Resultados para "The Past" en Ciencia

The fascinating group of animals called dinosaurs became extinct some 65 million years ago (except for their feathered descendants). In their place evolved an enormous variety of land creatures, especially mammals, which in their way were every bit as remarkable as their Mesozoic cousins. The Age of Mammals, the Cenozoic Era, has never had its Jurassic Park, but it was an amazing time in earth's history, populated by a wonderful assortment of bizarre animals. The rapid evolution of thousands of species of mammals brought forth many incredible creatures—including our own ancestors.

It is rare for life to change Earth, yet three organisms have profoundly transformed our planet over the long course of its history. Elemental reveals how microbes, plants, and people used the fundamental building blocks of life to alter the climate, and with it, the trajectory of life on Earth in the past, present, and future. Taking listeners from the deep geologic past to our current era of human dominance, Stephen Porder focuses on five of life’s essential elements—hydrogen, oxygen, carbon, nitrogen, and phosphorus.

In Origins, Frank H. T. Rhodes explores the origin and evolution of living things, the changing environments in which they have developed, and the challenges we now face on an increasingly crowded and polluted planet. Rhodes argues that the future well-being of our burgeoning population depends in no small part on our understanding of life's past, its long and slow development, and its intricate interdependencies.

Bears have always held a central place in our collective memory, from Indigenous folklore and Greek mythology to nineteenth-century fairytales and the modern toy shop. But as humans and bears come into ever-closer contact, our relationship nears a tipping point. Today, most of the eight remaining bear species are threatened with extinction. Some, such as the panda bear and the polar bear, are icons of the natural world; others, such as the spectacled bear and the sloth bear, are far less known.

The characters in Tasting the Past include a young Swiss scientist who set out to decode the DNA of every single wine grape in the world; Middle Eastern researchers who seek to discover the wines that King David drank; and a University of Pennsylvania academic who has spent decades analyzing wine remains. The science illuminates wine in ways no critic can, and demolishes some of the most sacred dogmas of the industry: well-known French grapes aren't especially noble.

Humans depend on soil for 95 percent of global food production, yet let it erode at unsustainable rates. In the United States, China, and India, vast tracts of farmland will be barren of topsoil within this century. The combination of intensifying erosion caused by climate change and the increasing food needs of a growing world population is creating a desperate need for solutions to this crisis.

All tequilas are mezcals; all mezcals are made from agaves; and every bottle of mezcal is the remarkable result of collaborations among agave entrepreneurs, botanists, distillers, beverage distributors, bartenders, and more. How these groups come together in this "spirits world" is the subject of this fascinating new book by the acclaimed ethnobotanist Gary Paul Nabhan and the pioneering restauranteur David Suro Piñera.

Jeffrey W. Martz of the Denver Museum of Nature and Science is widely renowned for his expertise in the field of paleontology, a science that lies at the crossroads of biology and geology. Paleontologists seek to unearth and re-create life hundreds of millions of years old, and the work of paleontologists offers us detailed glimpses of the prehistoric world. These fascinating lectures delve into the techniques and processes of paleontologists while providing a better understanding of this often misunderstood science.

Renowned professor Michael B. McElroy leads a comprehensive examination of energy, including its history, use in the world today, and environmental consequences. Whether discussing the "oil shocks" of the 1970s, the current reliance on imported oil, or the growing buildup of carbon dioxide in the planet's atmosphere, it is clear that energy represents one of the world's most daunting challenges.

More than 10,000 years ago spectacularly large mammals roamed the pampas and jungles of South America. This book tells the story of these great beasts during and just after the Pleistocene, the geological epoch marked by the great ice ages. Megafauna describes the history and way of life of these animals, their comings and goings, and what befell them at the beginning of the modern era and the arrival of humans.

At stake in the "Science Wars" that have raged in academe and in the media is nothing less than the standing of science in our culture. One side argues that science is a "social construct," that it does not discover facts about the world, but rather constructs artifacts disguised as objective truths. This view threatens the authority of science and rejects science's claims to objectivity, rationality, and disinterested inquiry. Drawing Out Leviathan examines this argument in the light of some major debates about dinosaurs.

In the 19th and early 20th centuries, North American and European governments generously funded the discoveries of such famous paleontologists and geologists as Henry de la Beche, William Buckland, Richard Owen, Thomas Hawkins, Edward Drinker Cope, O. C. Marsh, and Charles W. Gilmore. In this book, Jane Davidson explores the motivation behind this rush to fund exploration, arguing that eagerness to discover strategic resources like coal deposits was further fueled by patrons who had a genuine passion for paleontology and the fascinating creatures that were being unearthed.

One woman's enlightening trek through the natural histories, cultural stories, and present perils of thirteen national monuments.

This volume, aimed at the general audience, presents life and times of the amazing animals that inhabited Earth more than 500 million years ago. The Cambrian Period was a critical time in Earth's history. During this immense span of time nearly every modern group of animals appeared. Although life had been around for more than 2 million millennia, Cambrian rocks preserve the record of the first appearance of complex animals with eyes, protective skeletons, antennae, and complex ecologies.

A quixotic journey through London's past, Mudlark plumbs the banks of the Thames to reveal the stories hidden behind the archaeological remnants of an ancient city. Long heralded as a city treasure herself, expert "mudlarker" Lara Maiklem is uniquely trained in the art of seeking. Tirelessly trekking across miles of the Thames' muddy shores, where others only see the detritus of city life, Maiklem unearths evidence of England's captivating, if sometimes murky, history - with some objects dating back to 43 AD, when London was but an outpost of the Roman Empire.

It has been argued that science fiction (SF) gives a kind of weather forecast - not the telling of a fortune but rather the rough feeling of what the future might be like. The intention in this audiobook is to consider some of these bygone forecasts made by SF and to use this as a prism through which to view current developments in science and technology.

Over the course of 14 billion years, humanity has gained the ability not only to imagine the future, but to design and engineer it. Entertaining and profound, Future Rising by Dr Andrew Maynard, provides a highly original perspective on our relationship with the future. Written to be easy to pick up and hard to stop listening to, Future Rising starts at the big bang and traces a pathway along the emergence of intelligent life, through what makes humans uniquely capable of creating different futures, to the profound responsibilities that this comes with.

Since its inception, however, America’s public land system has been embroiled in controversy - caught in the push and pull between the desire to develop the valuable resources the land holds or conserve them. Alarmed by rising tensions over the use of these lands, hunter, angler, and outdoor enthusiast Mark Kenyon set out to explore the spaces involved in this heated debate, and learn firsthand how they came to be and what their future might hold.

This audiobook explores how the discoveries within the Solar System and of exoplanets far beyond it come together to help us understand the habitability of Earth, and how these findings guide the search for exoplanets that could support life. The author highlights how, within two decades of the discovery of the first planets outside the Solar System in the 1990s, scientists concluded that planets are so common that most stars are orbited by them. The lives of exoplanets and their stars are inextricably interwoven.

With the lucid verve and solid scientific grounding of an Oliver Sacks or Malcolm Gladwell, Dr. Brian Boxer Wachler guides listeners on a fascinating tour of the bedrock of our existence - the way our senses perceive everything and everyone in the world around us. Why does one person see Jesus in a shower curtain, get a "bad feeling" about someone they've just met, or hear a conversation so differently than the other person? Boxer Wachler describes some of the mysterious medical conditions that cause non-psychiatric hallucinations and neurological mix-ups.