Gravity From The Ground Up

This book invites the reader to understand our Universe, not just marvel at it. From the clock-like motions of the planets to the catastrophic collapse of a star into a black hole, gravity controls the Universe. Gravity is central to modern physics, helping to answer the deepest questions about the nature of time, the origin of the Universe and the unification of the forces of nature. Linking key experiments and observations through careful physical reasoning, the author builds the reader's insight step-by-step from simple but profound facts about gravity on Earth to the frontiers of research. Topics covered include the nature of stars and galaxies, the mysteries of dark matter and dark energy, black holes, gravitational waves, inflation and the Big Bang. Suitable for general readers and for undergraduate courses, the treatment uses only high-school level mathematics, supplemented by optional computer programs, to explain the laws of physics governing gravity.

Nature Spirituality from the Ground Up invites you to go beyond simply exploring the symbols of nature and encourages you to bury your hands in the earth and work with the real thing. This is a book on green spirituality that makes a difference, empowering you to connect with totems as a part of your spiritual life. Uniquely approaching totems as beings we can give to, rather than take from, Lupa shows how orienting yourself this way deepens your spiritual connection to the earth and helps you rejoin the community of nature. And while most books on totems focus on animals, Nature Spirituality from the Ground Up helps you work with interconnected ecosystems of totems: plants, fungi, minerals, waterways, landforms, and more.

A ball drops to the ground. Leaves fall from a tree. Gravity is at work all around you. But what exactly is gravity? And how does it affect different objects? Read this book to find out! Learn all about matter, energy, and forces in the Exploring Physical Science series—part of the Lightning Bolt BooksTM collection. With high-energy designs, exciting photos, and fun text, Lightning Bolt BooksTM bring nonfiction topics to life!

Take your career to the next level, realize your greatest dreams, and embrace your God-given talents with this practical game plan for your professional and personal life. Too often we remain in jobs that stifle our souls and leave us on the runway of opportunity with the engine of our deepest passion stalled, watching others make their personal vision a reality and build a legacy for their children. But it's never too late to get your dreams off the ground -- God sees great things in your future! If you long to amplify your unique abilities, if you strive to balance personal fulfillment and professional satisfaction, if you dream of fulfilling God's destiny for you, then you are ready to Soar! In Soar! T.D. Jakes reveals how to transform your own unique vision into a powerful contribution to the world. Blending a CEO's practical business acumen with a life coach's dynamic inspiration, Soar! will stir your imagination into action, challenge you to embrace your God-given purpose, and align your character and creativity with your career. Bridging both the corporate and nonprofit worlds, Soar! is a practical and easy-to-follow flight plan for launching the entrepreneurial drive inside of you. You'll learn how to adopt the mindset of people who don't wait to see what will happen but strategically build the wings that will take them to new heights. So buckle your seat belt and prepare for liftoff -- you have been cleared to fly beyond your fears, to absolutely soar!

This is a philosophical treatise on war written by an Oxford grad who served in Afghanistan.

Second edition of a widely-used textbook providing the first step into general relativity for undergraduate students with minimal mathematical background.