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How the Wheel Changed History examines the ancient origins of the wheel and explores the many inventions--from the spinning wheel to the phonograph--made possible by the simple machine. Features include essential facts, a glossary, selected bibliography, websites, source notes, and an index, plus a timeline and maps, charts, and diagrams. Aligned to Common Core Standards and correlated to state standards. Essential Library is an imprint of Abdo Publishing, a division of ABDO.
A visually rich, analytical history of the key cycles in a revolutionary technology.
There is no part of our bodies that fully rotates—be it a wrist or ankle or arm in a shoulder socket, we are made to twist only so far. And yet there is no more fundamental human invention than the wheel—a rotational mechanism that accomplishes what our physical form cannot. Throughout history, humans have developed technologies powered by human strength, complementing the physical abilities we have while overcoming our weaknesses. Providing a unique history of the wheel and other rotational devices—like cranks, cranes, carts, and capstans—Why the Wheel Is Round examines the contraptions and tricks we have devised in order to more efficiently move—and move through—the physical world. Steven Vogel combines his engineering expertise with his remarkable curiosity about how things work to explore how wheels and other mechanisms were, until very recently, powered by the push and pull of the muscles and skeletal systems of humans and other animals. Why the Wheel Is Round explores all manner of treadwheels, hand-spikes, gears, and more, as well as how these technologies diversified into such things as hand-held drills and hurdy-gurdies. Surprisingly, a number of these devices can be built out of everyday components and materials, and Vogel’s accessible and expansive book includes instructions and models so that inspired readers can even attempt to make their own muscle-powered technologies, like trebuchets and ballista. Appealing to anyone fascinated by the history of mechanics and technology as well as to hobbyists with home workshops, Why the Wheel Is Round offers a captivating exploration of our common technological heritage based on the simple concept of rotation. From our leg muscles powering the gears of a bicycle to our hands manipulating a mouse on a roller ball, it will be impossible to overlook the amazing feats of innovation behind our daily devices.
Roughly half the world's population speaks languages derived from a shared linguistic source known as Proto-Indo-European. But who were the early speakers of this ancient mother tongue, and how did they manage to spread it around the globe? Until now their identity has remained a tantalizing mystery to linguists, archaeologists, and even Nazis seeking the roots of the Aryan race. The Horse, the Wheel, and Language lifts the veil that has long shrouded these original Indo-European speakers, and reveals how their domestication of horses and use of the wheel spread language and transformed civilization. Linking prehistoric archaeological remains with the development of language, David Anthony identifies the prehistoric peoples of central Eurasia's steppe grasslands as the original speakers of Proto-Indo-European, and shows how their innovative use of the ox wagon, horseback riding, and the warrior's chariot turned the Eurasian steppes into a thriving transcontinental corridor of communication, commerce, and cultural exchange. He explains how they spread their traditions and gave rise to important advances in copper mining, warfare, and patron-client political institutions, thereby ushering in an era of vibrant social change. Anthony also describes his fascinating discovery of how the wear from bits on ancient horse teeth reveals the origins of horseback riding. The Horse, the Wheel, and Language solves a puzzle that has vexed scholars for two centuries--the source of the Indo-European languages and English--and recovers a magnificent and influential civilization from the past.
From the ranging curiosity of Leonardo da Vinci to the dedication and sacrifice of Marie Curie, Inventors Who Changed the World is a young child's first introduction to the brilliant people who taught us the meaning of perseverance and innovation. Simple text and adorable illustrations tell the contributions of nine renowned inventors from around the world: Cai Lun, Leonardo da Vinci, Marie Curie, Thomas Edison, Orville and Wilbur Wright, Grace Hopper, Johannes Gutenberg, and Louis Pasteur. Inspire your own little inventor with the words of these inventive heroes who changed the world.
Presents a review of technological innovations and inventions, from the ancient world to the present day.
Do you ever find that the earth stills and you suddenly feel acutely alive? Have you ever looked into an animal's eyes and felt the pull of a more primal world? Do you sometimes feel panic rise, or isolation sink upon you, or simply feel out of kilter with the modern world? 'Inside my cauldron is a thick fistful of paper, old diary entries, work "to do" lists, notes I wrote while I was in a bad place and feeling trapped in a life that was keeping my mind small and narrow; thoughts and feelings that are holding me back, keeping me tied to a time I want to let go of. These papers are flashes of lightning across a darkened room and I want them gone. As they curl and burn, twisting in their black spirals like the farewell flourish of a travelling cloak, a sense of calm sweeps through my chest and shoulders. I feel it so strongly, like a blast of ice to my system, shivering out the old thoughts. I'm burning a path for something new to come in.' One winter, Jennifer Lane reached breaking point in her fast-paced office life. In the year that followed her stress-related illness, she set out to rediscover the solace and purpose that witchcraft had given her as a teenager. The Wheel is an immersive, engaging read - exploring the life-long draw of witchcraft and our vulnerability to toxic working environments and digital demands. In her year-long journey Jennifer explores ancient festivals and rituals, and visits fellow pagans and wild landscapes, in search of wisdom and peace. For those who are sick at heart of noise, anger and disconnection, The Wheel is full of wise words, crackling rituals and natural beauty. This is a quest to discover how to live fully connected to the natural world while firmly in the twenty-first century.
Examines how the engineer George Ferris invented and constructed the amusement park ride that bears his name for the 1893 Chicago World's Fair.
Why, for many centuries, was the wheel abandoned in the Middle East in favor of the camel as a means of transport? This richly illustrated study explains this anomaly. Drawing on archaeology, art, technology, anthropology, linguistics, and camel husbandry, Bulliet explores the implications for the region's economic and social development during the Middle Ages and into modern times.
Consistent daily prayer is possible with help from this program that divides an hour of prayer into five-minute "points of focus."