Gravity

Quantum Aspects of Gravitation: gravitational waves, polarization, gravitons, vacuum to vacuum transition amplitudes

Gravity doesn't just pull apples from trees—it shapes our bodies, minds, and even our emotions. In PULL, Brennan Spiegel, M.D. reveals how this invisible force influences everything from digestion to depression—and how building gravity resilience can help us find balance, stand stronger, and live longer.

This textbook presents a comprehensive treatment of the theory and implementation of inverse methods in the analysis and interpretation of Earth’s gravity field. By restricting their consideration to a local rather than global level, the authors focus on the use of observations and data that are more sensitive to local mass anomalies. All necessary theoretical aspects are reformulated in terms of a Euclidean framework so that less complex tools from mathematical analysis can be utilized.

Quantum Decoherence, Entropy, and Gravity from Entropic Principles: From Density Matrices to Modified Einstein Equations

This book reviews various modified gravity models, including those with modifications in the pure gravitational sector; those involving extra fields, that is, scalar-tensor and vector-tensor gravity theories; gravity models with Lorentz symmetry breaking; and nonlocal gravity models. The authors discuss both classical and quantum aspects of these theories. The book is unique in bringing together all the current alternatives to Einstein gravity in one source and serves as an excellent starting point for graduate students and other newcomers seeking an overview.

Marine Construction