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Author: Mark Denny
Publisher: JHU Press
ISBN: 9780801886652
Category : Science
Languages : en
Pages : 300
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Book Description
Have you ever wondered how stealth planes achieve "invisibility," how sunken ships are found, or how fishermen track schools of fish in vast expanses of ocean? Radar and sonar echolocation—a simple matter of sending, receiving, and processing signals. Weaving history with simple science, Mark Denny deftly reveals the world of radar and sonar to the curious reader, technology buff, and expert alike. He begins with an early history of the Chain Home radar system used during World War II and then provides accessible and engaging explanations of the physics that make signal processing possible. Basic diagrams and formulas show how electromagnetic and sound waves are transmitted, received, and converted into images, allowing you to literally see in the dark. A section on bioacoustic echolocation, with a focus on the superior sonar systems of bats and whales and a discussion of the advanced technology of next-generation airborne signal processors, opens the imagination to fascinating possibilities for the future.
Author: Mark Denny
Publisher: JHU Press
ISBN: 9780801886652
Category : Science
Languages : en
Pages : 300
Get Book Here
Book Description
Have you ever wondered how stealth planes achieve "invisibility," how sunken ships are found, or how fishermen track schools of fish in vast expanses of ocean? Radar and sonar echolocation—a simple matter of sending, receiving, and processing signals. Weaving history with simple science, Mark Denny deftly reveals the world of radar and sonar to the curious reader, technology buff, and expert alike. He begins with an early history of the Chain Home radar system used during World War II and then provides accessible and engaging explanations of the physics that make signal processing possible. Basic diagrams and formulas show how electromagnetic and sound waves are transmitted, received, and converted into images, allowing you to literally see in the dark. A section on bioacoustic echolocation, with a focus on the superior sonar systems of bats and whales and a discussion of the advanced technology of next-generation airborne signal processors, opens the imagination to fascinating possibilities for the future.
Author: Cameron Macintosh
Publisher: Enslow Publishing, LLC
ISBN: 1538384787
Category : Juvenile Fiction
Languages : en
Pages : 122
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Book Description
Max and Oscar are given a pet ID microchip to identify. A rice-sized electronic device, Max has never seen anything quite like it. Using an ancient library book scanner, he obtains a reading from it. It's a mysterious code, with the Bluggsville City logo beside it. Max and Oscar uncover the identity of the dog it was assigned to and are determined to find out why the chip was never implanted. Oscar, smitten by the dog in the photo, is especially eager. When their hunt lands them at a pound for robo-dogs, they resolve to set the dogs free. Little do they know the chip is transmitting their location details to forces that threaten their own freedom.
Author: Steve Antony
Publisher: Scholastic Inc.
ISBN: 1338257358
Category : Juvenile Fiction
Languages : en
Pages : 36
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Book Description
From the creator of the bestselling Mr. Panda series comes an amusing picture book about the fun you can have when you unplug. Meet Blip. Blip loves being plugged into her computer. When a blackout occurs, Blip trips over her wire and tumbles outside. Suddenly, Blip's gray world is filled with color and excitement. She plays with her new friends and has adventures all day long. When Blip finally returns home, she realizes that the world can be even brighter once you unplug.
Author: Kate Hannigan
Publisher: Knopf Books for Young Readers
ISBN: 0593306716
Category : Juvenile Nonfiction
Languages : en
Pages : 49
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Book Description
An engaging picture book biography based on the incredible true story of a Jewish refugee who pioneered home video games and launched a worldwide obsession. Do you ever wonder how video gaming was invented? What came before your PlayStation or Xbox? This is the story of Ralph Baer, a refugee from Nazi Germany, who used his skills--and a lot of ingenuity and persistence--to make life a little more fun. Television was new when Ralph returned from serving in World War II, but he didn't settle for watching TV. He knew it could be even more fun if you could play with it. He tinkered and tested, got help and rejected, but with perseverance and skill, he made his vision come true! This is the inspiring story of a fearless inventor who made TV video games a reality.
