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Plane Finite Elements for Two-Dimensional Problems: Application of the Computer Algebra System Maxima

by Andreas Öchsner Resam Makvandi

This book is intended as a study aid for the finite element method. Based on the free computer algebra system Maxima, we offer routines to symbolically or numerically solve problems from the context of two-dimensional problems. For this rather advanced topic, classical ‘hand calculations’ are difficult to perform and the incorporation of a computer algebra system is a convenient approach to handle, for example, larger matrix operations. The mechanical theories focus on the classical two-dimensional structural elements, i.e., plane elements, thin or classical plates, and thick or shear deformable plate elements. The use of a computer algebra system and the incorporated functions, e.g., for matrix operations, allows to focus more on the methodology of the finite element method and not on standard procedures. Furthermore, we offer a graphical user interface (GUI) to facilitate the model definition. Thus, the user may enter the required definitions in a source code manner directly in wxMaxima or use the GUI which is able to execute wxMaxime to perform the calculations.

Planen mit Tageslicht: Grundlagen für die Praxis (essentials)

by Renate Hammer Mathias Wambsganß

Neue Erkenntnisse zur Wichtigkeit ausreichender Tageslichtversorgung im Innenraum haben planungsrelevante Änderungen normativer Vorgaben nach sich gezogen. Renate Hammer und Mathias Wambsganß veranschaulichen die neuen Anforderungen und erläutern die Möglichkeiten zur planerischen Umsetzung. Die Autoren klären, wann Tageslichtversorgung und Besonnung als ausreichend gelten, welche Qualitäten die Sichtverbindung nach außen erfüllen muss und wie Blendung durch Tageslicht zu begrenzen ist. Angaben zur melanopischen Wirkungsweise von Tageslicht bieten einen Einstieg in den planerischen Umgang mit nicht-visuellen Kriterien. Ein weiteres Kapitel zeigt die Schnittstellen mit anderen Aspekten der Bauplanung.Die Autoren:Dr. Renate Hammer studierte Architektur, Solararchitektur und Philosophie in Wien und Krems sowie Urban Engineering in Tokio. 2015 gründete sie das Institute of Building Research & Innovation. Sie unterrichtet einschlägig an der Kunstuniversität Linz und der FH Campus Wien. Prof. Mathias Wambsganß studierte Architektur an der Universität Karlsruhe (TH). 2014 gründete er das Büro „3lpi lichtplaner“ in München. Er ist langjähriges Mitglied im Vorstand der LiTG e.V. und wurde 2007 als Professor an die TH Rosenheim berufen.

Planes, Gliders and Paper Rockets: Simple Flying Things Anyone Can Make--Kites and Copters, Too!

by Rick Schertle James Floyd Kelly

Do helicopters need more or less energy to stay in the sky than an airplane? What pushes a rocket to leave the atmosphere? Why can airplanes have smaller motors than helicopters? Help your students learn the answers to these and other questions! Written for educators, homeschoolers, parents--and kids!--this fully illustrated book provides a fun mix of projects, discussion materials, instructions, and subjects for deeper investigation around the basics of homemade flying objects. With the projects in this book, you can spend more time learning and experimenting, and less time planning and preparing. Complete with download links to PDF templates that expand your teaching, this is your one-stop manual for learning about, interacting with, and being curious about airflow, gravity, torque, power, ballistics, pressure, and force. In Make: Planes, Gliders, and Paper Rockets, you'll make and experiment with: Paper catapult helicopter--add an LED light for night launches!Pull-string stick helicopterRubber band airplaneSimple sled kite25-cent quick-build kiteAir rockets with a parachute or a gliderFoam air rocketRocket standsBounce rocketLow- and high-pressure rocket launchers

