The materials are easy to find and the directions are simple to follow, but the end result is guaranteed to produce lots of oohs and aahs. Steve Spangler takes his geek-chic approach to exposing some of the coolest science tricks that will surprise teachers and amaze your friends. Over 200 color photographs accompany the step-by-step instructions, and simple explanations uncover the how-to and why for each activity. You'll have a blast with these experiments: Floating Bowling Balls Pop Bottle Music Bouncing Smoke Bubbles Walking on Eggshells Balancing Nails Fireproof Balloon Skateboard Rocket Car Warning! Do not read the special, super-secret, teachers-only section that reveals a few of Steve Spangler's secrets for making science come alive in the classroom. If you're not a teacher and you don't want to miss out on twisting up a Fire Tornado or making a mountain of Exploding Toothpaste, just give this book to the coolest science teacher you know and ask him or her to help you create an unforgettable learning experience.

    By weaving together their own research, interviews with pioneering scientists and Zach's trademark comics, the Weinersmiths investigate why these innovations are needed, how they would work, and what is standing in their way.

    It aims to give readers a fundamental overview of the technologies that make up the telecommunications infrastructure.

    It was also a land withered by drought and hunger, and a place where hope and opportunity were hard to find. But William had read about windmills in a book called Using Energy, and he dreamed of building one that would bring electricity and water to his village and change his life and the lives of those around him. His neighbors may have mocked him and called him misala—crazy—but William was determined to show them what a little grit and ingenuity could do.Enchanted by the workings of electricity as a boy, William had a goal to study science in Malawi's top boarding schools. But in 2002, his country was stricken with a famine that left his family's farm devastated and his parents destitute. Unable to pay the eighty-dollar-a-year tuition for his education, William was forced to drop out and help his family forage for food as thousands across the country starved and died.Yet William refused to let go of his dreams. With nothing more than a fistful of cornmeal in his stomach, a small pile of once-forgotten science textbooks, and an armory of curiosity and determination, he embarked on a daring plan to bring his family a set of luxuries that only two percent of Malawians could afford and what the West considers a necessity—electricity and running water. Using scrap metal, tractor parts, and bicycle halves, William forged a crude yet operable windmill, an unlikely contraption and small miracle that eventually powered four lights, complete with homemade switches and a circuit breaker made from nails and wire. A second machine turned a water pump that could battle the drought and famine that loomed with every season.Soon, news of William's magetsi a mphepo—his "electric wind"—spread beyond the borders of his home, and the boy who was once called crazy became an inspiration to those around the world.Here is the remarkable story about human inventiveness and its power to overcome crippling adversity. The Boy Who Harnessed the Wind will inspire anyone who doubts the power of one individual's ability to change his community and better the lives of those around him.

    Who has not wondered about how the human body works? Can a person drink too much water? How does gravity make things fall? From topics as varied as the Earth and atoms to sports and music, we all carry with us those questions we've always wanted answered but never knew whom to ask.Mysteries lurk in our bodies, our houses, the outdoors, in the sky above us, and the universe beyond us. Now, award-winning high school science teacher Larry Scheckel tackles 250 questions that help us to more clearly understand all of these mysteries. Scheckel perfected the art of explaining science topics not only as a science teacher for more than 38 years in his native Wisconsin, but also through writing a weekly column in his local paper, the "Tomah Journal," in which each week he'd field a question like those that are collected in this book.

    We often overlook the historical link between mathematics and technological advances, says Stewart—but this connection is integral to any complete understanding of human history.Equations are modeled on the patterns we find in the world around us, says Stewart, and it is through equations that we are able to make sense of, and in turn influence, our world. Stewart locates the origins of each equation he presents—from Pythagoras's Theorem to Newton's Law of Gravity to Einstein's Theory of Relativity—within a particular historical moment, elucidating the development of mathematical and philosophical thought necessary for each equation's discovery. None of these equations emerged in a vacuum, Stewart shows; each drew, in some way, on past equations and the thinking of the day. In turn, all of these equations paved the way for major developments in mathematics, science, philosophy, and technology. Without logarithms (invented in the early 17th century by John Napier and improved by Henry Briggs), scientists would not have been able to calculate the movement of the planets, and mathematicians would not have been able to develop fractal geometry. The Wave Equation is one of the most important equations in physics, and is crucial for engineers studying the vibrations in vehicles and the response of buildings to earthquakes. And the equation at the heart of Information Theory, devised by Claude Shannon, is the basis of digital communication today.An approachable and informative guide to the equations upon which nearly every aspect of scientific and mathematical understanding depends, In Pursuit of the Unknown is also a reminder that equations have profoundly influenced our thinking and continue to make possible many of the advances that we take for granted.

    In this timely, practical guide, Diane Heacox presents a menu of strategies and tools any teacher can use to differentiate instruction in any curriculum, even a standard of mandated curriculum. Drawing on Bloom's Taxonomy, Gardner's multiple Intelligences, other experts in the field, and her own considerable experience in the classroom, she explains how to differentiate instruction across a broad spectrum of scenarios. Some strategies are quick and easy others are more comprehensive. Templates and forms simplify planning; examples illustrate differentiation in many content areas. Recommended for all teachers committed to reaching and teaching all learners.

    individual whose contributions to the scientific, business and cultural realms are extensive."—BookpageBefore slim laptops that fit into briefcases, computers looked like strange, alien vending machines. But in "the most staggering burst of technical invention by a single person in high-tech history" (BusinessWeek​) Steve Wozniak invented the first true personal computer. Wozniak teamed up with Steve Jobs, and Apple Computer was born, igniting the computer revolution and transforming the world. Here, thirty years later, the mischievous genius with the low profile treats readers to a rollicking, no-holds-barred account of his life—for once, in the voice of the wizard himself.

    on the humid night of September 29, 1959, Braniff Flight 542 crashed on a farm near Buffalo, Texas. Less than six months later, Northwest Flight 710 crashed in a soybean field near Tell City, Indiana. Both planes were Lockheed Electras, and both, for no apparent reason, had lost a wing in mid-air. The combined toll of the two crashes was 97 lives. There were no survivors. Early the following October, during take-off from Boston’s Logan Airport, there was another Electra disaster, and the plane that had been supposedly foolproof became the object of the ugliest controversy in the history of commercial aviation. The Electra Story is an illuminating and incomparably thorough study of the plane’s entire career. From design through construction, rigorous testing, and brilliant initial performance, to the minute-by-minute record of the fatal flights, the scenes of wreckage, and then the painstaking efforts to solve the mystery. While the search for a “probable cause” went on, there was a crucial decision to be made: whether or not to let the Electras go on flying. Elwood R. Quesada, then Administrator of the Federal Aviation Agency, had to make that decision, and how he coped with this frightening responsibility is a remarkable tale in itself. The plane that had been a dream, then became a nightmare, is still flying today, and out of tragedy has come an important advance in man’s knowledge. Robert Serling’s evaluation of The Electra Story is an enlightening, vivid, unbiased and rare documented account. It is a human story of suspense, with dedication and courage. And as a story of how government, industry, technology, science and the public were all trapped in one intricate web, it is both revealing and significant. Praise for Robert Serling ‘High level of suspense and excitement.’ - De Moines Sunday Register ‘Serling has spun another winner’ – Publisher’s Weekly ‘…keeps you guessing til the end’ - Arizona Daily Star ‘Aviation buffs will revel in this thoroughgoing chronicle’ – Kirkus Robert J. Serling (1918-2010) was aviation editor of United Press International and won the annual TWA Best Aviation News Reporting Award for four years running.