Alexander von Humboldt (1769-1859) was an intrepid explorer and the most famous scientist of his age. His restless life was packed with adventure and discovery, whether climbing the highest volcanoes in the world or racing through anthrax-infested Siberia. He came up with a radical vision of nature, that it was a complex and interconnected global force and did not exist for man's use alone. Ironically, his ideas have become so accepted and widespread that he has been nearly forgotten.

When did we begin to be as self-centered as we are today? At what point did we expect to have the right to determine our own lives? When did we first ask the question, how can I be free? It all began in the 1790s in a quiet university town in Germany when a group of playwrights, poets, and writers put the self at center stage in their thinking, writing, and their lives.

From the author of the acclaimed The Brother Gardeners, a fascinating look at the founding fathers from the unique and intimate perspective of their lives as gardeners, plantsmen, and farmers. For the founding fathers, gardening, agriculture, and botany were elemental passions, as deeply ingrained in their characters as their belief in liberty for the nation they were creating. These stories reveal a guiding but previously overlooked ideology of the American Revolution.

In 1714, England's Parliament offered a huge reward to anyone whose method of measuring longitude could be proven successful. The scientific establishment--from Galileo to Sir Isaac Newton--had mapped the heavens in its certainty of a celestial answer. In stark contrast, one man, John Harrison, dared to imagine a mechanical solution--a clock that would keep precise time at sea, something no clock had been able to do on land. And the race was on....

Chemistry and Our Universe: How It All Works is your in-depth introduction to this vital field, taught through 60 engaging half-hour lectures that are suitable for any background or none at all. Covering a year’s worth of introductory general chemistry at the college level, plus intriguing topics that are rarely discussed in the classroom, this amazingly comprehensive course requires nothing more advanced than high-school math. Your guide is Professor Ron B. Davis, Jr., a research chemist and award-winning teacher at Georgetown University.

We humans are the inheritors of a dynasty that has reigned over the planet for nearly 66 million years, through fiery cataclysm and ice ages: the mammals. Our lineage includes saber-toothed tigers, woolly mammoths, armadillos the size of a car, cave bears three times the weight of a grizzly, clever scurriers that outlasted Tyrannosaurus rex, and even other types of humans, like Neanderthals.

In the popular imagination, superhuman artificial intelligence is an approaching tidal wave that threatens not just jobs and human relationships, but civilization itself. Conflict between humans and machines is seen as inevitable and its outcome all too predictable. In this groundbreaking audiobook, distinguished AI researcher Stuart Russell argues that this scenario can be avoided, but only if we rethink AI from the ground up. Russell begins by exploring the idea of intelligence in humans and in machines.

On a cool June evening in 2009, after performing a concert at London's Royal Academy of Music, 20-year-old American flautist Edwin Rist boarded a train for a suburban outpost of the British Museum of Natural History. Home to one of the largest ornithological collections in the world, the Tring museum was full of rare bird specimens whose gorgeous feathers were worth staggering amounts of money to the men who shared Edwin's obsession: the Victorian art of salmon fly-tying. Once inside the museum, the champion fly-tier grabbed hundreds of bird skins - some collected 150 years earlier.

In August 1897, the young Belgian commandant Adrien de Gerlache set sail for a three-year expedition aboard the good ship Belgica with dreams of glory. His destination was the uncharted end of the earth: the icy continent of Antarctica. But de Gerlache’s plans to be first to the magnetic South Pole would swiftly go awry. After a series of costly setbacks, the commandant faced two bad options: turn back in defeat and spare his men the devastating Antarctic winter, or recklessly chase fame by sailing deeper into the freezing waters.

Space is a world devoid of the things we need to live and thrive: air, gravity, hot showers, fresh produce, privacy, beer. Space exploration is in some ways an exploration of what it means to be human. How much can a person give up? How much weirdness can they take? What happens to you when you can’t walk for a year? Have sex? Smell flowers? What happens if you vomit in your helmet during a space walk? Is it possible for the human body to survive a bailout at 17,000 miles per hour?

The legendary annihilation in 1883 of the volcano-island of Krakatoa - the name has since become a byword for a cataclysmic disaster - was followed by an immense tsunami that killed nearly 40,000 people. Beyond the purely physical horrors of an event that has only very recently been properly understood, the eruption changed the world in more ways than could possibly be imagined. Dust swirled round die planet for years, causing temperatures to plummet and sunsets to turn vivid with lurid and unsettling displays of light.

Dylan, who began working on the book in 2010, offers his insight into the nature of popular music. He writes over sixty essays focusing on songs by other artists, spanning from Stephen Foster to Elvis Costello, and in between ranging from Hank Williams to Nina Simone. He analyzes what he calls the trap of easy rhymes, breaks down how the addition of a single syllable can diminish a song, and even explains how bluegrass relates to heavy metal. These essays are written in Dylan’s unique prose. And while ostensibly about music, they are really meditations on the human condition.

April 25, 1986 in Chernobyl was a turning point in world history. The disaster not only changed the world’s perception of nuclear power and the science that spawned it, but also our understanding of the planet’s delicate ecology. With the images of the abandoned homes and playgrounds beyond the barbed wire of the 30-kilometer Exclusion Zone, the rusting graveyards of contaminated trucks and helicopters, the farmland lashed with black rain, the event fixed for all time the notion of radiation as an invisible killer.

This story casts penetrating light on how struggles in Europe and Asia merged into a tightly entwined global war. It features not just battles, but also the sweeping political, economic, and social effects of the war, and are graced with a rich tapestry of individual characters from top-tier political and military figures down to ordinary servicemen, as well as the accounts of civilians of all races and ages.