Planet Aqua: Rethinking Our Home in the Universe

by Jeremy Rifkin

What would happen if we were to awaken one day and suddenly realize that the world we live in appeared eerily alien, as if we’d been teleported to some other distant world? That frightening prospect is now. Our planetary hydrosphere, which animates all of life on Earth, is rebelling in the wake of a global warming climate, spurring biblical spring floods, devastating summer droughts, heatwaves, and wildfires and powerful autumn hurricanes and typhoons, wreaking havoc on ecosystems and society. For too long we have misjudged the very nature of our existence and to what we owe our lifeline. We have come to believe that we live on a land planet when the reality is that we live on a water planet, and now the Earth’s hydrosphere is rewilding in the throes of a changing climate, taking our species and our fellow creatures into a mass extinction event as it searches for a new equilibrium. Jeremy Rifkin calls on us to rethink our place in the universe and realize that we live on Planet Aqua. He takes us on a new journey into the future where we will need to reassess every aspect of the way we live – how we engage nature, govern society, conceptualize economic life, educate our children, and even orient ourselves in time and space. The next stage in the human journey is to rebrand our home Planet Aqua and learn how to readapt to the waters of life. Underpinned by robust research, this major new work by one of the world’s leading public intellectuals aims to redefine the very core of our existence on Planet Aqua.

Planet Earth (A True Book (Relaunch))

by Stephanie Warren Drimmer

Discover the wonder and learn the truth about our rocky home.Why does life exist on Earth but nowhere else in our solar system? What causes Earth's seasons? What makes up the Earth's interior? This book answers these questions and many more about our rocky home. From Earth's place in space, to its atmosphere and time zones, everything readers need to know about planet Earth is covered!Planets and stars, moons and galaxies! The universe is a vast and mysterious place with much to explore. And there's no better way to make amazing discoveries about space than with this reimagined series. With the latest NASA imagery, the classic structure and features of A True Book, and lively text, the titles in Our Universe bring the awe of the cosmos directly to readers. Students will come away with a wealth of knowledge about the incredible celestial bodies in our universe.This series covers Next Generation Science Standards core ideas including "The Universe and its stars" and "Earth and the solar system."

Planet Earth: A Beginner's Guide (Beginner's Guides)

by John Gribbin

In this incredible expedition into the origins, workings, and evolution of our home planet, John Gribbin, bestselling author of In Search of Schrödinger's Cat, The Scientists, and In Search of the Multiverse, does what he does best: taking four and a half billion years of mind-boggling science and digging out the best bits. From the physics of Newton and the geology of Wegener, to the environmentalism of Lovelock, this is a must read for Earth's scientists and residents alike. Trained as an astrophysicist at Cambridge University, John Gribbin is currently Visiting Fellow in Astronomy at the University of Sussex, England.

Planet Earth

by Farah Rizvi Kathleen M. Reilly

Planet Earth: 25 Environmental Projects You Can Build Yourself provides an engaging guide to the natural world and encourages children ages 9 and up to get their hands dirty and actively connect with the environment. It then introduces key environmental issues-wind and solar power, pollution, endangered species, global warming, and recycling-and posits potential solutions. Trivia, fun facts, and 25 captivating hands-on projects investigate ecology basics, such as the food chain, oxygen, and animal habitats, as well as ways to lessen the strain on Earth's resources by reducing human consumption and waste. With Planet Earth kids will learn how to respect and protect our unique planet.

The Planet Earth and The Universe (Planet Guides)

by Duncan Brewer

This short yet informative book discusses the Big Bang Theory, and how the planets were formed, as well as the debates of ancient astronomers whether the earth was the center of the Universe or if the sun was. Informative facts about the Earth as a planet, and interesting facts about its moon. Worth reading if interested in fundamental astronomy or the planets. Great for all ages. Scientific terms are defined in the text and in a glossary. Picture captions give meat to the story.

Planet Earth for Kids: A Junior Scientist's Guide to Water, Air, and Life in Our Ecosphere (Junior Scientists)

by Stacy W Kish MS

Explore the land, water, and sky with the Junior Scientists series for kids ages 6 to 9 Have you ever wondered what makes the weather change? Or how mountains, rivers, and valleys get their shapes? Answer these questions and more with Planet Earth for Kids! You'll explore how our planet became the perfect home for all its plants and animals and how our air, sun, water, and dirt make planet Earth unique. Photos and illustrations—Beautiful pictures and fascinating diagrams let you take a peek at everything from penguins and storm clouds to the different types of rocks. Facts and activities—Discover what causes volcanoes, how much salt is really in the ocean, and even how to build your own solar-powered pizza oven! Earth ecosystems—Learn about the different biomes and habitats all over planet Earth and the plants and animals that work together to keep them healthy. Find out what keeps all life on Earth in balance with Planet Earth for Kids.

