Inspired by the Enlightenment quest for knowledge, they consider it a slur on the age that the interior of Africa still remains a mystery, that maps of the "dark continent" are populated with mythical beasts, imaginary landmarks, and fabled empires. As well, they hoped that more accurate knowledge of Africa would aid in the abolition of the slave trade. These men, a mixed group of soldiers and gentlemen, ex-convicts, and social outcasts, form the African Association, the world's first geographical society, and over several decades send hardened, grizzled adventurers to replace speculation with facts and remove the beasts from the maps. The explorers who ventured forth included Mungo Park, whose account of his travels would be a bestseller for more than a century; American John Ledyard; and Jean Louis Burckhardt, the discoverer of Petra and Abu Simbel. Their exploits would include grueling crossings of the Sahara, the exploration of the Nile, and---most dramatically---the search for the great River Niger and its legendary city of gold: Timbuktu. Anthony Sattin weaves the plotting of the London gentlemen and the experiences of their extraordinary explorers into a gripping account of high adventure, international intrigue, and geographical discovery. "The Gates of Africa" is a story of human courage and fatal ambition, a groundbreaking insight into the struggle to reveal the secrets of Africa.

    Featuring more than 500 full-color illustrations and photographs, along with detailed annotations, Smithsonian Handbooks make identification easy and accurate.

    In 2007 bird-watching is one of the most popular pastimes, not just in America, but throughout the world, and the range of interest runs from the specialist to the beginner.In The Wisdom of Birds, Birkhead takes the reader on a journey that not only tells us about the extraordinary lives of birds - from conception and egg, through territory and song, to migration and fully fledged breeder - but also shows how, over centuries, we have overcome superstition and untested 'truths' to know what we know, and how recent some of that knowledge is.Conceived for a general audience, and illustrated throughout with more than 100 exquisitely beautiful illustrations, many of them rarely, if ever, seen before, The Wisdom of Birds is a book full of stories, knowledge and unexpected revelations.

    Now the journey continues in a new, updated edition that includes all the latest information on mathematical proofs, fractals, prime numbers, and chaos, as well as new material on* the relationship between mathematical knots and DNA* how computers based on quantum logic can significantly speed up the factoring of large composite numbers* the relationship between four-dimensional geometry and physical theories of the nature of matter* the application of cellular automata models to social questions and the peregrinations of virtual ants* a novel mathematical model of quasicrystals based on decagon-shaped tilesBlazing a trail through rows of austere symbols and dense lines of formulae, Peterson explores the central ideas behind the work of professional mathematicians-- how and where their pieces of the mathematical puzzle fit in, the sources of their ideas, their fountains of inspiration, and the images that carry them from one discovery to another.

    Often billions of times more massive than the Sun, they lurk in the inner sanctum of almost every galaxy of stars in the universe. They're mysterious chasms so destructive and unforgiving that not even light can escape their deadly wrath.Recent research, however, has led to a cascade of new discoveries that have revealed an entirely different side to black holes. As the astrophysicist Caleb Scharf reveals in Gravity's Engines, these chasms in space-time don't just vacuum up everything that comes near them; they also spit out huge beams and clouds of matter. Black holes blow bubbles.With clarity and keen intellect, Scharf masterfully explains how these bubbles profoundly rearrange the cosmos around them. Engaging with our deepest questions about the universe, he takes us on an intimate journey through the endlessly colorful place we call our galaxy and reminds us that the Milky Way sits in a special place in the cosmic zoo—a "sweet spot" of properties. Is it coincidental that we find ourselves here at this place and time? Could there be a deeper connection between the nature of black holes and their role in the universe and the phenomenon of life? We are, after all, made of the stuff of stars.

    Using glorious, colorful graphics, Mark Ovenden traces the history of mass transit-including rare and historic maps, diagrams, and photographs, some available for the first time since their original publication. Transit Maps is the graphic designer's new bible, the transport enthusiast's dream collection, and a coffee-table essential for everyone who's ever traveled in a city.

