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

    Their target was the south face of Nepal's Annapurna: 12,000 feet of steep rock and ice leading to a 26, 454-ft. summit. As serious armchair climbers will tell you, Annapurna South Face is better than all but a handful of equally gripping classics. One could also argue that all that has happened in the big mountains in the past 30 years has come out of this expedition and out of this book. Bonington and his team—most of whom subsequently died in the mountains—represented a kind of "greatest generation" of modern mountaineers. They pioneered a new, bolder approach to high altitude climbing, and this book is about how they hit the big time.

    The articles are composed of three types: Adventures (Roberts' own climbs and outings), Profiles (other adventurers), and Reflections (meditative essays about the meaning of the whole business). Roberts ranges the globe (Africa, Alaska, New Guinea) and introduces unique personalities (Reinhold Messner, John Roskelly, Don Sheldon). He also recounts how his own love of writing and the useless pastime of climbing combined to produce the bread and butter of his career today.Popular with audiences far beyond active mountaineers, Roberts sets himself this challenge: "For me, the abiding puzzle of adventure writing lies in keeping, on the one hand, a sense of proportion about the absurdity of most of our antics in the outdoors, while staying alert, on the other, to the majesty of spirit which at their best those antics demonstrate."RUNNING TIME ⇒ 10hrs. and 39mins.©1986 David Roberts (P)2020 Brilliance Publishing, Inc., all rights reserved.

    Her mother was bedridden, her father rarely home, and Mary served as housekeeper, handyman, nursemaid, and servant. Not until she was thirty years old did Mary get her chance to explore the world she’d read about in her father’s library. In 1893, she arrived in West Africa, where she encountered giant Xying insects, crocodiles, hippos, and brutal heat. Mary endured the hardships of the equatorial country—and thrived.

    . . and almost as many ways to measure them!Marvelosissimo the Mathematical Magician is back -- and ready to explore the invention of length, weight, and volume measurements. After that, with another wave of his wand, the wizard introduces the world of metrics and makes it easy to understand the basic pattern of meters, liters, and grams. With Steven Kellogg's playful and delightfully detailed illustrations, measuring has never been such a blast!

    A desert, by definition, lacks it, but when water does come, it comes in torrential, sometimes devastating abundance. Childs, a thirtysomething desert rat with a vast knowledge of the Southwest's remote corners, knows this fact well. "Most rain falling anywhere but the desert comes slow enough that it is swallowed by the soil without comment," he observes. "Desert rains, powerful and sporadic, tend to hit the ground, gather into floods, and are gone before the water can sink five inches into the ground."The travels that Childs recounts in this vivid narrative take him from places sometimes parched, sometimes swimming, from the depths of the Grand Canyon to the dry limestone tanks of the lava-strewn Sonoran Desert. As he travels, Childs gives a close reading of the desert landscape ("the moral," he writes at one point, "is that if you know the land and its maps, you might live"), observing the rocks, plants, animals, and people that call it home. Some of his adventures will remind readers of Edward Abbey's Desert Solitaire—save that Childs writes without Abbey's bluster, and with a measured lyricism that well suits the achingly lovely back canyons and cactus forests of the Southwest. By turns travelogue, ecological treatise, and meditative essay, Childs's book will speak to anyone who has spent time under desert skies, wondering when the next drop of rain might fall.

    Intrigued by Polynesian folklore, biologist Thor Heyerdahl suspected that the South Sea Islands had been settled by an ancient race from thousands of miles to the east, led by a mythical hero, Kon-Tiki. He decided to prove his theory by duplicating the legendary voyage.On April 28, 1947, Heyerdahl and five other adventurers sailed from Peru on a balsa log raft. After three months on the open sea, encountering raging storms, whales, and sharks, they sighted land - the Polynesian island of Puka Puka.Translated into over sixty languages, Kon-Tiki is a classic, inspiring tale of daring and courage - a magnificent saga of men against the sea.

    He returned some 20 years later with a wife, four children and the internationally renowned tour company - Contiki Holidays.Written by the founder of Contiki, Only Two Seats Left is the incredible story of how a simple idea with a starting capital of just 25 pounds became a worldwide travel company with an internationally recognised iconic' brand name. To date over two million young people have had the Contiki Challenge.Only Two Seats Left is one of Australasia's great untold business success stories. A touching blend of autobiography, business insight and travel tale all rolled into one book readers won't want to put down.Discover the raw realities of John's journey of difficulties, failures and his most valuable secrets to successful entrepreneurship.In this altogether inspiring narrative, Only Two Seats Left encompasses entrepreneurship, leadership, risk taking, team work, branding, competition and surviving tough times John's personal journey creates a thoroughly entertaining read for anyone who's ever dreamt of taking a risk with that first bold step to venture into the unknown.

