It has given me no small pleasure to learn that you are engaged in publishing an American edition of the Rev. Jean Paul Perrin’s “History of the Old Waldenses, anterior to the Reformation.” In the execution of this undertaking, you are undoubtedly rendering an important service to the cause of evangelical truth and order. It is indeed wonderful that a work so interesting, and so truly instructive and valuable, which has been more than two centuries before the public, and which was translat...

How do we know that molecules really exist? An important clue came from Brownian movement, a concept developed in 1827 by botanist Robert Brown, who noticed that tiny objects like pollen grains shook and moved erratically when viewed under a microscope. Nearly 80 years later, in 1905, Albert Einstein explained this "Brownian motion" as the result of bombardment by molecules. Einstein offered a quantitative explanation by mathematically estimating the average distance covered by the particl...

#1 NEW YORK TIMES BESTSELLER • “A whirlwind tour of fundamental physics and cosmology.”—The Wall Street Journal“Fascinating . . . a wealth of ideas [that] leave us with a clearer understanding of modern physics in all its invigorating complexity.”—Los Angeles TimesWhen and how did the universe begin? Why are we here? What is the nature of reality? Is the apparent “grand design” of our universe evidence of a benevo...

Originally published in 1916. PREFACE: The present book is intended, as far as possible, to give an exact insight into the theory of Relativity to those readers who, from a general scientific and philosophical point of view, are interested in the theory, but who are not conversant with the mathematical apparatus of theoretical physics. The work presumes a standard of education corresponding to that of a university matriculation examination, and, despite the shortness of the book, a fair am...

"A sharp eye and an ingenious mind are at work on every page. . . . Read this book. . . . Then go forth, enjoy the view, and impress your friends." —Laurence A. Marschall, Natural HistoryHow heavy is that cloud? Why can you see farther in rain than in fog? Why are the droplets on that spider web spaced apart so evenly?If you have ever asked questions like these while outdoors, and wondered how you might figure out the answers, thi...

Any literate person should be familiar with the central ideas of modern science. In his sparkling new book, Peter Atkins introduces his choice of the ten great ideas of science. With wit, charm, patience, and astonishing insights, he leads the reader through the emergence of the concepts, and then presents them in a strikingly effective manner. At the same time, he works into his engaging narrative an illustration of the scientific method and shows how simple ideas can have enormousconsequ...

The double-slit experiment has been widely discussed since the founding of quantum mechanics. Nearly all textbooks on quantum mechanics use the experiment to illustrate the wave-particle duality of light and matter. According to Richard Feynman, the double-slit experiment contains the only mystery of quantum mechanics. After we have unveiled the mystery, we will be able to understand quantum mechanics.What is the mystery then? The mystery lies in the explanation of the counterintui...

This book provides a beginner’s guide to this difficult and rarely understood topic.Quantum Physics is not generally easily understood and is a mystery to most people. Along with the theory of relativity, is one of the two major revolutionary ideas that shook the world of physics to the core in the early 20th century.The author takes a complex subject and breaks it down into easy to understand chapters that will provide anyone with a fantastic insight into the amazing world...

The book gives a comprehensive introduction for interested general readers, into the development and structure of concepts, ideas and theory formation about the elementary building blocks of matter, the forces with which these particles interact and about the fundamental nature of space itself. Einsteins theory of the cosmos and the recent discovery of the presence of a dark energy which leads to an accelerated expansion of cosmic space, provide the background for the most astonishing rece...

The Secret of Life: Cosmic Rays and Radiations of Living Beings by Georges Lakhovsky is a groundbreaking exploration of the profound connections between cosmic energies and the vitality of all living organisms. Originally published in the early 20th century, this innovative work presents Lakhovsky's revolutionary theories on the role of cosmic rays and electromagnetic radiations in maintaining health, influencing cellular function, and even determining the very essence of life itself.

Written by the founder of quantum theory, a Nobel Prize winner, this classic volume is still recognized as among the best introductions to thermodynamics. It is a model of conciseness and logic, ideally suited to the needs of both students and research workers in physics and chemistry. Based on Planck's original papers, the book offers a uniform point of view for the entire field. Rejecting the earlier approaches of Helmholtz and Maxwell, Planck makes no assumptions regarding the nature of...

Marie Curie's book 'Marie Curie: The Radio-Active Substances' is a landmark work in the field of science, detailing her groundbreaking research on radioactivity. Curie's literary style is precise and informative, providing detailed explanations of her experiments and discoveries. The book is a significant contribution to the scientific community, shedding light on the properties of radio-active substances and their implications for future research. Curie's work revolutionized the field of ...