Black Horizons is the memoir of an orphan who went from the bottom to become a pioneering aviator, businessman and politician in the post-Tuskegee Airmen era. As a poor African-American youngster picking cotton in a 1930s Tennessee field, U.L. Rip Gooch would look to the sky as airplanes flew overhead and think about escaping to a better life. Soon after World War II, he earned his pilot's license with "Chief" C. Alfred Anderson, but found that racist hiring practices among airlines and other companies did not allow employment of black aviators, even those who gained fame as Tuskegee Airmen. Rip fought back using business principles instead of violence. In time he built a million-dollar aviation business selling Mooney Aircraft in the Air Capital of the World (Wichita, Kansas), accrued 20,000 flight hours, and became one of the few black politicians in one of the most conservative states in the nation. *** "Sen. Rip Gooch is a man of integrity, a role model and a leader. He has served the people of Wichita and Kansas in ways that can never be measured." - Kathleen Sebelius, former governor of Kansas *** "As told in this book, the life of Rip Gooch has been a combination of joys and sorrows, challenges, opportunities and successes." - George Haley, former U.S. ambassador to Gambia

This book overviews the extensive literature on apparent cosmological and black hole horizons. In theoretical gravity, dynamical situations such as gravitational collapse, black hole evaporation, and black holes interacting with non-trivial environments, as well as the attempts to model gravitational waves occurring in highly dynamical astrophysical processes, require that the concept of event horizon be generalized. Inequivalent notions of horizon abound in the technical literature and are discussed in this manuscript. The book begins with a quick review of basic material in the first one and a half chapters, establishing a unified notation. Chapter 2 reminds the reader of the basic tools used in the analysis of horizons and reviews the various definitions of horizons appearing in the literature. Cosmological horizons are the playground in which one should take baby steps in understanding horizon physics. Chapter 3 analyzes cosmological horizons, their proposed thermodynamics, and several coordinate systems. The remaining chapters discuss analytical solutions of the field equations of General Relativity, scalar-tensor, and f(R) gravity which exhibit time-varying apparent horizons and horizons which appear and/or disappear in pairs. An extensive bibliography enriches the volume. The intended audience is master and PhD level students and researchers in theoretical physics with knowledge of standard gravity.

This text presents the author's inspirational life story, told in his own words. Olson recounts a life lived on and for the land, from the wonder of boyhood fishing expeditions, to decades-long conservation battles.

Presents the Pulitzer Prize-winning collection of the complete poems of twentieth-century American poet Carl Sandburg.

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During the last decades, soil organic carbon (SOC) attracted the attention of a much wider array of specialists beyond agriculture and soil science, as it was proven to be one of the most crucial components of the earth’s climate system, which has a great potential to be managed by humans. Soils as a carbon pool are one of the key factors in several Sustainable Development Goals, in particular Goal 15, “Protect, restore and promote sustainable use of terrestrial ecosystems, sustainably manage forests, combat desertification and halt and reverse land degradation and halt biodiversity loss” with the SOC stock being explicitly cited in Indicator 15.3.1. This technical manual is the first attempt to gather, in a standardized format, the existing data on the impacts of the main soil management practices on SOC content in a wide array of environments, including the advantages, drawbacks, and constraints. This manual presents different sustainable soil management (SSM) practices at different scales and in different contexts, supported by case studies that have been shown with quantitative data to have a positive effect on SOC stocks and successful experiences of SOC sequestration in practical field applications. Volume 2 includes a description of hot spots of SOC stocks. This manual defines hot spots of SOC as areas that represent a proportionally little of the global land surface but on which SOC storage is highly effective; bright spots as large land areas with low SOC stocks per km2 that represent a potential for further carbon sequestration.