    Meticulously researched and illustrated with many detailed drawings, this novel offers an exceptionally vivid and personal portrait of Native American life and customs.

    Driving the car is Michael Paterniti, a young journalist from Maine. Sitting next to him is an eighty-four-year-old pathologist named Thomas Harvey who performed the autopsy on Einstein in 1955--and simply removed the brain and took it home. And kept it for over forty years.On a cold February day, the two men and the brain leave New Jersey and light out on I-70 for sunny California, where Einstein's perplexed granddaughter, Evelyn, awaits. And riding along as the imaginary fourth passenger is Einstein himself, an id-driven genius, the original galactic slacker with his head in the stars.Part travelogue, part memoir, part history, part biography, and part meditation, Driving Mr. Albert is one of the most unique road trips in modern literature. With the brain as both cargo and talisman, Paterniti perceives every motel, truck-stop diner, and roadside attraction as a weigh station for the American dream in the wake of the scientist's mind-blowing legacy. Finally, inspired by the man who gave a skeptical world a glimpse of its cosmic origins, this extraordinary writer weaves his own unified field theory of time, love, and the power to believe, once again, in eternity.

    You may find it for free on the web. Purchase of the Kindle edition includes wireless delivery.

    How Lincoln Learned to Read tells the American story from a fresh and unique perspective: how do we learn what we need to know? Beginning with Benjamin Franklin and ending with Elvis Presley, author Daniel Wolff creates a series of intimate, interlocking profiles of notable Americans that track the nation's developing notion of what it means to get a "good education." From the stubborn early feminism of Abigail Adams to the miracle of Helen Keller, from the savage childhood of Andrew Jackson to the academic ambitions of W.E.B. Du Bois, a single, fascinating narrative emerges. It connects the illiterate Sojourner Truth to the privileged Jack Kennedy, takes us from Paiute Indians scavenging on western deserts to the birth of Henry Ford's assembly line. And as the book traces the education we value – both in and outside the classroom – it becomes a history of key American ideas.In the end, How Lincoln Learned to Read delivers us to today's headlines. Standardized testing, achievement gaps, the very purpose of public education – all have their roots in this narrative. Whether you're a parent trying to make sure your child is prepared, a teacher trying to do the best possible job, or a student navigating the educational system, How Lincoln Learned to Read offers a challenge to consider what we need to know and how we learn it. Wide-ranging and meticulously researched, built mostly on primary sources, this is an American story that begins and ends with hope.

    Smith is a legend in the world of finance. Part adventurer and part economic warrior, this Indiana Jones of the financial world was an advance man for the forces of globalization, having spent more than thirty years traveling through five continents, buying and selling high-risk securities in the world's most downtrodden economies. So tenuous was his operation and so covert the transactions, that an overnight fluctuation in a country's currency rate could mean the difference between a spectacular profit or a devastating loss. Today, the trade in emerging market debt is worth more than five billion dollars a day, but it was virtually nonexistent when Smith, a one-time collections lawyer, pioneered the business in the late 1970s. Riches Among the Ruins is the extraordinary story of Robert Smith's search to make money doing the riskiest kind of business. We are at his side as he travels through the treacherous and exhilarating world of the debt trader, dodging bullets and roadside bombs in post-Saddam Iraq, and risking his life on the chaotic streets of Nigeria. As he engages in a battle of wills with businessmen in Istanbul, and loses millions overnight in the ruins of the post-Soviet Russian economy, we experience all of the thrill and terror that accompanies making big money in emerging markets. At once adrenaline-fueled and utterly compelling, this is the gripping story of one man's quest for fortune where others fear to tread.

    The shy Virginia statesman refused at first, but then went on to author one of our nation's most important and inspiring documents. The third U.S. president, Jefferson was also an architect, inventor, musician, farmer, and-what is certainly the most troubling aspect of his life-a slave owner. Finally, here's a biography for kids that unveils the many facets of this founding father's remarkable and complicated life.

    She was Grace O'Malley, the sixteenth-century Irish woman who provoked awe, anger, admiration, and fear in the English men who, by persuasion and by the sword, came to conquer the land of her birth.