Libros de ciencias, página 43 de 2691

Es un análisis lógico de una serie de temas de Física teórica, la mayoría controvertidos, enfoco el análisis solo de una manera lógica y sin profundizar tecnicamente y muestor mis conclusiones.

From the slums of Cape Town to the palaces of Algiers through Pygmy villages where pineapples grow wild to the Gulf of Guinea where the sea blazes with oil flares across two continents and fourteen countries this epic journey is nothing to swallows they do it twice a year But for Horatio Clare writer and birdwatcher it is the expedition of a lifetime Along the way he discovers old empires and modern tribes a witch doctor s recipe for stewed swallow explains how to travel without money or a passport and describes a terrifying incident involving three Spanish soldiers and a tiny orange dog By trains motorbikes canoes one camel and three ships Clare follows the swallows from reed beds in South Africa where millions roost in February to a barn in Wales where a pair nest in May

A Terra é un océano esférico. A pouca terra firme que queda está poboada por dous bandos que manteñen unha tensión voraz. O medo é tan abundante como a auga salgada. O único que pode evitar a desaparicion da humanidade e a exploracion e terrificacion doutros planetas. Pero antes debe pasarse pola proba da supervivencia na Lua: o silencio, o descoñecido, a soidade.Loia chega ao Mar de Aluminio armada coa sua curiosidade e a sua capacidade para amar, arrastrando un pasado tenebroso e un futuro incerto. Os xemelgos que a acollen deberan preparala para unha nova realidade: unha verdade ditada por un Senado todopoderoso.

Com uma área cultivável de 350 milhµes de hectares,o Brasil é um dos países com as maiores e melhorescondiçµes de cultivo no mundo. Somos capazes deproduzir em larga escala e continuamente.Neste livr

The author has always been obsessed with wildlife from his childhood menagerie of exotic pets and dabbling in experimental taxidermy to his groundbreaking research into the mysterious ways of the bumblebee and his mission to protect our rarest bees This book tells the story of his passionate drive

This book presents the essential aspects of relativistic quantum field theory, with minimal use of mathematics. It covers the development of quantum field theory from the original quantization of electromagnetic field to the gauge field theory of interactions among quarks and leptons. Aimed at both scientists and non-specialists, it requires only some rudimentary knowledge of the Lagrangian and Hamiltonian formulation of Newtonian mechanics and a basic understanding of the special theory of relativity and quantum mechanics.

Bestselling popular science author Amir Aczel selects the most fascinating individuals and stories in the history of mathematics, presenting a colorful narrative that explores the quirky personalities behind some of the most profound, enduring theorems. Through such mathematical geniuses as Archimedes, Leonardo of Pisa (a.k.a. Fibonacci), Tartaglia ("the stutterer"), Descartes, Gottfried Liebniz, Carl Gauss, Joseph Fourier (Napoleon's mathematician), Evariste Galois, Georg Cantor, Ramanujan, and "Nicholas Bourbaki," we gather little known details about the alliances and rivalries that profoundly impacted the development of what the scheming doctor-turned-mathematician Geronimo Cardano called "The Great Art." This story of mathematics is not your dry "college textbook" account; tales of duels, battlefield heroism, flamboyant arrogance, pranks, secret societies, imprisonment, feuds, theft, and even some fatal errors of judgment fill these pages (clearly, genius doesn't guarantee street smarts). Ultimately, readers will come away from this book entertained, with a newfound appreciation of the tenacity, complexity, eccentricity, and brilliance of the mathematical genius.

Knisely (Bucknell University) provides students with a practical, readable resource for communicating their scientific knowledge according to the conventions in biology. This second edition has been revised to increase reader friendliness, and contains updated material on biology databases, Microsoft Word, and Excel. Visuals have been added to complement material on formatting graphs and tables, and data from actual lab exercises are presented along with explanations of ways of organizing the data. Annotation 2004 Book News, Inc., Portland, OR

Gauss's law for electric fields, Gauss's law for magnetic fields, Faraday's law, and the Ampere-Maxwell law are four of the most influential equations in science. In this guide for students, each equation is the subject of an entire chapter, with detailed, plain-language explanations of the physical meaning of each symbol in the equation, for both the integral and differential forms. The final chapter shows how Maxwell's equations may be combined to produce the wave equation, the basis for the electromagnetic theory of light. This book is a wonderful resource for undergraduate and graduate courses in electromagnetism and electromagnetics. A website hosted by the author at www.cambridge.org/9780521701471 contains interactive solutions to every problem in the text as well as audio podcasts to walk students through each chapter.

For millennia, shamans and philosophers, believers and nonbelievers, artists and scientists have tried to make sense of our existence by suggesting that everything is connected, that a mysterious Oneness binds us to everything else. People go to temples, churches, mosques, and synagogues to pray to their divine incarnation of Oneness. Following a surprisingly similar notion, scientists have long asserted that under Nature's apparent complexity there is a simpler underlying reality. In its modern incarnation, this Theory of Everything would unite the physical laws governing very large bodies (Einstein's theory of relativity) and those governing tiny ones (quantum mechanics) into a single framework. But despite the brave efforts of many powerful minds, the Theory of Everything remains elusive. It turns out that the universe is not elegant. It is gloriously messy. Overturning more than twenty-five centuries of scientific thought, award-winning physicist Marcelo Gleiser argues that this quest for a Theory of Everything is fundamentally misguided, and he explains the volcanic implications this ideological shift has for humankind. All the evidence points to a scenario in which everything emerges from fundamental imperfections, primordial asymmetries in matter and time, cataclysmic accidents in Earth's early life, and duplication errors in the genetic code. Imbalance spurs creation. Without asymmetries and imperfections, the universe would be filled with nothing but smooth radiation. A Tear at the Edge of Creation calls for nothing less than a new "humancentrism" to reflect our position in the universal order. All life, but intelligent life in particular, is a rare and precious accident. Our presence here has no meaning outside of itself, but it does have meaning. The unplanned complexity of humankind is all the more beautiful for its improbability. It's time for science to let go of the old aesthetic that labels perfection beautiful and holds that "beauty is truth." It's time to look at the evidence without centuries of monotheistic baggage. In this lucid, down-to-earth narrative, Gleiser walks us through the basic and cutting-edge science that fueled his own transformation from unifier to doubter—a fascinating scientific quest that led him to a new understanding of what it is to be human.

A bestselling author neuroscientist and computer engineer unveils a theory of intelligence that will revolutionize our understanding of the brain and the future of AI For all of neuroscience s advances we ve made little progress on its biggest question How do simple cells in the brain create intelligence Jeff Hawkins and his team discovered that the brain uses maplike structures to build a model of the world not just one model but hundreds of thousands of models of everything we know This discovery allows Hawkins to answer important questions about how we perceive the world why we have a sense of self and the origin of high level thought A Thousand Brains heralds a revolution in the understanding of intelligence It is a big think book in every sense of the word One of the Financial Times Best Books of 2021 One of Bill Gates Five Favorite Books of 2021

Un verdadero tirón de orejas culinario, escrito con naturalidad, humor y desparpajo. Mario Sánchez pone a nuestra disposición toda su experiencia y conocimiento para hablarnos de aquello que hacemos mal en casa en relacion con los alimentos, desde su conservacion hasta su manipulado y coccion. Un libro que conjuga a la perfeccion el rigor cientifico con el tono confidente de un amigo, y que es capaz de quitarnos los miedos y desmontar bulos para darnos informacion comprensible y sentido comun.