The Ministry for the Future is a masterpiece of the imagination, using fictional eyewitness accounts to tell the story of how climate change will affect us all. Its setting is not a desolate, post-apocalyptic world, but a future that is almost upon us - and in which we might just overcome the extraordinary challenges we face.

In 1714, England's Parliament offered a huge reward to anyone whose method of measuring longitude could be proven successful. The scientific establishment--from Galileo to Sir Isaac Newton--had mapped the heavens in its certainty of a celestial answer. In stark contrast, one man, John Harrison, dared to imagine a mechanical solution--a clock that would keep precise time at sea, something no clock had been able to do on land. And the race was on....

America's first frontier was not the West; it was the sea, and no one writes more eloquently about that watery wilderness than Nathaniel Philbrick. In his best-selling In the Heart of the Sea, Philbrick probed the nightmarish dangers of the vast Pacific. Now, in an epic sea adventure, he writes about one of the most ambitious voyages of discovery the Western world has ever seen - the US Exploring Expedition of 1838-1842.

Barrow's Boys is a spellbinding account of perilous journeys to uncharted areas under the most challenging conditions. Fergus Fleming captures the passion for exploration that led a band of men into situations that would humble today's bravest adventurers.

Michael Palin brings the fascinating story of the Erebus and its occupants to life, from its construction as a bomb vessel in 1826 through the flagship years of James Clark Ross’s Antarctic expedition and finally to Sir John Franklin’s quest for the holy grail of navigation - a route through the Northwest Passage, where the ship disappeared into the depths of the sea for more than 150 years. It was rediscovered under the arctic waters in 2014.

The enthralling and often harrowing history of the adventurers who searched for the Northwest Passage, the holy grail of 19th-century British exploration. After the triumphant end of the Napoleonic Wars in 1815, the British took it upon themselves to complete something they had been trying to do since the 16th century: Find the fabled Northwest Passage, a shortcut to the Orient via a sea route over Northern Canada. For the next 35 years the British Admiralty sent out expedition after expedition to probe the ice-bound waters of the Canadian Arctic in search of a route.

Captain James Cook is one of the greatest maritime explorers of all time. Over three remarkable voyages of discovery into the Pacific in the latter part of the 18th century, Cook unravelled the oldest mystery surrounding the existence of Terra Australis Incognita - the Great South Land. He became the first explorer to circumnavigate New Zealand and establish that it was two main islands; discover the Hawaiian Islands for the British Empire; and left an enduring legacy.

The Last Viking unravels the life of the man who stands head and shoulders above all those who raced to map the last corners of the world. In 1900, the four great geographical mysteries - the Northwest Passage, the Northeast Passage, the South Pole, and the North Pole - remained blank spots on the globe. Within twenty years Roald Amundsen would claim all four prizes.

In the annals of seafaring and exploration, there is one name that immediately evokes visions of the open ocean, billowing sails, visiting strange, exotic lands previously uncharted, and civilizations never before encountered - Captain James Cook. Full of realistic action, lush descriptions of places and events, and fascinating historical characters such as King George III and the soon-to-be-notorious Master William Bligh, Dugard's gripping account of the life and death of Captain James Cook is a thrilling story of a discoverer hell-bent on going farther than any man.

As 1909 dawned, the greatest jewels of exploration - set at the world's frozen extremes - lay unclaimed: the North and South Poles and the so-called "Third Pole", the pole of altitude, located in unexplored heights of the Himalaya. Before the calendar turned, three expeditions had faced death, mutiny, and the harshest conditions on the planet to plant flags at the furthest edges of the Earth.

On the afternoon of 8 April 1802, in the remote southern ocean, two explorers had a remarkable chance encounter. Englishman Matthew Flinders and Frenchman Nicolas Baudin had been sent by their governments on the same quest: to explore the uncharted coast of the great south land and find out whether the west and east coasts, four thousand kilometres apart, were part of the same island. And so began the race to compile the definitive map of Australia.

In the scorching summer of 1878, with the Gilded Age in its infancy, three tenacious and brilliant scientists raced to Wyoming and Colorado to observe a rare total solar eclipse. One sought to discover a new planet. Another - an adventuresome female astronomer - fought to prove that science was not anathema to femininity. And a young megalomaniacal inventor, with the tabloid press fast on his heels, sought to test his scientific bona fides and light the world through his revelations.

The legendary annihilation in 1883 of the volcano-island of Krakatoa - the name has since become a byword for a cataclysmic disaster - was followed by an immense tsunami that killed nearly 40,000 people. Beyond the purely physical horrors of an event that has only very recently been properly understood, the eruption changed the world in more ways than could possibly be imagined. Dust swirled round die planet for years, causing temperatures to plummet and sunsets to turn vivid with lurid and unsettling displays of light.

Set against the backdrop of an expanding nation, Brilliant Beacons traces the evolution of America's lighthouse system, highlighting the political, military, and technological battles fought to illuminate the nation's hardscrabble coastlines.

In 1839 rumors of extraordinary yet baffling stone ruins buried within the unmapped jungles of Central America reached two of the world's most intrepid travelers. Seized by the reports, American diplomat John Lloyd Stephens and British artist Frederick Catherwood sailed together out of New York Harbor on an expedition into the forbidding rainforests of present-day Honduras, Guatemala, and Mexico. What they found would rewrite the West's understanding of human history.

In 1914, Sir Ernest Shackleton sailed south aboard the Endurance to be the first to cross Antarctica. Shackleton's endeavor is legend, but few know the astonishing story of the Ross Sea party, the support crew he dispatched to the opposite side of the continent to build a vital lifeline of food and fuel depots.