Nathaniel Bowditch grew up in a sailor’s world—Salem in the early days, when tall-masted ships from foreign ports crowded the wharves. But Nat didn’t promise to have the makings of a sailor; he was too physically small. Nat may have been slight of build, but no one guessed that he had the persistence and determination to master sea navigation in the days when men sailed only by “log, lead, and lookout.” Nat’s long hours of study and observation, collected in his famous work, The American Practical Navigator (also known as the “Sailors’ Bible”), stunned the sailing community and made him a New England hero.

    It had an illustration that captivated him–a diagram showing Earth’s interior as it would look if you cut into it with a large knife and removed about a quarter of its bulk. The idea of lots of startled cars and people falling off the edge of that sudden cliff (and 4,000 miles is a pretty long way to fall) was what grabbed him in the beginning, but gradually his attention turned to what the picture was trying to teach him: namely that Earth’s interior is made up of several different layers of materials, and at the very centre is a glowing sphere of iron and nickel, as hot as the Sun’s surface, according to the caption. And he very clearly remembers thinking: “How do they know that?”Bill’s storytelling skill makes the “How?” and, just as importantly, the “Who?” of scientific discovery entertaining and accessible for all ages. He covers the wonder and mystery of time and space, the frequently bizarre and often obsessive scientists and the methods they used, and the mind-boggling fact that, somehow, the universe exists and against all odds, life came to be on this wondrous planet we call home.

    That’s the inspiring message of this New York Times Bestselling picture book biography series from historian and author Brad MeltzerWhen Helen Keller was very young, she got a rare disease that made her deaf and blind. Suddenly, she couldn't see or hear at all, and it was hard for her to communicate with anyone. But when she was six years old, she met someone who change her life forever: her teacher, Annie Sullivan. With Miss Sullivan's help, Helen learned how to speak sign language and read Braille. Armed with the ability to express herself, Helen grew up to be come a social activist, leading the fight for people with disabilities and so many other causes.

    In ancient Greece, young Pythagoras discovers a special number pattern (the Pythagorean theorem) and uses it to solve problems involving right triangles.Book Details: Format: Paperback Publication Date: 4/1/2004 Pages: 32 Reading Level: Age 8 and Up

    Dissecting everything from tractors and pigs to fences, hay bales, crop rotation patterns, and farm tools, Rothman gives a richly entertaining tour of the quirky details of country life. From the shapes of squash varieties to the parts of a goat; from how a barn is constructed to what makes up a beehive, every corner of the barnyard is uncovered and celebrated. A perfect gift for gardeners, locavores, homesteaders, and country-living enthusiasts alike.

    And then the dizzy spells start. Soon gravely ill with leukemia, the "atom bomb disease," Sadako faces her future with spirit and bravery. Recalling a Japanese legend, Sadako sets to work folding paper cranes. For the legend holds that if a sick person folds one thousand cranes, the gods will grant her wish and make her healthy again. Based on a true story, Sadako and the Thousand Paper Cranes celebrates the extraordinary courage that made one young woman a heroine in Japan.

    In If Stones Could Speak, award-winning author Marc Aronson joins the research crew and records their efforts to crack Stonehenge’s secrets. National Geographic helped sponsor the Riverside archeological team’s mission, and now young readers can journey behind the scenes to experience this groundbreaking story first-hand, through the eyes of the experts. Mike and his team have revolutionized our understanding of Stonehenge by exploring the surrounding landscape for clues about the stones -- an idea first suggested by a visitor from Madagascar. The results have been breathtaking: The team recently unearthed the largest Neolithic village ever found in England. Marc Aronson had total access to the site, the team, and their work over two seasons of digging and brings the inspirational story of the discoveries taking place at this World Historical Site to young readers. The informative and drama-driven text includes tales of dead bodies, cremations, feasting, and ancient rituals, as well as insights into the science of uncovering the ancien t past. The expert text, stunning photography, and explanatory maps and illustrations will all help young readers see this ancient monument in totally new ways, and inspire future generations of archaeological explorers.

    Escape seemed impossible--certainly dangerous. Yet Harriet did escape North, by the secret route called the Underground Railroad. Harriet didn't forget her people. Again and again she risked her life to lead them on the same secret, dangerous journey.

    Their impressive cities, tall pyramids, shining goldwork, and intricate textiles constitute one of the greatest artistic traditions in history.For the second edition, Rebecca Stone-Miller has added new material covering the earliest mummification in the world at Chinchorros, wonderful new Moche murals and architectural reconstructions, the latest finds from the Chachapoyas culture, and a greater emphasis on shamanism. Throughout, Stone-Miller demonstrates how the Andean peoples adapted and refined their aesthetic response to an extremely inhospitable environment.