Planet Earth III: Accompanies the Landmark Series Narrated by David Attenborough

by Matt Brandon Michael Gunton Jonny Keeling

The official tie-in to the third instalment in the legendary Planet Earth franchiseFew places on Earth remain untouched by humans, creating challenges for the wildlife we share it with. We have entered a new age, and we must look at the splendour of the natural world through a different lens.From the depths of our oceans, to scorching deserts and the most remote jungles, Planet Earth III features spectacular places and surprising animal behaviours from all corners of our world. And for the first time, a human element is introduced to each landscape, highlighting how, in the age of the Anthropocene, today's planet has been forever changed by humanity and that wildlife now faces new challenges in our crowded, modern world.Featuring over 250 beautiful full-colour photographs, Planet Earth III reveals the wonders and trials of life on an increasingly fragile planet, bringing you closer than ever before to our world’s most intriguing species, unseen landscapes and natural phenomena.

Planet Earth, Past and Present: Parallels Between Our World and its Celestial Neighbors (Springer Praxis Books)

by Michael Carroll

The Earth is not the world it once was, and it is not the world it will always be. This book describes the exciting, complex, and occasionally baffling history of our own planet. Over the course of its 4.5 billion years, Earth has undergone astonishing changes to its surface and atmosphere, at times more closely resembling other planets in our Solar System than the habitable, teeming biosphere of today. Through these otherworldly analogs, author-illustrator Michael Carroll teaches readers about different aspects of our own planet’s past. Our nearest cosmic neighbor, Venus, offers insights into Earth’s own young atmosphere and surface, while Saturn’s moon Titan may offer a window into the genesis of life on Earth. Planet Earth, Past and Present explores these and many more connections. Original art accompanies each chapter, depicting major stages of the Earth’s evolution and providing vivid comparisons to other planets or moons. Come along on this journey through the Solar System—a journey that ultimately leads us home.

Planet Earth: Scientific Proposals to Solve Urgent Issues

by Avelino Núñez-Delgado

This book represents the most comprehensive overview of issues affecting our planet and the forefront solutions, including climate change, air, water, soil pollution, demography, and access to food and water. This edited book, led by Prof. Núñez-Delgado, counts with the participation of leading researchers across a wide range of disciplines to be an inspiring and motivating document to promote sustainability and biodiversity. Those of you asking for trustworthy analyses about sustainability and climate change and the vanguard solutions will find this book fascinating.

Planet Formation and Panspermia: New Prospects for the Movement of Life Through Space (Astrobiology Perspectives on Life in the Universe)

by Branislav Vukotić Richard Gordon Joseph Seckbach

An in-depth view of the panspermia hypothesis examined against the latest knowledge of planetary formation and related processes. Panspermia is the concept that life can be passively transported through space on various bodies and seed, habitable planets and moons, which we are beginning to learn may exist in large numbers. It is an old idea, but not popular with those who prefer that life on Earth started on Earth, an alternative, also unproven hypothesis. This book updates the concept of panspermia in the light of new evidence on planet formation, molecular clouds, solar system motions, supernovae ejection mechanisms, etc. Thus, it is to be a book about newly understood prospects for the movement of life through space. The novel approach presented in this book gives new insights into the panspermia theory and its connection with planetary formation and the evolution of galaxies. This offers a good starting point for future research proposals about exolife and a better perspective for empirical scrutiny of panspermia theory. Also, the key to understanding life in the universe is to understand that the planetary formation process is convolved with the evolution of stellar systems in their galactic environment. The book provides the synthesis of all these elements and gives the readers an up-to-date insight on how panspermia might fit into the big picture. Audience Given the intrinsic interdisciplinary nature of the panspermia hypothesis the book will have a wide audience across various scientific disciplines covering astronomy, biology, physics and chemistry. Apart from scientists, the book will appeal to engineers who are involved in planning and realization of future space missions.