    In this beautiful new one-volume edition, modern readers are introduced to one of the best nature writers of the last century. More than one hundred of the original illustrations by Paul Landacre highlight the eloquent and entertaining accounts of American trees. As we read Peattie's descriptions, we catch glimpses of our country's history and past daily life that no textbook could ever illuminate so vividly.Here you'll learn about everything from how a species was discovered to the part it played in our country’s history. Pioneers often stabled an animal in the hollow heart of an old sycamore, and the whole family might live there until they could build a log cabin. The tuliptree, the tallest native hardwood, is easier to work than most softwood trees; Daniel Boone carved a sixty-foot canoe from one tree to carry his family from Kentucky into Spanish territory. In the days before the Revolution, the British and the colonists waged an undeclared war over New England's white pines, which made the best tall masts for fighting ships. It's fascinating to learn about the commercial uses of various woods -- for paper, fine furniture, fence posts, matchsticks, house framing, airplane wings, and dozens of other preplastic uses. But we cannot read this book without the occasional lump in our throats. The American elm was still alive when Peattie wrote, but as we read his account today we can see what caused its demise. Audubon's portrait of a pair of loving passenger pigeons in an American beech is considered by many to be his greatest painting. It certainly touched the poet in Donald Culross Peattie as he depicted the extinction of the passenger pigeon when the beech forest was destroyed. A Natural History of North American Trees gives us a picture of life in America from its earliest days to the middle of the last century. The information is always interesting, though often heartbreaking. While Peattie looks for the better side of man's nature, he reports sorrowfully on the greed and waste that have doomed so much of America's virgin forest.

    Here are "...the choicest fruits of Thoreau..." — Nation.

    We all have one, but most of us will never see one. The heart surgeon now has that privilege but, for centuries, the heart was out of reach even for surgeons. So when a surgeon nowadays opens up a ribcage and mends a heart, it remains something of a miracle, even if, to some, it is merely plumbing. As with plumbers, the quality of surgeons’ work varies. As with plumbers, surgeons’ opinion of their own prowess and their own attitude to risk are not always reliable. Measurement is key. We’ve had a century of effective evidence-based medicine. We’ve had barely a decade of thorough monitoring of clinical outcomes. Thanks to the ground-breaking risk modelling of pioneering surgeons like Samer Nashef, we at last know how to judge whether an operation is in a patient’s best interest, which hospital and surgeon would be best for that operation, when it might best be performed and what the exact level of risk is. We have at last made what is important in surgery measurable. But how should surgeons, and their patients, use these newfound insights? Ever since his days as a medical student, Samer Nashef has challenged the medical profession to be more open and more accurate about the success of surgical procedures, for the sake of the patients. In The Naked Surgeon, he unclothes his own profession to demonstrate to his reader (and prospective patient) many revelations, such as the paradox at the heart of the cardiac surgeon’s craft: the more an operation is likely to kill you, the better it is for you. And he does so with absolute clarity, fluency and not a little wit.

     From outback Australia to the Gobi Desert and the savanna of Madagascar, award-winning science writer John Pickrell sets out on a world tour of new discoveries and meets the fossil hunters leading the charge. Discover the dwarf dinosaurs unearthed by an eccentric Transylvanian baron, an aquatic, crocodile-snouted carnivore bigger than T. rex, the Chinese dinosaur with wings like a bat, and a Patagonian sauropod so enormous it was heavier than two commercial jet airliners. Why did dinosaurs grow so huge? Did they all have feathers? And what do sauropods have in common with 1950s vacuum cleaners? Weird Dinosaurs examines the latest breakthroughs and new technologies radically transforming our understanding of the distant past.

    The down beats of their wings would chill the air beneath and create a thundering roar that would drown out all other sound. Feeding flocks would appear as “a blue wave four or five feet high rolling toward you.”John James Audubon, impressed by their speed and agility, said a lone passenger pigeon streaking through the forest “passes like a thought.” How prophetic-for although a billion pigeons crossed the skies 80 miles from Toronto in May of 1860, little more than fifty years later passenger pigeons were extinct. The last of the species, Martha, died in captivity at the Cincinnati Zoo on September 1, 1914.As naturalist Joel Greenberg relates in gripping detail, the pigeons' propensity to nest, roost, and fly together in vast numbers made them vulnerable to unremitting market and recreational hunting. The spread of railroads and telegraph lines created national markets that allowed the birds to be pursued relentlessly. Passenger pigeons inspired awe in the likes of Audubon, Henry David Thoreau, James Fenimore Cooper, and others, but no serious effort was made to protect the species until it was way too late. Greenberg's beautifully written story of the passenger pigeon provides a cautionary tale of what happens when species and natural resources are not harvested sustainably.

