How big were the first computers? What jobs were computers used for in the past? When was the World Wide Web invented? Take a journey through time and discover the amazing history of the computer!
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Offers useful information on how to make full use of the Handbook to solve problems encountered on the job throughout. Provides a wealth of time-saving data that can help in almost any situation. Includes over 500 examples and questions (with answers) specially selected for engineers and apprentices.
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Franny's faithful lab assistant, Igor, has swallowed a doomsday device that is ready to go off at any moment! For any regular scientist, there is only one way to get the device out -- um...make that two ways. But Franny K. Stein is no ordinary scientist, so she concocts her own way to get the device back and save her friend. With her miniaturization machine, Franny shrinks herself to the size of a pin and goes on a field trip like no other...through the body of a ticking time-dog! Fasten your seatbelts, it's going to be a bumpy ride!
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One day when the warlord is away, traders come and take Chuan from the palace, only to become lost in the desert. Chuan's carved wooden fish works as a compass and saves the day.
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Through observation, experimentation, and perseverance, humans through the ages have managed to solve a whole array of perplexing problems. These solutions have included such incredible inventions as
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The daughter of mathematician Theon, Hypatia grew up on the northern tip of Egypt in the great city of Alexandria in the 4th century A.D. Unlike most girls of her time, Hypatia learned to read and write, and as she grew older was tutored in mathematics, astronomy, and philosophy. In time, word spread of her brilliance and scholars from all over the world came to her seeking her advice and opinions in these subjects. Records of her fame as a teacher can be found in the writings of Socrates. One of her most famous students, Synesius, developed the astrolabe under her direction.
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From uniforms and submarines to potato cannons and regimental flags, this interactive book explores the history and inventions of the Civil War through building projects and activities. Finished products include a set of Civil War drums, secret codes, and a Civil War spy glass. Detailed step-by-step instructions, diagrams, and templates for each project are interspersed with historical facts, biographies, anecdotes, and trivia about the real-life models. Most of the building can be done using simple household supplies: construction paper, tape, markers, glue, cardboard tubes, string, yarn, aluminum foil, and cardboard boxes.
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Intended as a reference source for school projects, this book, which is one of a series, answers the question: where does ice cream come from?
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In 1824 a young Norwegian named Niels Henrik Abel proved conclusively that algebraic equations of the fifth order are not solvable in radicals. In this book Peter Pesic shows what an important event this was in the history of thought. He also presents it as a remarkable human story. Abel was twenty-one when he self-published his proof, and he died five years later, poor and depressed, just before the proof started to receive wide acclaim. Abel's attempts to reach out to the mathematical elite of the day had been spurned, and he was unable to find a position that would allow him to work in peace and marry his fianc饮But Pesic's story begins long before Abel and continues to the present day, for Abel's proof changed how we think about mathematics and its relation to the "real" world. Starting with the Greeks, who invented the idea of mathematical proof, Pesic shows how mathematics found its sources in the real world (the shapes of things, the accounting needs of merchants) and then reached beyond those sources toward something more universal. The Pythagoreans' attempts to deal with irrational numbers foreshadowed the slow emergence of abstract mathematics. Pesic focuses on the contested development of algebra--which even Newton resisted--and the gradual acceptance of the usefulness and perhaps even beauty of abstractions that seem to invoke realities with dimensions outside human experience. Pesic tells this story as a history of ideas, with mathematical details incorporated in boxes. The book also includes a new annotated translation of Abel's original proof.
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Get ready for some serious science fun when the Friz takes the kids on an electrifying adventure into an electric storm!Hi, I'm Keesha -- one of the kids in Ms. Frizzle's class. When Ms. Frizzle announced that we'd be studying the weather, I thought it would be pretty boring. Boy, was I wrong! Ms. Frizzle promised to take us on a field trip that would give us a real jolt of excitement -- little did we know what we had in mind. Before we knew it, we'd become a bolt of lightning and we were off on an electrifying adventure!
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