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In Shaunta Grimes' middle-grade novel Center of Gravity, a girl loses her mom, and her dad remarries quickly, so she must rebuild her life and friendships. Tessa is an anxious person, but it's become worse since her mother died a few months ago. To calm herself down she cuts out photos of missing kids—from milk cartons—and keeps them in a file. It helps her feel like she's not alone. When her dad announces suddenly that he's getting married—and that they're moving, Tessa must navigate new friendships and a new stepmother. She knows she should let go of old habits, but that's easier said than done. Her struggle is one that many readers will understand.
Stranded light-years from home, Major Andrew Grayson and his crew are on a desperate mission to discover the Lankies' secrets. They can't let what they've found die with them. Nine hundred light-years from home, Major Andrew Grayson and the crew of NACS Washington are marooned in a sunless system with limited water, reactor fuel, and food. The last hope for survival is to go where nothing human has gone before. After embarking on a scouting mission to the only moon with surface signs of life, Andrew and his Special Tactics Team make two startling discoveries. One is a dream: a form of protein and plant life that could save the starving humans in the rogue system. The second is a nightmare: this harvested rock is infested with Lankies. Far from the seemingly mindless aggressors Andrew has battled for years, these show a terrifying awareness, and they have surprising secrets of their own hidden away in the darkness. When the Lankies sense an uninvited presence in their world, Andrew's operation becomes an expedition to hell. The odds against his small crew are stacked high. Of all the mysteries of space, how to escape with their lives is the greatest unknown of all.
Low Centre of Gravity finds Michael Dennis in familiar territory. You'll laugh. You'll cry. Dennis' poems continue to be the narratives of movies you'd like to someday see. These poems ask the questions you'd really like answered, sauntering into the room and staking claim. The story-telling continues, the good, the bad and the sadly tragic. With Low Centre of Gravity Dennis remains "direct, curious, pissed off and honest".
"Body Physics was designed to meet the objectives of a one-term high school or freshman level course in physical science, typically designed to provide non-science majors and undeclared students with exposure to the most basic principles in physics while fulfilling a science-with-lab core requirement. The content level is aimed at students taking their first college science course, whether or not they are planning to major in science. However, with minor supplementation by other resources, such as OpenStax College Physics, this textbook could easily be used as the primary resource in 200-level introductory courses. Chapters that may be more appropriate for physics courses than for general science courses are noted with an asterisk symbol (*). Of course this textbook could be used to supplement other primary resources in any physics course covering mechanics and thermodynamics"--Textbook Web page.
A collection of analyses on the concept and application of center of gravity. As military professionals set out to do their work, the planning done prior to beginning operations is crucial; and, if that planning hinges on identifying the center of gravity, how the concept is used, or not, could be paramount.
Two classic works of military strategy that shaped the way we think about warfare: The Art of War by Sun Tzu and On War by Karl von Clausewitz, together in one volume “Civilization might have been spared much of the damage suffered in the world wars . . . if the influence of Clausewitz’s On War had been blended with and balanced by a knowledge of Sun Tzu’s The Art of War.”—B. H. Liddel Hart For two thousand years, Sun Tzu’s The Art of War has been the indispensable volume of warcraft. Although his work is the first known analysis of war and warfare, Sun Tzu struck upon a thoroughly modern concept: “The supreme art of war is to subdue the enemy without fighting.” Karl von Clausewitz, the canny military theorist who famously declared that war is a continuation of politics by other means, also claims paternity of the notion “total war.” On War is the magnum opus of the era of the French Revolution and the Napoleonic wars. Now these two great minds come together in a single volume that also features an introduction by esteemed military writer Ralph Peters and the Modern Library War Series introduction by Caleb Carr, New York Times bestselling author of The Alienist. (The cover and text refer to The Art of War as The Art of Warfare, an alternate translation of the title.)
Achieving believable motion in animation requires an understanding of physics that most of us missed out on in art school. Although animators often break the laws of physics for comedic or dramatic effect, you need to know which laws you’re breaking in order to make it work. And while large studios might be able to spend a lot of time and money testing different approaches or hiring a physics consultant, smaller studios and independent animators have no such luxury. This book takes the mystery out of physics tasks like character motion, light and shadow placement, explosions, ocean movement, and outer space scenes, making it easy to apply realistic physics to your work. Physics concepts are explained in animator’s terms, relating concepts specifically to animation movement and appearance. Complex mathematical concepts are broken down into clear steps you can follow to solve animation problems quickly and effectively. Bonus companion website at www.physicsforanimators.com offers additional resources, including examples in movies and games, links to resources, and tips on using physics in your work. Uniting theory and practice, author Michele Bousquet teaches animators how to swiftly and efficiently create scientifically accurate scenes and fix problem spots, and how and when to break the laws of physics. Ideal for everything from classical 2D animation to advanced CG special effects, this book provides animators with solutions that are simple, quick, and powerful.
Archimedes, the Center of Gravity, and the First Law of Mechanics deals with the most fundamental aspects of physics. The book describes the main events in the life of Archimedes and the content of his works. It goes on to discuss a large number of experiments relating to the equilibrium of suspended bodies under the influence of Earth's gravitational force. All experiments are clearly described and performed with simple, inexpensive materials. These experiments lead to a clear conceptual definition of the center of gravity of material bodies and illustrate practical procedures for locating it precisely. The conditions of stable, neutral, and unstable equilibrium are analyzed. Many equilibrium toys and games are described and explained. Historical aspects of the concept are presented, together with the theoretical values of center of gravity obtained by Archimedes. The book also explains how to build and calibrate precise balances and levers. Several experiments are performed leading to a mathematical definition of the center of gravity and the first law of mechanics, also called the law of the lever. Consequences of this law and different explanations of it are described at the end of the book, together with an exhaustive analysis of the works of Euclid and Archimedes.
With this book as your guide, you can learn to build these amazing short lived sculptures wherever you find a few rocks, and a few minutes. You'll learn how the simple physics of shape, weight, and friction make it all possible. Then apply that knowledge to create balanced sculptures yourself, with six detailed lessons on various styles, from easy to challenging.