work and his personal favorite While the essays that comprise it are themselves remarkable as innovative early pieces of nature writing they were cited by Thoreau as a model for his own work the book s extensive endnotes incorporate some of von Humboldt s most beautiful prose and mature thinking on vegetation structure its origins in climate patterns and its implications for the arts Written for both a literary and a scientific audience Views of Nature was translated into English twice Spanish and French in the nineteenth century and it was read widely in Europe and the Americas But in contrast to many of von Humboldt

A Nobel Prize winning scientist reveals biology s most transformative achievements in decades a Double Helix for the dawning of the RNA age

Global temperatures and seawater levels rise the world s smallest porpoise species looms at the edge of extinction and a tiny emerald beetle from Japan flourishes in North America but why does it matter Who cares With this concise accessible and up to date book Charles J Krebs answers critics and enlightens students and environmental advocates alike revealing not why phenomena like these deserve our attention but why they demand it Highlighting key principles in ecology from species extinction to the sun s role in powering ecosystems each chapter introduces a general question illustrates that question with real world examples and links it to pressing ecological issues in which humans play a central role such as the spread of invasive species climate change overfishing and biodiversity conservation While other introductions to ecology are rooted in complex theory math or practice and relegate discussions of human environmental impacts and their societal implications to sidebars and appendices Why Ecology Matters interweaves these important discussions throughout It is a book rooted in our contemporary world delving into ecological issues that are perennial timeless but could not be more timely

NEW YORK TIMES BESTSELLER An exhilarating tour of humanity's next great technological achievementquantum computingwhich may supercharge artificial intelligence, solve some of humanity's biggest problems, like global warming, world hunger, and incurable disease, and eventually illuminate the deepest mysteries of science, by the bestselling author of The God Equation. Expertly describes and rectifies common misconceptions about quantum computing." Science"[Kaku's] lucid prose and thought process make abundant sense of this technological turning point. The New York Times Book ReviewThe runaway success of the microchip may finally be reaching its end. As shrinking transistors approach the size of atoms, the phenomenal growth of computational power inevitably collapses. But this change heralds the birth of a revolutionary new type of computer, one that calculates on atoms themselves.

El objectivo de este libro es profundizar en todo lo que se refiere a la topografía aplicada al replanteo en la obra civil. Para ello se estudian los métodos de replanteo y los sistemas de cálculo de las diversas alineaciones que definen una obra lineal- Gran parte del contenido esta destinado al trabajo en obras lineales, que es donde mayor dificultad puede haber en los calculos. No obstante, en el capitulo 13 se estudian aspectos geometricos de diversos tipos de obras. Se mantiene la diferenciacion entre planimetria ( capitulos 2 a 5) y altimetria ( 6 a 9), siendo los capitulos 8 y 9 los que estudian la seccion transversal para el caso de las carreteras. Se habla tambien en profundidad de las mediciones y del proyecto de una obra de ingenieria

A one-stop treasure trove from the experts at RHS that covers every aspect of gardening!Dreaming of having the perfect garden? Does it have a vegetable patch? Classic borders or flowers to attract wildlife? A picturesque garden for all to marvel at is achievable with this gardening guide giving you the vital tools to achieve whatever you desire for your dream garden.Delve into this concise and practical guide to find all the gardening ideas and advice you need to create a spectacular, thriving garden. Here's what you'll find inside:- A comprehensive guide covering everything from growing in containers to planting a garden from scratch- Fully illustrated with detailed step-by-steps and inspirational gardening ideas- Detailed beginner's guide to garden design, including step-by-step instructions for simple hard landscaping such as building a raised bed, creating a pond, or laying a patio- Covers all aspects of planting styles, including "recipes" to make the most of different types of plants- Easy-to-follow guides on how to water, feed, prune and propagate your garden- Advice on problem-solving and controlling weeds and pests- A chapter full of Plant Chooser galleries to help you grow the right plant in the right place at the right timeLearn how to plan, sow, plant, and protect your garden throughout the year with expert tips and techniques that will see your garden flourish. Discover how to design with plants by using colour and texture to create inspirational displays, and keep them at their best with jargon-free guides to pruning and preventing pests and diseases.Undertake a new endeavour of DIY landscaping projects, which include laying your own patio or lawn, or building a raised bed ready for you to grow your own fruit and vegetables. Choose from a catalogue of hundreds of different ornamental plants to find varieties that will thrive in your garden's climate and provide seasonal interest throughout the year.The Complete Gardener's Manual is the perfect all-around practical book for gardening beginners, also for those looking for a step up from a beginners' gardening book.

Are you a feline fanatic Could you tell the difference between a Housecat and an Ojos Azules Do you want to know how to keep your kitty happy and healthy The Cat Encyclopedia is a cat compendium with all the facts about cats and kittens It s packed with beautifully photographed profiles of different breeds from the Maine Coon to the Khao Manee and includes information on caring for your own cat This book explores the cat s place in cultures and includes famous cats in art and literature In this encyclopedia you will find A breed catalogue outlining all the cat breeds such as Shorthairs Exotic Shorthair Khao Manee Korat Chinese Li Hua Asian Burmilla Smoke Self Tortie Tabby and more How to care for your cat including how to Prepare for arrival essential equipment vet check ups food and feeding Grooming and hygiene and training your cat Facts images labelled diagrams and more about cats This book also offers information on the science and history of house cats Find out how cats were domesticated and developed into separate breeds and see their prominence in art literature and superstition A chapter on feline biology focuses on the anatomy of cats including the nervous system digestion and muscles and also features detailed descr

From one of the world s great science writers a book that explores the deepest principles of evolutionary history In this groundbreaking new approach to the evolution of all life Richard Dawkins shows how the body behaviour and genes of every living creature can be read as a book an archive of the worlds of its ancestors A perfectly camouflaged desert lizard has a desiccated landscape of sand and stones painted on its back Its skin can be read as a description of ancient deserts in which its ancestors survived and before that of the worlds of its more remote ancestors a genetic book of the dead But such descriptions are more than skin deep The fine chisels of Darwinian natural selection carve their way through the very warp and woof of the body into every biochemical nook and corner into every cell of every living creature A zoologist of the future presented with a hitherto unknown animal will be able to reconstruct the worlds that shaped its ancestors to read its unique book of the dead The book is filled with fascinating examples of the power of Darwinian natural selection to build exquisite perfection paradoxically accompanied by what look like gross blunders Along the way Dawkins dismantles influential criticisms of the gene s eye vie

El átomo. Electricidad dinámica. La ley de Ohm y sus aplicaciones en la corriente continua. Circuitos electricos. Magnetismo y Electromagnetismo. Generadores electricos simples. Generadores de corriente continua. Principios de la corriente alterna. Motores electricos. Transformadores, Reguladores de voltaje y Rectificadores de potencia. Instrumentos de medidas electricas. Valvulas electronicas. Circuitos de las Valvulas electronicas. Elementos de estado solido. Circuitos de estado solido. Sistemas de control automatico. Tecnologia de ordenadores. Medidas de seguridad electrica y electronica.