Resultados para "George" en Ciencia

Por primera vez desde el Neolítico tenemos la oportunidad de transformar no solo nuestro sistema alimentario, sino toda nuestra relación con la naturaleza. La agricultura y la ganadería son la principal causa de destrucción del medio ambiente en el mundo, pero apenas se habla de ello. Criticamos la expansión urbana, pero el sector 1 / 8 primario ocupa una superficie treinta veces mayor. Hemos arado, vallado y destinado al pastoreo grandes extensiones del planeta, talando bosques, extinguiendo la fauna autóctona y envenenando ríos y océanos para alimentarnos.

The now-classic Metaphors We Live By changed our understanding of metaphor and its role in language and the mind. Metaphor, authors George Lakoff and Mark Johnson explain, is a fundamental mechanism of mind, one that allows us to use what we know about our physical and social experience to provide understanding of countless other subjects. Because such metaphors structure our most basic understandings of our experience, they are "metaphors we live by"—metaphors that can shape our perceptions and actions without our ever noticing them.

A toxic ideology rules the world of extreme competition and individualism. It misrepresents human nature, destroying hope and common purpose. Only a positive vision can replace it, a new story that re-engages people in politics and lights a path to a better world. George Monbiot shows how new findings in psychology, neuroscience and evolutionary biology cast human nature in a radically different light: as the supreme altruists and cooperators.

Completely revised and updated to tackle today’s issues, the 10th Anniversary Edition not only explains what framing is and how it works but also reveals why, after a brief stint of winning the framing wars in the 2008 elections, the Democrats have gone back to losing them, and what can be done about it. In this powerful new volume, George Lakoff delves into the issues that will dominate the midterm elections in 2014, the coming presidential elections, and beyond.

Homo sapiens emerged as a species about 200,000 years ago and soon—with fire, simple tools, and an egalitarian social system—we inhabited every continent. But now our infinitely elaborated tools and our highly non-egalitarian social system threaten sustainability. Many at the bottom lose the desire to live, committing suicide or succumbing to drugs, alcohol, and obesity. What is Health? explains from the bottom up—molecules to society—how we reached this point.

At a time when many people around the world are living into their 10th decade, the longest longitudinal study of human development ever undertaken offers some welcome news for the new old age: Our lives continue to evolve in our later years and often become more fulfilling than before. Begun in 1938, the Grant Study of Adult Development charted the physical and emotional health of over 200 men, starting with their undergraduate days. The now-classic Adaptation to Life reported on the men's lives up to age 55 and helped us understand adult maturation.

Nel 1967 George Wald vinse il premio Nobel per la medicina grazie ai suoi lavori sulle cellule della rètina. Due anni più tardi gli fu chiesto di tenere le Massey Lectures, un ciclo di lezioni radiofoniche trasmesse ogni anno in Canada dalla Cbc che hanno ospitato personaggi come Martin Luther King, Doris Lessing, Noam Chomsky e Margaret Atwood. In quelle sei registrazioni Wald mise insieme le due grandi passioni che lo animavano. Da una parte la scienza e la ricerca, dall'altra la volontà di occuparsi dei problemi del mondo.

Vitamin C begins with scurvy, which afflicted Europe for four hundred years and killed millions. The reasons that a disease whose cure was known from the outset persisted over that time are at once baffling and familiar, and these trials eventually lead to invention of the science of epidemiology. Author Stephen M. Sagar MD then chronicles the discovery of vitamins at the beginning of the twentieth century, a story that encapsulates the rise of a scientific approach to nutrition but with surprising twists and turns.

In Regenesis, George Church and science writer Ed Regis explore the possibilities of the emerging field of synthetic biology. Synthetic biology, in which living organisms are selectively altered by modifying substantial portions of their genomes, allows for the creation of entirely new species of organisms. These technologies - far from the out-of-control nightmare depicted in science fiction - have the power to improve human and animal health, increase our intelligence, enhance our memory, and even extend our life span.

Technologically there's never been a better time to search for a new earth beyond our solar system.

Between iPods, music-blasting restaurants, earsplitting sports stadiums, and endless air and road traffic, the place for quiet in our lives grows smaller by the day. In Pursuit of Silence gives contextto our increasingly desperatesense that noise pollution is, in a very real way, an environmental catastrophe.

How big is the universe? In the early twentieth century, scientists took sides. One held that the entire universe was contained in the Milky Way galaxy. Their champion was the strong-willed astronomer Harlow Shapley. Another camp believed that the universe was so vast that the Milky Way was just one galaxy among billions—the view that would prevail, proven by the equally headstrong Edwin Hubble.

On February 20, 1962, John Glenn became a national star. That morning at Cape Canaveral, the small-town boy from Ohio took his place atop a rocket and soared into space. The Last American Hero is a stunning examination of the layers that formed the man: a hero of the Cold War, a two-time astronaut, a veteran senator, a devoted husband and father, and much more.

There are approximately 25,000 "city killer" asteroids in near-Earth orbit—and most are yet to be found. Small enough to evade detection, they are capable of large-scale destruction, and represent our greatest cosmic threat. But in September 2022, against all odds, NASA's Double Asteroid Redirection Test (DART) mission deliberately crashed a spacecraft into a carefully selected city killer, altering the asteroid's orbit. In How to Kill an Asteroid, award-winning science journalist Robin George Andrews reveals the development of the technology that made it possible

Super Volcanoes revels in the incomparable power of volcanic eruptions past and present, Earth-bound and otherwise, and explores how these eruptions reveal secrets about the worlds to which they belong. Science journalist and volcanologist Robin George Andrews describes the stunning ways in which volcanoes can sculpt the sea, land, and sky, and even influence the machinery that makes or breaks the existence of life.

The Los Angeles Times headline screamed: Rocket Scientist Killed in Pasadena Explosion. The man known as Jack Parsons, a maverick rocketeer who helped transform a derided sci-fi plotline into actuality, was at first mourned as a scientific prodigy. But reporters soon uncovered a more shocking story: Parsons had been a devotee of the city’s occult scene.

Queste 100 citazioni mirano a fornire l'accesso a un'opera o a una vita eccezionale, attraverso una selezione dei pensieri più eclatanti, in un formato accessibile a tutti. Una citazione è più di un estratto di un'affermazione, può essere un colpo di mente, una sintesi di un pensiero complesso, una massima, un'apertura a una riflessione più profonda.

North Georgia has more than forty lakes, and not one is natural. The state's controversial decision to dam the region's rivers for power and water supply changed the landscape forever.

In 1938, a young German rocket enthusiast named Wernher von Braun had dreams of building a rocket that could fly him to the moon. In Ray, North Dakota, a young farm girl named Mary Sherman was attending high school. In an age when girls rarely dreamed of a career in science, Mary wanted to be a chemist. A decade later, the dreams of these two disparate individuals would coalesce in ways neither could have imagined.

Brains Through Time examines how vertebrate nervous systems evolved in conjunction with other organ systems and the planet's ecology. Surveying an enormous range of information on genes and proteins, sensory and motor systems, central neural circuits, physiology, and animal behavior, the authors reconstruct the major changes that occurred as vertebrates emerged and then diversified.