Planet-Friendly Hacks: Simple Tips and Budget-Friendly Advice for Sustainable Living

by Elizabeth Ajao

This handy guide is brimming with quick tips, life hacks and budget-friendly tricks to help you reduce your carbon footprint and live more sustainablyAn eco-friendly lifestyle is expensive and time-consuming, right? Wrong! There are countless ways to make green choices that don’t take a toll on your time, your bank balance or the planet.This book is your one-stop guide to living a more sustainable lifestyle. Whether you need tips on conserving energy or reducing food waste, or you want to give your home a makeover without impacting the planet, these pages include everything you need to get started. You will find:Clever life hacks to make reducing your carbon footprint that bit easierSimple tips to help you make planet-friendly choices in everyday lifeSmart advice for eco-living on a budgetInspiration for eco-friendly crafts and DIY projectsIt’s more important than ever to do our bit for the environment, and Planet-Friendly Hacks will help you live life to the full without costing the earth.

The Planet Gods: Myths and Facts about the Solar System

by Jacqueline Mitton; Christina Balit

Though many of the planets were named long before we had good scientific information about them, Mitton draws readers attention to some amazing coincidences. The veiled goddess Venus lends her name to a cloud-shrouded planet. The blue, stormy planet Neptune is named for the god of the sea.

Planet Heart

by François Reeves

We've all heard the risk factors for cardiovascular disease: high blood pressure, high cholesterol, obesity, smoking, stress, and a sedentary lifestyle. But what about our environment? Despite almost 500 recent studies that show the links between air and water quality, biodiversity, and heart health, a poor environment as a critical cardiovascular risk factor has largely been ignored. In Planet Heart, cardiologist François Reeves aims to redress this imbalance with an incisive and authoritative look at the subject. Why did North America experience an explosion of cardiovascular disease in the mid-20th century? Why are people in China, who were until recently protected from cardiovascular disease, now suffering a surge of heart attacks? Why are there more heart attacks during episodes of smog? Why would living near an urban green space halve the difference in cardiac mortality between the rich and poor? In his lively, accessible text, Reeves not only sheds light on these questions with the latest scientific evidence but also offers tangible solutions that could mean better health for our hearts and for our planet.Published in partnership with the David Suzuki Foundation

Planet Hunter: Geoff Marcy and the Search for Other Earths

by Vicki O. Wittenstein

He has discovered more planets than anyone in history. In this inspiring true story, winner of the American Institute of Physics Award, Geoff Marcy's love of space helped him overcome struggles in his studies until finally he became an astronomer. <P><P> But he was not on track to make major discoveries. Eventually, he went back to the questions that thrilled him as a boy: Are we alone? Do Earth-like planets orbit the stars in the night sky? It would not be easy to find a planet outside our solar system. Others had tried and failed. But Marcy never gave up. Since 1995, he and his colleagues have discovered nearly half of the 380 known "extrasolar" planets. Stunning paintings transport the reader to the exotic worlds that he and others have found.

The Planet Hunters

by Rebecca Boyle

One way astronomers search for planets is by looking for the shadows they cast in front of stars.

Planet Joy

by Jenny Valentine

For readers aged 9+ comes the third book in a sparkling series about family, friends and finding the joy in life! From Guardian award-winning author Jenny Valentine, this is the perfect series for fans of Jacqueline Wilson, Cath Howe and Lara Williamson! Meet ten-year-old Joy Applebloom, a girl with a knack for finding the silver lining in even the darkest of rainclouds. After years of travelling the world with her family, Joy feels like she&’s finally found a place she can call home. She&’s settled in at school, has a new best friend called Benny and she&’s finally making a difference in the world. But when a new girl, Phoebe Dark, joins class 6C, Joy discovers there&’s a whole world out there that she hasn&’t explored yet . . . Could Plane Tree Gardens be just the beginning?A heart-warming and joyful series about family, friends and never being too small to make a difference, with gorgeous illustrations from Claire Lefevre. 'A delight for its warmth and humour, but principally because the writing is alive and stunning' The Sunday Times on A Girl Called Joy

