Chemistry is the science concerned with the composition, structure, and properties of matter, as well as the changes matter undergoes during chemical reactions. This science is essential to our modern world. Each material thing in the universe is a chemical and the ability to understand and manipulate these chemicals is responsible for everything from modern food and drugs to plastics and computers. Without our knowledge of chemistry, the world would be a far more mysterious place. It would also be a far, far different place, lacking many of the modern technologies we take for granted in daily life. This field of study is a valuable one for today's student. An introduction to chemistry not only broadens and deepens the student's understanding of the world, but it may also open the doors to important career choices. The chemical industry generates more than 600 billion US dollars in profits. Research and development accounts for a large segment of these dollars, and the job field is growing.

William McPherson, Ph.D. and William Edwards Henderson, Ph.D. were outstanding experts in the world of chemistry. Their comprehensive and well-explained summary of chemistry continues to provide a stable foundation to newcomers to the field.

CONTENTS: Introduction; Oxygen; Hydrogen; Compounds of Hydrogen and Oxygen; The Atomic Theory; Chemical Equations and Calculations; Nitrogen and the Rare Elements:Argon, Helium, Neon, Krypton, Xenon; The Atmosphere; Solutions; Acids, Bases, and Salts:Neutralization; Valence; Compounds of Nitrogen; Reversible Reactions and Chemical Equilibrium; Sulphur and Its Compounds; Periodic Law; The Chlorine Family; Carbon and Some of Its Simpler Compounds; Flames, Illuminants; Molecular Weights, Atomic Weights, Formulas; The Phosphorus Family; Silicon, Titanium, Boron; The Metals; The Alkali Metals; The Alkaline-Earth Family; The Magnesium Family; The Aluminium Family; The Iron Family; Copper, Mercury, and Silver; Tin and Lead; Manganese and Chromium; Gold and the Platinum Family; Some Simple Organic Compounds; Bibliography; Index

Physics is the natural science that examines basic concepts such as energy, force, and space time . . . and all that derives from these, such as mass, charge, matter, and its motion. More broadly, it is the general analysis of nature, conducted in order to understand how the world and the universe behave. Physics is both significant and influential, in part because advances in its understanding have often translated into new technologies, but also because new ideas in physics often resonate with the other sciences, mathematics, and philosophy. For example, advances in the understanding of electromagnetism led directly to the development of new products such as television and computers which have dramatically transformed modern-day society; advances in thermodynamics led to the development of motorized transport; and advances in mechanics inspired the development of calculus.

Dr. Robert Phillips was a professor of physics. His work will help students understand the earliest foundations of this very modern topic.

CONTENTS: The Evolution of Physics; Measurements; Principles; The Various States of Matter; Solution and Electrolytic Dissociation; The Ether; A Chapter in the History of Science:Wireless Telegraphy; The Conductivity of Gases and the Ions; Cathode Rays and Radioactive Bodies; The Ether and Matter; The Future of Physics as Seen from the Beginning of the 20th Century; Atomic Physics.; Quantum Physics; Modern Applications…

Electrical engineering, sometimes referred to as electrical and electronic engineering, is a field of engineering that deals with the study and application of electricity, electronics, and electromagnetism. The field covers a range of subtopics including power, electronics, control systems, signal processing and telecommunications.

George A. Mangrew PhD has worked in the field of electrical engineering for the past 26 years. He has used his expertise to compile the chapters in this book, providing an introductory overview to the topic that will offer students a foundation in this important and growing field of study.

CONTENTS: The Development and Practice of Electrical Engineering; The History of Electrical Engineering; Career in Electrical Engineering; Practical Applications of Electrical Engineering; Synchronous Machines; Carry-Ripple Adder; 21st-Century Robotics; Mobile Phone Firmware; Biomedical Electrical Engineering; Current Research in Electrical Engineering.