Both were brilliant students who attended college--one at Princeton, the other at Columbia--and studied law. Both were young staff officers under General George Washington, and both became war heroes. Politics beckoned them, and each served in the newly formed government of the fledgling nation. Why, then, did these two face each other at dawn in a duel that ended with death for one and opprobrium for the other? Judith St. George's lively biography, told in alternating chapters, brings to life two complex men who played major roles in the formation of the United States.

    The girl, Nya, is fetching water from a pond that is two hours’ walk from her home: she makes two trips to the pond every day. The boy, Salva, becomes one of the "lost boys" of Sudan, refugees who cover the African continent on foot as they search for their families and for a safe place to stay. Enduring every hardship from loneliness to attack by armed rebels to contact with killer lions and crocodiles, Salva is a survivor, and his story goes on to intersect with Nya’s in an astonishing and moving way.

    Freud was a complicated, often irascible man, who in 19th-century Vienna developed his still-controversial ideas and the new discipline of psychoanalysis.

    They began their harrowing journey on bicycles, pedaling to Southern France with children's book manuscripts among their few possessions.Louise Borden combed primary resources, including Hans Rey's pocket diaries, to tell this dramatic true story. Archival materials introduce readers to the world of Hans and Margret Rey while Allan Drummond dramatically and colorfully illustrates their wartime trek to a new home.Follow the Rey's amazing story in this unique large format book that resembles a travel journal and includes full-color illustrations, original photos, actual ticket stubs and more. A perfect book for Curious George fans of all ages.

    Alexander von Humboldt (1769 – 1859) was an intrepid explorer and the most famous scientist of his age. In North America, his name still graces four counties, thirteen towns, a river, parks, bays, lakes, and mountains. His restless life was packed with adventure and discovery, whether he was climbing the highest volcanoes in the world or racing through anthrax-infected Siberia or translating his research into bestselling publications that changed science and thinking. Among Humboldt's most revolutionary ideas was a radical vision of nature, that it is a complex and interconnected global force that does not exist for the use of humankind alone. Now Andrea Wulf brings the man and his achievements back into focus: his daring expeditions and investigation of wild environments around the world and his discoveries of similarities between climate and vegetation zones on different continents. She also discusses his prediction of human-induced climate change, his remarkable ability to fashion poetic narrative out of scientific observation, and his relationships with iconic figures such as Simón Bolívar and Thomas Jefferson. Wulf examines how Humboldt's writings inspired other naturalists and poets such as Darwin, Wordsworth, and Goethe, and she makes the compelling case that it was Humboldt's influence that led John Muir to his ideas of natural preservation and that shaped Thoreau's Walden.With this brilliantly researched and compellingly written book, Andrea Wulf shows the myriad fundamental ways in which Humboldt created our understanding of the natural world, and she champions a renewed interest in this vital and lost player in environmental history and science.

    The name dinosaur was coined in 1842 by an English anatomist Richard Owen, a highly ambitious, machiavellian schemer and villain of Deborah Cadbury's The Dinosaur Hunters: A True Story of Scientific Rivalry and the Discovery of the Prehistoric World. Her hero is Gideon Mantell, a practising doctor, who found and first described many of the bones of the beasts that subsequently became known as dinosaurs. Full of quotes from contemporary sources, The Dinosaur Hunters brilliantly evokes the Dickensian world of early Victorian science and society. From Mary Anning, the self-taught fossil hunter of Lyme Regis to the academic and deeply eccentric Dean Buckland of Oxford University, the story tells of reputations made and lost as self-help, self-promotion, over-wheening pride, folly and social climbing all played their part in the emerging story of the geological past. The dinosaurs, although central to the story, are also a vehicle for the much larger, more interesting and important story about the struggle to understand the meaning of fossils and what they tell us about prehistory. Deborah Cadbury, an award-winning TV science producer and acclaimed author of The Feminisation of Nature has thoroughly researched her topic and steeped herself in the intricacies of the scientific debates of the time. With black and white illustrations, extensive notes, a bibliography and index, the result is one of the best popular science histories. --Douglas Palmer.

    It is the powerful story of four African-American female mathematicians at NASA who helped achieve some of the greatest moments in our space program. Now a major motion picture starring Taraji P. Henson, Octavia Spencer, Janelle Monae, Kirsten Dunst, and Kevin Costner.Before John Glenn orbited the earth, or Neil Armstrong walked on the moon, a group of dedicated female mathematicians known as “human computers” used pencils, slide rules, and adding machines to calculate the numbers that would launch rockets, and astronauts, into space.This book brings to life the stories of Dorothy Vaughan, Mary Jackson, Katherine Johnson, and Christine Darden, who lived through the Civil Rights era, the Space Race, the Cold War, and the movement for gender equality, and whose work forever changed the face of NASA and the country.

    . . there was an expression of his face that no painter had succeeded in taking."--London's New Monthly Magazine in 1790 George Washington's face has been painted, printed, and engraved more than a billion times since his birth in 1732. And yet even in his lifetime, no picture seemed to capture the likeness of the man who is now the most iconic of all our presidents. Worse still, people today often see this founding father as the "old and grumpy" Washington on the dollar bill. In 2005 a team of historians, scientists, and artisans at Mount Vernon set out to change the image of our first president. They studied paintings and sculptures, pored over Washington's letters to his tailors and noted other people's comments about his appearance, even closely examined the many sets of dentures that had been created for Washington. Researchers tapped into skills as diverse as 18th-century leatherworking and cutting-edge computer programming to assemble truer likenesses. Their painstaking research and exacting processes helped create three full-body representations of Washington as he was at key moments in his life. And all along the way, the team gained new insight into a man who was anything but "old and grumpy." Join award-winning author Carla Killough McClafferty as she unveils the statues of the three Georges and rediscovers the man who became the face of a new nation.