Planet Mercury

by David A. Rothery

A new and detailed picture of Mercury is emerging thanks to NASA's MESSENGER mission that spent four years in orbit about the Sun's innermost planet. Comprehensively illustrated by close-up images and other data, the author describes Mercury's landscapes from a geological perspective: from sublimation hollows, to volcanic vents, to lava plains, to giant thrust faults. He considers what its giant core, internal structure and weird composition have to tell us about the formation and evolution of a planet so close to the Sun. This is of special significance in view of the discovery of so many exoplanets in similarly close orbits about their stars. Mercury generates its own magnetic field, like the Earth (but unlike Venus, Mars and the Moon), and the interplay between Mercury's and the Sun's magnetic field affects many processes on its surface and in the rich and diverse exosphere of neutral and charged particles surrounding the planet. There is much about Mercury that we still don't understand. Accessible to the amateur, but also a handy state-of-the-art digest for students and researchers, the book shows how our knowledge of Mercury developed over the past century of ground-based, fly-by and orbital observations, and looks ahead at the mysteries remaining for future missions to explore.

Planet Name Game (Step into Reading)

by Tom Brannon Tish Rabe

A Step 2 Step into Reading Science Reader based on an episode of the hit PBS Kids TV show The Cat in the Hat Knows a Lot About That! Join the Cat in the Hat as he takes Sally and Nick on an adventure into space to learn the names of the eight planets in our solar system! Written in rhyme for children who can read with help, this Step 2 book is a great way to introduce beginning readers to basic concepts about space and to support the Common Core State Standards. Step 2 Readers use basic vocabulary and short sentences to tell simple stories. For children who recognize familiar words and can sound out new words with help.

Planet of Microbes: The Perils and Potential of Earth's Essential Life Forms

by Ted Anton

We live in a time of unprecedented scientific knowledge about the origins of life on Earth. But if we want to grasp the big picture, we have to start small—very small. That’s because the real heroes of the story of life on Earth are microbes, the tiny living organisms we cannot see with the naked eye. Microbes were Earth’s first lifeforms, early anaerobic inhabitants that created the air we breathe. Today they live, invisible and seemingly invincible, in every corner of the planet, from Yellowstone’s scalding hot springs to Antarctic mountaintops to inside our very bodies—more than a hundred trillion of them. Don’t be alarmed though: many microbes are allies in achieving our—to say nothing of our planet’s—health. In Planet of Microbes, Ted Anton takes readers through the most recent discoveries about microbes, revealing their unexpected potential to reshape the future of the planet. For years, we knew little about these invisible invaders, considering them as little more than our enemies in our fight against infectious disease. But the more we learn about microbes, the more it’s become clear that our very lives depend on them. They may also hold the answers to some of science’s most pressing problems, including how to combat a warming planet, clean up the environment, and help the body fight off a wide variety of diseases. Anton has spent years interviewing and working with the determined scientists who hope to harness the work of microbes, and he breaks down the science while also sharing incredible behind-the-scenes stories of the research taking place everywhere from microbreweries to Mars. The world’s tiniest organisms were here more than three billion years before us. We live in their world, and Planet of Microbes at last gives these unsung heroes the recognition they deserve.