    These myths featured gods and goddesses, mighty beings who look human but have amazing powers and live forever. Now you can meet these extraordinary characters and hear their legends, brought to life again by Aliki in this splendid, panoramic look at the amazing stories and characters of Greek legend. "[Will meet the] demand for basic information on the gods and goddesses at the primary level."—BL. "Aliki's fans will welcome her introduction to these famous Greeks."—SLJ. 1994 "Pick of the Lists" (ABA)

    Along the way, it reveals riveting facts on the founding of the great Roman Empire, the revolution that changed France forever, the war between the North and South that unified America, the start of World War I and the Great Depression that followed, the first moon landing, and the end of apartheid in South Africa.The encyclopedia is organized chronologically and then thematically within each time period. A timeline runs across the top of each page. Each section includes biographies of important people and features on art, architecture, and technology.

    And young children are not afraid to ask questions. What makes me a girl? What makes me a boy? Why are some parts of girls' and boys' bodies the same and why are some parts different? How was I made? Where do babies come from? Is it true that a stork brings babies to mommies and daddies? IT'S NOT THE STORK! helps answer these endless and perfectly normal questions that preschool, kindergarten, and early elementary school children ask about how they began. Through lively, comfortable language and sensitive, engaging artwork, Robie H. Harris and Michael Emberley address readers in a reassuring way, mindful of a child's healthy desire for straightforward information. Two irresistible cartoon characters, a curious bird and a squeamish bee, provide comic relief and give voice to the full range of emotions and reactions children may experience while learning about their amazing bodies. Vetted and approved by science, health, and child development experts, the information is up-to-date, age-appropriate, and scientifically accurate, and always aimed at helping kids feel proud, knowledgeable, and comfortable about their own bodies, about how they were born, and about the family they are part of.

    Explore the incredible diversity of life in the sea--from the haunting, hour-long songs of humpback whales to the fantastic coral colonies that spawn all their young in a single night.

     “I and my companions suffer from a disease of the heart which can be cured only with gold.” —Hernán CortésIt was a moment unique in human history, the face-to-face meeting between two men from civilizations a world apart. Only one would survive the encounter. In 1519, Hernán Cortés arrived on the shores of Mexico with a roughshod crew of adventurers and the intent to expand the Spanish empire. Along the way, this brash and roguish conquistador schemed to convert the native inhabitants to Catholicism and carry off a fortune in gold. That he saw nothing paradoxical in his intentions is one of the most remarkable—and tragic—aspects of this unforgettable story of conquest.In Tenochtitlán, the famed City of Dreams, Cortés met his Aztec counterpart, Montezuma: king, divinity, ruler of fifteen million people, and commander of the most powerful military machine in the Americas. Yet in less than two years, Cortés defeated the entire Aztec nation in one of the most astonishing military campaigns ever waged. Sometimes outnumbered in battle thousands-to-one, Cortés repeatedly beat seemingly impossible odds. Buddy Levy meticulously researches the mix of cunning, courage, brutality, superstition, and finally disease that enabled Cortés and his men to survive.Conquistador is the story of a lost kingdom—a complex and sophisticated civilization where floating gardens, immense wealth, and reverence for art stood side by side with bloodstained temples and gruesome rites of human sacrifice. It’s the story of Montezuma—proud, spiritual, enigmatic, and doomed to misunderstand the stranger he thought a god. Epic in scope, as entertaining as it is enlightening, Conquistador is history at its most riveting.From the Hardcover edition.

    How they got here, persevered, and ultimately thrived is a story that resonates from the Pleistocene to our modern era. The lower sea levels of the Ice Age exposed a vast land bridge between Asia and North America, but the land bridge was not the only way across. Different people arrived from different directions, and not all at the same time.The first explorers of the New World were few, their encampments fleeting. The continent they reached had no people but was inhabited by megafauna--mastodons, giant bears, mammoths, saber-toothed cats, five-hundred-pound panthers, enormous bison, and sloths that stood one story tall. The first people were hunters--Paleolithic spear points are still encrusted with the proteins of their prey--but they were wildly outnumbered and many would themselves have been prey to the much larger animals.Atlas of a Lost World chronicles the last millennia of the Ice Age, the violent oscillations and retreat of glaciers, the clues and traces that document the first encounters of early humans, and the animals whose presence governed the humans' chances for survival. A blend of science and personal narrative reveals how much has changed since the time of mammoth hunters, and how little. Across unexplored landscapes yet to be peopled, readers will see the Ice Age, and their own age, in a whole new light.