Mostrando títulos en Expediciones y Descubrimientos

The story of the world's largest, longest, and best-financed scientific expedition of all time, triumphantly successful, gruesomely tragic, and never before fully told. The immense 18th-century scientific journey, variously known as the Second Kamchatka Expedition or the Great Northern Expedition, from St. Petersburg across Siberia to the coast of North America, involved over 3,000 people and cost Peter the Great over one-sixth of his empire's annual revenue.

The name Captain James Cook is one of the most recognisable in Australian history - an almost mythic figure who is often discussed, celebrated, reviled and debated. But who was the real James Cook? This Yorkshire farm boy would go on to become the foremost mariner, scientist, navigator and cartographer of his era, and to personally map a third of the globe. His great voyages of discovery were incredible feats of seamanship and navigation.

Between 1539 and 1542, the Spanish explorer Hernando de Soto led a small army on an expedition of almost four thousand miles across Southeastern America. De Soto's path had been one of history's most intriguing mysteries until the publication of Knights of Spain, Warriors of the Sun. Using a new route reconstruction, anthropologist Charles Hudson maps the story of the de Soto expedition, tying the route to a number of specific archaeological sites.

At stake in 1896 was the new idea that some landscapes should be collectively, permanently owned by a democratic government. Although many people today think of public lands as an American birthright, their very existence was then in doubt and dependent on a merger of the talents of these two men. Natural Rivals examines a time of environmental threat and political dysfunction not unlike our own and reveals the complex dynamic that gave birth to America’s rich public lands legacy.

More than 200 million years ago, geological forces split apart the continents. Isolated from each other, the two halves of the world developed radically different suites of plants and animals. When Christopher Columbus set foot in the Americas, he ended that separation at a stroke. Driven by the economic goal of establishing trade with China, he accidentally set off an ecological convulsion as European vessels carried thousands of species to new homes across the oceans.

When gold was first discovered on the American River above Sutter's Fort in January 1848, California was sparsely populated frontier territory not yet ceded to the United States from Mexixo. The discovery triggered a massive influx as hundreds of thousands of people scrambled to California in search of riches, braving dangerous journeys across the Pacific, around Cape Horn, and through the Isthmus of Panama, as well as across America's vast, unsettled wilderness. Cities sprang up overnight, in response to the demand for supplies and services of all kinds.

You'll be awe-inspired by the heroic efforts of the crew of the Endurance, a ship that battled its way for six weeks through thousands of miles of pack ice while ironically only a day's sail from its destination.

The Voyage of the Beagle - or, to give it its full title, Journal of researches into the Natural History and Geology of the Countries visited during the Voyage round the World of H.M.S. Beagle under command of Captain FitzRoy, R.N. - is much more than merely an account of Darwin's scientific observations in his 1831 - 36 travels across the globe: it is fine travel writing in its own right.

Anyone who has heard of Jon Krakauer’s Into Thin Air or has seen a recent photo of climbers standing in line to get to the top of Everest may think they have a sense of what the world’s highest mountain is like. It’s an extreme landscape where bad weather and incredible altitude can kill; an overcrowded, trashed-out recreation destination; and a place where the rich exploit local Sherpas while padding their egos—and social media feeds.

Historian William Sheehan and astronomer and planetary scientist Jim Bell combine their talents to tell a unique story of what we've learned by studying Mars through evolving technologies. What the eye sees as a mysterious red dot wandering through the sky becomes a blurry mirage of apparent seas, continents, and canals as viewed through Earth-based telescopes.

Little more than 100 years ago, maps of the world still boasted white space: places where no human had ever trod. Within a few short decades the most hostile of the world's environments had all been conquered. Likewise, in the 20th century, medicine transformed human life. Doctors took what was routinely fatal and made it survivable. As modernity brought us ever more into different kinds of extremes, doctors pushed the bounds of medical advances and human endurance. Extreme exploration challenged the body in ways that only the vanguard of science could answer.

The “mountain men” were the hunters and trappers who fiercely strode the Rocky Mountains in the early to mid-1800s. They braved the elements in search of the skins of beavers and other wild animals, to sell or barter for goods. The lifestyle of the mountain men could be harsh, existing as they did among animals, and spending most of their days and nights living and camping out in the great unexplored wilds of the Rockies.

A story of defiance and determination by a controversial scientist, this is Lee Berger's own take on finding Homo naledi, an all-new species on the human family tree and one of the greatest discoveries of the 21st century. In 2013, Lee Berger, a National Geographic explorer-in-residence, heard of a cache of bones in a hard-to-reach underground cave in South Africa. He put out a call around the world for petite collaborators - men and women small and adventurous enough to be able to squeeze through eight-inch tunnels to reach a sunless cave forty feet underground. It worked.

"You seriously mean to tell me that the ship is doomed?" asked Frank Worsley, commander of the Endurance, stuck impassably in Antarctic ice packs. "What the ice gets," replied Sir Ernest Shackleton, the expedition's unflappable leader, "the ice keeps." It did not, however, get the ship's twenty-five crew members, all of whom survived an eight-hundred-mile voyage across sea, land, and ice to South Georgia, the nearest inhabited island.

As the 50th anniversary of the first lunar landing approaches, the award-winning historian and perennial New York Times best-selling author takes a fresh look at the space program, President John F. Kennedy’s inspiring challenge, and America’s race to the moon.

Since the days of conquistador Hernán Cortés, rumors have circulated about a lost city of immense wealth hidden somewhere in the Honduran interior, called the White City or the Lost City of the Monkey God. Indigenous tribes speak of ancestors who fled there to escape the Spanish invaders, and they warn that anyone who enters this sacred city will fall ill and die.

It was November 1806. The explorers had gone without food for one day, then two. Their leader, not yet thirty, drove on, determined to ascend the great mountain. Waist deep in snow, he reluctantly turned back. But Zebulon Pike had not been defeated. His name remained on the unclimbed peak-and new adventures lay ahead of him and his republic. In Citizen Explorer, historian Jared Orsi provides the first modern biography of this soldier and explorer, who rivaled contemporaries Meriwether Lewis and William Clark.

On June 6, 1761, the world paused to observe a momentous occasion: the first transit of Venus between the earth and the sun in more than a century. Through that observation, astronomers could calculate the size of the solar system - but only if they could compile data from many different points of the globe, all recorded during the short period of the transit. Fortunately, transits of Venus occur in pairs: eight years later, the scientists would have another opportunity to succeed.

When we think about the origins of modern science we usually begin in Europe. We remember the great minds of Nicolaus Copernicus, Isaac Newton, Charles Darwin, and Albert Einstein. But the history of science is not, and has never been, a uniquely European endeavor. Copernicus relied on mathematical techniques that came from Arabic and Persian texts. Newton’s laws of motion used astronomical observations made in Asia and Africa. When Darwin was writing On the Origin of Species, he consulted a sixteenth-century Chinese encyclopedia.

Infinite Powers recounts how calculus tantalized and thrilled its inventors, starting with its first glimmers in ancient Greece and bringing us right up to the discovery of gravitational waves. Strogatz reveals how this form of math rose to the challenges of each age: how to determine the area of a circle with only sand and a stick; how to explain why Mars goes "backwards" sometimes; how to turn the tide in the fight against AIDS.