    Mowat's account of the summer he lived in the frozen tundra alone—studying the wolf population and developing a deep affection for the wolves (who were of no threat to caribou or man)—is today celebrated as a classic of nature writing, at once a tale of remarkable adventures and indelible record of myths and magic of wolves.

    Their creations are some of the most enduring (the windshield wiper) and best loved (the chocolate chip cookie). What inspired these women, and just how did they turn their ideas into realities?Features women inventors Ruth Wakefield, Mary Anderson, Stephanie Kwolek, Bette Nesmith Graham, Patsy O. Sherman, Ann Moore, Grace Murray Hopper, Margaret E. Knight, Jeanne Lee Crews, and Valerie L. Thomas, as well as young inventors ten-year-old Becky Schroeder and eleven-year-old Alexia Abernathy. Illustrated in vibrant collage by Caldecott Honor artist Melissa Sweet.

    The Vietnam Veterans Memorial in Washington, D.C., is one of the most famous pieces of civic architecture in the world. But most people are not as familiar with the reserved college student who entered and won the design competition to build it. This accessible biography tells the story of Maya Lin, from her struggle to stick with her vision of the memorial to the wide variety of works she has created since then. Illustrated extensively with photos and drawings, the carefully researched text crosses multiple interests--American history, civic activism, art history, and cultural diversity--and offers a timely celebration of the memorial's 35th anniversary, as well as contributing to the current, important discussion of the role of women and minorities in American society"--

    Sixty-six million years ago, the Earth’s most fearsome creatures vanished. Today they remain one of our planet’s great mysteries. Now The Rise and Fall of the Dinosaurs reveals their extraordinary, 200-million-year-long story as never before.In this captivating narrative (enlivened with more than seventy original illustrations and photographs), Steve Brusatte, a young American paleontologist who has emerged as one of the foremost stars of the field—naming fifteen new species and leading groundbreaking scientific studies and fieldwork—masterfully tells the complete, surprising, and new history of the dinosaurs, drawing on cutting-edge science to dramatically bring to life their lost world and illuminate their enigmatic origins, spectacular flourishing, astonishing diversity, cataclysmic extinction, and startling living legacy. Captivating and revelatory, The Rise and Fall of the Dinosaurs is a book for the ages.Brusatte traces the evolution of dinosaurs from their inauspicious start as small shadow dwellers—themselves the beneficiaries of a mass extinction caused by volcanic eruptions at the beginning of the Triassic period—into the dominant array of species every wide-eyed child memorizes today, T. rex, Triceratops, Brontosaurus, and more. This gifted scientist and writer re-creates the dinosaurs’ peak during the Jurassic and Cretaceous, when thousands of species thrived, and winged and feathered dinosaurs, the prehistoric ancestors of modern birds, emerged. The story continues to the end of the Cretaceous period, when a giant asteroid or comet struck the planet and nearly every dinosaur species (but not all) died out, in the most extraordinary extinction event in earth’s history, one full of lessons for today as we confront a “sixth extinction.”Brusatte also recalls compelling stories from his globe-trotting expeditions during one of the most exciting eras in dinosaur research—which he calls “a new golden age of discovery”—and offers thrilling accounts of some of the remarkable findings he and his colleagues have made, including primitive human-sized tyrannosaurs; monstrous carnivores even larger than T. rex; and paradigm-shifting feathered raptors from China.An electrifying scientific history that unearths the dinosaurs’ epic saga, The Rise and Fall of the Dinosaurs will be a definitive and treasured account for decades to come.

    Through grit and pure determination, 1,100 of these female pilots—who had to prove their worth time and time again—were finally allowed to ferry planes from factories to bases, to tow targets for live ammunition artillery training, to test repaired planes and new equipment, and more. Though the WASPs lived on military bases, trained as military pilots, wore uniforms, marched in review, and sometimes died violently in the line of duty, they were civilian employees and received less pay than men doing the same jobs and no military benefits, not even for burials. Their story is one of patriotism, the power of positive attitudes, the love of flying, and the willingness to do good with no concern for personal gain.

    Born in the British West Indies, Hamilton arrived in New York as an "outsider." He fought in the Revolution and became Washington's most valuable aidede- camp. He was there with Washington, Madison, and the others writing the Constitution. He was the first Secretary of the Treasury as the country struggled to become unified and independent. Fritz's talent for bringing historical figures to life is at its best as she shares her fascination with this man of action who was honorable, ambitious, and fiercely loyal to his adopted country.

    He wrote vast volumes about animals. He described them, classified them, told us where and how they live and how they develop in the womb or in the egg. He founded a science. It can even be said that he founded science itself.In The Lagoon, acclaimed biologist Armand Marie Leroi recovers Aristotle’s science. He revisits Aristotle’s writings and the places where he worked. He goes to the eastern Aegean island of Lesbos to see the creatures that Aristotle saw, where he saw them. He explores Aristotle’s observations, his deep ideas, his inspired guesses—and the things he got wildly wrong. He shows how Aristotle’s science is deeply intertwined with his philosophical system and reveals that he was not only the first biologist, but also one of the greatest.The Lagoon is both a travelogue and a study of the origins of science. And it shows how a philosopher who lived almost two millennia ago still has so much to teach us today.