    These theories are not only untrue, it is not even science. It is fairy-tale physics: fantastical, bizarre and often outrageous, perhaps even confidence-trickery.This book provides a much-needed antidote. Informed, comprehensive, and balanced, it offers lay readers the latest ideas about the nature of physical reality while clearly distinguishing between fact and fantasy. With its engaging portraits of many central figures of modern physics, including Paul Davies, John Barrow, Brian Greene, Stephen Hawking, and Leonard Susskind, it promises to be essential reading for all readers interested in what we know and don't know about the nature of the universe and reality itself.

    Based on a major conference sponsored by the National Academy of Sciences and the Smithsonian Institution, Biodiversity creates a systematic framework for analyzing the problem and searching for possible solutions.

    The world you live in is stranger than fiction... as you read this, you exist in other places at the same time. Do not regret having missed the chance to realize your dreams, for you may just have fulfilled it in another universe.. * Are the trillions of atoms that make you, nothing but vibrations in 10 dimensions?* Is it true that we are all connected with each other?* Can you go into the future to change the present?* Why do scientists and philosophers struggle with the concept of Time?* Can science explain consciousness through physics?* Is our fate driven by the underlying randomness in nature?* Is nature hiding the best-kept secrets which can never be unravelled by humans?The Speed of Time approaches the most complex and esoteric theories of science in lucid, clear and simple language and in the style of a thriller, leaving you wanting more... while addressing questions through the enigmatic theories in Physics such as Quantum Mechanics, Einstein's Theory of Relativity, Time, Chaos, and much more. Just start reading and you will not put it down.

    is one of the most successful—and influential—companies of our time, the transformational innovator that made computers not just personal but beautiful everyday objects. Technology met design, and our culture was altered forever.And yet very little is known about life inside Apple. The company is pathologically secretive—even with its own designers—about how it comes up with its groundbreaking products: iMac, iPod, iPhone, iPad, and the next “insanely great” thing on the horizon. Here, for the first time, the men and women who worked for and alongside Steve Jobs share their remarkable, nearly forty-year-old story. How Apple survived nearly catastrophic failure early on. How Jobs and his team came to understand and execute design like no one else. And how their philosophy ultimately changed the world.This Fast Company/Byliner Original is unlike any other book about Apple. Author Max Chafkin led a team of “Fast Company” reporters that spent months interviewing more than fifty former Apple execs and insiders, many of whom had never spoken publicly about their work. The result is a compelling and deeply revealing oral history of how design evolved at the most creative enterprise of our time, the company that one entrepreneur says “taught the world taste.”In these interviews, former colleagues describe Jobs at his most brilliant and bombastic—hurling unsatisfactory products across the lab and insulting employees, yet also singling out and celebrating craftsmanship and original work. Without a doubt, Jobs is the single most important figure in the company’s history. But overlooked in Apple’s carefully cultivated mythology are the other ingenious men and women who’ve left an indelible mark on Apple, some of whom think they deserve much more of the credit. At Apple, the stakes were big, and so were the egos.“Design Crazy” takes us behind the mystique and reveals Apple to be a deeply misunderstood company. And the greatest business story of the past two decades is far from over. Two years after the death of Steve Jobs, with many of his former colleagues now at startups like Tesla, Evernote, and Nest Labs, some think the end of Apple’s dominance is only a matter of time. The company has risen to the challenge before, but still the question lingers: Can Apple be Apple without Jobs?ABOUT THE AUTHORMax Chafkin is a contributing writer with “Fast Company.” His work has also been published in “Inc.”, “Vanity Fair,” “The New York Times Magazine,” and “The Best Business Writing 2012.” He lives in Brooklyn.