Author: Jim Benton
Publisher: HarperCollins
ISBN: 0062972944
Category : Juvenile Fiction
Languages : en
Pages : 100
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Book Description
*Winner of the 2022 Pop Culture Classroom Excellence in Graphic Literature Award for Best Children’s Nonfiction!* Two curious robots seek the answers to life’s most pressing—and hilarious—questions in this full-color graphic novel series by Jim Benton, New York Times bestselling author and creator of Franny K. Stein and Catwad! Join Jop and Blip as they follow their curiosity and investigate these seemingly odd questions using their own brand of logic, critical thinking skills, STEM knowledge, and humor. • Can you hear a penguin fart on Mars? • What if you wanted a dragon sandwich? • Why do we need TWO ears? With Jop and Blip, everything is worth knowing! Perfect for fans of Dav Pilkey and Dan Gutman!
Author: Realbuzz Studios,
Publisher: Thomas Nelson
ISBN: 1418576913
Category : Young Adult Fiction
Languages : en
Pages : 97
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Book Description
Serenity a mom? The thought's enough to make her crack. It's the last project she ever expected. Her health class requires each student to care for chicken eggs 24/7 to simulate the round-the-clock nurturing a real baby needs. Serenity thinks that's a tough assignment until she finds herself with much more than a baby chick to care for!
Author: Lance Ford
Publisher: Infinity Publishing
ISBN: 0741431823
Category :
Languages : en
Pages : 235
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Book Description
A reluctant hero in the wrong place at the right time. A desperate young woman in need of help. Together a bond of friendship is formed that will never be broken.
Author: William R. Catton
Publisher: University of Illinois Press
ISBN: 0252098005
Category : Social Science
Languages : en
Pages : 321
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Book Description
Our day-to-day experiences over the past decade have taught us that there must be limits to our tremendous appetite for energy, natural resources, and consumer goods. Even utility and oil companies now promote conservation in the face of demands for dwindling energy reserves. And for years some biologists have warned us of the direct correlation between scarcity and population growth. These scientists see an appalling future riding the tidal wave of a worldwide growth of population and technology. A calm but unflinching realist, Catton suggests that we cannot stop this wave - for we have already overshot the Earth's capacity to support so huge a load. He contradicts those scientists, engineers, and technocrats who continue to write optimistically about energy alternatives. Catton asserts that the technological panaceas proposed by those who would harvest from the seas, harness the winds, and farm the deserts are ignoring the fundamental premise that "the principals of ecology apply to all living things." These principles tell us that, within a finite system, economic expansion is not irreversible and population growth cannot continue indefinitely. If we disregard these facts, our sagging American Dream will soon shatter completely.
Author: John A. Williams
Publisher: Open Road Media
ISBN: 1504033043
Category : Fiction
Languages : en
Pages : 430
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Book Description
In this fiercely authentic tale from the author of The Man Who Cried I Am, a gifted novelist confronts the powerfully entrenched, profit-motivated forces of corporate racism When his military service ends at the close of World War II—a period that will continue to haunt him throughout his life—Cato Douglass resolves to pursue a writing career and follows his dream to New York City. Soon, his first novel is published, and it appears his dream has been fulfilled, enabling him to travel the world, fall in love, marry, and start a family. But despite possessing a talent that shines brighter than that of many of his literary contemporaries, Cato discovers that he is trapped within a racist system. Only a handful of black writers receive the support of white editors and critics, and because Cato’s work pushes the boundaries set by the publishing industry, he is doomed to a life of obscurity. The Chicago Sun-Times proclaimed !Click Song “a major novel by one of America’s finest living writers.” Winner of the 1983 American Book Award, John A. Williams’s enthralling chronicle of a writer’s lifelong struggle to matter is a blistering tale of art, industry, family, and race.
Author:
Publisher: "O'Reilly Media, Inc."
ISBN: 1098151836
Category :
Languages : en
Pages : 513
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Book Description
