Walter R. Johnson Boeken

Atomic Structure Theory is a textbook for students with a background in quantum mechanics. The text is designed to give hands-on experience with atomic structure calculations. Material covered includes angular momentum methods, the central field Schrödinger and Dirac equations, Hartree-Fock and Dirac-Hartree-Fock equations, multiplet structure, hyperfine structure, the isotope shift, dipole and multipole transitions, basic many-body perturbation theory, configuration interaction, and correlation corrections to matrix elements. Numerical methods for solving the Schrödinger and Dirac eigenvalue problems and the (Dirac)-Hartree-Fock equations are given as well. B-spline basis sets are used to carry out sums arising in higher-order many-body calculations. Illustrative problems are provided, together with solutions. FORTRAN programs implementing the numerical methods in the text are included.

Lewis David von Schweinitz was a 19th century scientist who made significant contributions to the fields of botany and mycology. This memoir provides a fascinating look into his life and scientific achievements, and includes a detailed sketch of his labors. This book is a must-read for anyone interested in the history of science or the life of this remarkable scientist.

Originally published in German in 1846, 'Principles of the Mechanics of Machinery and Engineering' is a classic text on the principles of mechanics. This book covers a wide range of topics in detail, including statics, dynamics, kinematics, and the construction of machines. It is an essential reference for anyone involved in the study or practice of mechanical engineering.

This book is an in-depth analysis of the properties of heat and vapor, including a number of practical applications. Walter R. Johnson's research is groundbreaking, and this book is a must-read for anyone interested in the science of heat and vapor.

Focusing on the exploration of coal and ore lands in Somerset County, Pennsylvania, this work is deemed significant by scholars for its contribution to geological literature. It includes detailed maps, profiles, and sections that provide valuable insights into the region's resources. The book is presented in its original print format, preserving any marks or annotations to maintain its authenticity and historical context for future generations.

Designed for beginners, this comprehensive guide to the Greek language covers grammar, vocabulary, syntax, and pronunciation through clear explanations and examples. Each chapter builds foundational knowledge, while an included key allows readers to check their progress. Suitable for self-study or classroom use, it serves as an excellent resource for anyone looking to learn Greek. This facsimile reprint of the 1829 edition preserves the original's cultural significance, despite potential imperfections from its antiquarian nature.

"Atomic Structure Theory" is a comprehensive textbook for students familiar with quantum mechanics, focusing on atomic structure calculations. It covers key topics like angular momentum, Schrödinger and Dirac equations, multiplet structure, and numerical methods. Illustrative problems and FORTRAN programs enhance practical understanding.