Before We Were Free

Before We Were Free PDF

Author: Julia Alvarez

Publisher: Laurel Leaf

Published: 2007-12-18

Total Pages: 181

ISBN-13: 030743317X

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Anita de la Torre never questioned her freedom living in the Dominican Republic. But by her 12th birthday in 1960, most of her relatives have emigrated to the United States, her Tío Toni has disappeared without a trace, and the government’s secret police terrorize her remaining family because of their suspected opposition of el Trujillo’s dictatorship. Using the strength and courage of her family, Anita must overcome her fears and fly to freedom, leaving all that she once knew behind. From renowned author Julia Alvarez comes an unforgettable story about adolescence, perseverance, and one girl’s struggle to be free.

The Humane Gardener

The Humane Gardener PDF

Author: Nancy Lawson

Publisher: Chronicle Books

Published: 2017-04-18

Total Pages: 226

ISBN-13: 1616896175

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In this eloquent plea for compassion and respect for all species, journalist and gardener Nancy Lawson describes why and how to welcome wildlife to our backyards. Through engaging anecdotes and inspired advice, profiles of home gardeners throughout the country, and interviews with scientists and horticulturalists, Lawson applies the broader lessons of ecology to our own outdoor spaces. Detailed chapters address planting for wildlife by choosing native species; providing habitats that shelter baby animals, as well as birds, bees, and butterflies; creating safe zones in the garden; cohabiting with creatures often regarded as pests; letting nature be your garden designer; and encouraging natural processes and evolution in the garden. The Humane Gardener fills a unique niche in describing simple principles for both attracting wildlife and peacefully resolving conflicts with all the creatures that share our world.

Bicycling with Butterflies

Bicycling with Butterflies PDF

Author: Sara Dykman

Publisher: Timber Press

Published: 2021-04-13

Total Pages: 281

ISBN-13: 1643260456

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“What a wonderful idea for an adventure! Absolutely inspired, timely, and important.” —Alistair Humphreys, National Geographic Adventurer of the Year and author of The Doorstep Mile and Around the World by Bike Outdoor educator and field researcher Sara Dykman made history when she became the first person to bicycle along­side monarch butterflies on their storied annual migration—a round-trip adventure that included three countries and more than 10,000 miles. Equally remarkable, she did it solo, on a bike cobbled together from used parts. Her panniers were recycled buckets. In Bicycling with Butterflies, Dykman recounts her incredible journey and the dramatic ups and downs of the nearly nine-month odyssey. We’re beside her as she nav­igates unmapped roads in foreign countries, checks roadside milkweed for monarch eggs, and shares her passion with eager schoolchil­dren, skeptical bar patrons, and unimpressed border officials. We also meet some of the ardent monarch stewards who supported her efforts, from citizen scientists and research­ers to farmers and high-rise city dwellers. With both humor and humility, Dykman offers a compelling story, confirming the urgency of saving the threatened monarch migration—and the other threatened systems of nature that affect the survival of us all.

The Little Butterfly That Could (A Very Impatient Caterpillar Book)

The Little Butterfly That Could (A Very Impatient Caterpillar Book) PDF

Author: Ross Burach

Publisher: Scholastic Inc.

Published: 2021-04-06

Total Pages: 48

ISBN-13: 133876215X

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WHAT IF I CAN'T? “Will elicit plenty of giggles." -- Kirkus Reviews Which way to the flowers? That way. 200 miles. How am I supposed to travel that far?! You fly. Can I take a plane? No. Then I'll never make it! This comical companion to Ross Burach's The Very Impatient Caterpillar pays loving homage to every child's struggle to persist through challenges while also delivering a lighthearted lesson on butterfly migration. Remember, if at first you don't succeed, fly, fly again!

Butterflies Fly

Butterflies Fly PDF

Author: Yvonne Winer

Publisher: Charlesbridge Publishing

Published: 2001

Total Pages: 36

ISBN-13: 9781570914461

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Rhyming text describes a variety of butterflies. Includes a butterfly identification guide.

Sled Driver

Sled Driver PDF

Author: Brian Shul

Publisher: Lickle Pub Incorporated

Published: 1991

Total Pages: 151

ISBN-13: 9780929823089

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No aircraft ever captured the curiosity & fascination of the public like the SR-71 Blackbird. Nicknamed "The Sled" by those few who flew it, the aircraft was shrouded in secrecy from its inception. Entering the U.S. Air Force inventory in 1966, the SR-71 was the fastest, highest flying jet aircraft in the world. Now for the first time, a Blackbird pilot shares his unique experience of what it was like to fly this legend of aviation history. Through the words & photographs of retired Major Brian Shul, we enter the world of the "Sled Driver." Major Shul gives us insight on all phases of flying, including the humbling experience of simulator training, the physiological stresses of wearing a space suit for long hours, & the intensity & magic of flying 80,000 feet above the Earth's surface at 2000 miles per hour. SLED DRIVER takes the reader through riveting accounts of the rigors of initial training, the gamut of emotions experienced while flying over hostile territory, & the sheer joy of displaying the jet at some of the world's largest airshows. Illustrated with rare photographs, seen here for the first time, SLED DRIVER captures the mystique & magnificence of this most unique of all aircraft.

The DelFly

The DelFly PDF

Author: G.C.H.E. de Croon

Publisher: Springer

Published: 2015-11-26

Total Pages: 218

ISBN-13: 9401792089

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This book introduces the topics most relevant to autonomously flying flapping wing robots: flapping-wing design, aerodynamics, and artificial intelligence. Readers can explore these topics in the context of the "Delfly", a flapping wing robot designed at Delft University in The Netherlands. How are tiny fruit flies able to lift their weight, avoid obstacles and predators, and find food or shelter? The first step in emulating this is the creation of a micro flapping wing robot that flies by itself. The challenges are considerable: the design and aerodynamics of flapping wings are still active areas of scientific research, whilst artificial intelligence is subject to extreme limitations deriving from the few sensors and minimal processing onboard. This book conveys the essential insights that lie behind success such as the DelFly Micro and the DelFly Explorer. The DelFly Micro, with its 3.07 grams and 10 cm wing span, is still the smallest flapping wing MAV in the world carrying a camera, whilst the DelFly Explorer is the world's first flapping wing MAV that is able to fly completely autonomously in unknown environments. The DelFly project started in 2005 and ever since has served as inspiration, not only to many scientific flapping wing studies, but also the design of flapping wing toys. The combination of introductions to relevant fields, practical insights and scientific experiments from the DelFly project make this book a must-read for all flapping wing enthusiasts, be they students, researchers, or engineers.