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Discover the stories behind the world's most important inventions, from everyday essentials to major scientific discoveries. Find out how inventors made dramatic breakthroughs in everything from batteries and microchips to magnetism and rocket power. Packed with facts, illustrations, infographics, and photos.
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Expanded and revised, this new edition of the best-selling book celebrates the ingenious inventions of women throughout time. As inspiring as they are fascinating, these stories empower readers to imagine, to question, to experiment, and then to go forth... and invent.
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"[Introduces] inventors who solve problems using creativity, design, science, and engineering ... Includes firsthand accounts of how a range of cutting-edge inventions were developed. Readers will also get the chance to try their hand at designing and bringing their own inventions to life"--Provided by publisher.
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A brief history of African American inventors and their inventions, stretching from mechanic Benjamin Montgomery, who developed a modified propeller for steamboats, to chemist Percy Julian, who discovered a method for producing artificial human hormones from soybean plants.
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Ellie is looking forword to making new friends at Camp Hero, but her cabinmates, the Winter twins, whose power is to freeze things, do not seems to want to play with her, so Ellie uses her parents' latest invention to make them friendly--but it backfires when the twins start fighting each other over who Ellie likes best, and Ellie realizes that forcing someone to like you is not really cool.
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"Embark on a journey across millennia and around the world, from the latest understanding of the origins of the universe through the birth of the Earth, the very first life, the age of dinosaurs, the rise of humans, ancient civilizations, colonialism, wars, technology, everyday life, global struggles for freedom and equality, pandemics--and much more."--
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"When her teacher assigns a new team project for Earth Day, Ellie can't wait to pair up with her best friend, Hannah. After all, as a superhero, it's Ellie's job to save stuff--including the planet! But the project soon becomes more than Ellie's super-skills can handle. She decides to use one of her parents' super inventions to create a copy of herself. But when Ellie #2 threatens to take over, it's up to the real Ellie to bring the project back down...