Planet of the Ants: The Hidden Worlds And Extraordinary Lives Of Earth's Tiny Conquerors

by Susanne Foitzik Olaf Fritsche

“Beautifully illustrated with color photographs, the book offers a view into parallels between seemingly out-of-this-world ant societies and our own, including cities, an intense work ethic, division of labor, intragroup cooperation combined with genocidal outgroup warfare, even a kind of to-the-death national loyalty. The authors’ scientific rigor is matched by their joy in their subjects.”—The Wall Street Journal Shortlisted for the 2022 Helen and Kurt Wolff Translator’s Prize This sweeping portrait of the world’s uncontested six-legged conquerors will open your eyes to the secret societies thriving right beneath your feet—and shift your perspective on humanity. The closer you get to ants, the more human they look. Ants build megacities, tend gardens, wage wars, and farm livestock. Ants have flourished since the age of the dinosaurs. There are one million ants for every one of us. Engineered by nature to fulfill their particular roles, ants flawlessly perform a complex symphony of tasks to sustain their colony—seemingly without a conductor—from fearsome army ants, who stage twelve-hour hunting raids where they devour thousands, to gentle leafcutters cooperatively gardening in their peaceful underground kingdoms. Acclaimed biologist Susanne Foitzik has traveled the globe to study these master architects of Earth. Joined by journalist Olaf Fritsche, Foitzik invites readers deep into her world in both the field and the lab. Exploring these insects’ tiny yet incredible lives will inspire new respect for ants as a global superpower. Publisher’s note: Planet of the Ants was previously published in hardcover as Empire of Ants.

Planet of the Bugs: Evolution and the Rise of Insects

by Scott Richard Shaw

Dinosaurs, however toothy, did not rule the earth--and neither do humans. But what were and are the true potentates of our planet? Insects, says Scott Richard Shaw--"millions" and "millions" of insects. Starting in the shallow oceans of ancient Earth and ending in the far reaches of outer space--where, Shaw proposes, insect-like aliens may have achieved similar preeminence--"Planet of the Bugs" spins a sweeping account of insects' evolution from humble arthropod ancestors into the bugs we know and love (or fear and hate) today. Leaving no stone unturned, Shaw explores how evolutionary innovations such as small body size, wings, metamorphosis, and parasitic behavior have enabled insects to disperse widely, occupy increasingly narrow niches, and survive global catastrophes in their rise to dominance. Through buggy tales by turns bizarre and comical--from caddisflies that construct portable houses or weave silken aquatic nets to trap floating debris, to parasitic wasp larvae that develop in the blood of host insects and, by storing waste products in their rear ends, are able to postpone defecation until after they emerge--he not only unearths how changes in our planet's geology, flora, and fauna contributed to insects' success, but also how, in return, insects came to shape terrestrial ecosystems and amplify biodiversity. Indeed, in his visits to modern earth's hyperdiverse rain forests to highlight the current insect extinction crisis, Shaw reaffirms just how critical these tiny beings are to planetary health and human survival. In this age of honeybee die-offs and bedbugs hitching rides in the spines of library books, "Planet of the Bugs "charms with humor, affection, and insight into the world's six-legged creatures, revealing an essential importance that resonates across time and space.

A Planet of Viruses: Third Edition

by Carl Zimmer

&“A captivating primer to the world of viruses that requires zero background in biology . . . a suitable first introduction to this fascinating part of our world.&” —The Inquisitive Biologist In 2020, an invisible germ—a virus—emerged and wholly upended our lives. We&’ve now become familiar with the new virus that gave us Covid-19—but viruses also cause a vast range of other diseases, including one disorder that makes people sprout branch-like growths as if they were trees. Viruses have been a part of our lives for so long that we are actually part virus: the human genome contains more DNA from viruses than our own genes. Meanwhile, scientists are discovering viruses everywhere they look: in the soil, in the ocean, even in deep caves miles underground. Fully revised and updated, with new illustrations and a new chapter about coronaviruses and the spread of Covid-19, this third edition of Carl Zimmer&’s &“information-packed, superbly readable&” A Planet of Viruses (Booklist, starred review) pulls back the veil on this hidden world. It presents the latest research on how viruses hold sway over our lives and our biosphere, how viruses helped give rise to the first life-forms, how viruses are producing new diseases, how we can harness viruses for our own ends, and how viruses will continue to control our fate as long as life endures. &“Zimmer is one of the best science writers we have today.&” —Rebecca Skloot, New York Times–bestselling author of The Immortal Life of Henrietta Lacks

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Showing 59,151 through 59,175 of 83,299 results