Sir James Dewar was a major figure in British chemistry for around 40 years. He held the posts of Jacksonian Professor of Natural Philosophy at Cambridge (1875-1923) and Fullerian Professor of Chemistry at the Royal Institution (1877-1923) and is remembered principally for his efforts to liquefy hydrogen successfully in the field that would come to be known as cryogenics. His experiments in this field led him to develop the vacuum flask, now more commonly known as the thermos, and in 1898 he was the first person to successfully liquefy hydrogen. A man of many interests, he was also, with Frederick Abel, the inventor of explosive cordite, an achievement that involved him in a major legal battle with Alfred Nobel. Indeed, Dewar's career saw him involved in a number of public quarrels with fellow scientists; he was a fierce and sometimes unscrupulous defender of his rights and his claims to priority in a way that throws much light on the scientific spirit and practice of his day. This, the first scholarly biography of Dewar, seeks to resurrect and reinterpret a man who was a giant of his time, but is now sadly overlooked. In so doing, the book will shed much new light on the scientific culture of the late-nineteenth and early-twentieth centuries and the development of the field of chemistry in Britain.

Sir James Dewar was a major figure in British chemistry for around 40 years. He held the posts of Jacksonian Professor of Natural Philosophy at Cambridge (1875-1923) and Fullerian Professor of Chemistry at the Royal Institution (1877-1923) and is remembered principally for his efforts to liquefy hydrogen successfully in the field that would come to be known as cryogenics. His experiments in this field led him to develop the vacuum flask, now more commonly known as the thermos, and in 1898 he was the first person to successfully liquefy hydrogen. A man of many interests, he was also, with Frederick Abel, the inventor of explosive cordite, an achievement that involved him in a major legal battle with Alfred Nobel. Indeed, Dewar's career saw him involved in a number of public quarrels with fellow scientists; he was a fierce and sometimes unscrupulous defender of his rights and his claims to priority in a way that throws much light on the scientific spirit and practice of his day. This, the first scholarly biography of Dewar, seeks to resurrect and reinterpret a man who was a giant of his time, but is now sadly overlooked. In so doing, the book will shed much new light on the scientific culture of the late-nineteenth and early-twentieth centuries and the development of the field of chemistry in Britain.

The development of molecular physics and physical chemistry cannot be understood without a knowledge of the work of Dutch physicist Johannes Diderik van der Waals. His doctoral thesis of 1873 was the first theory of liquids and gases in which the essential differences and similarities of these two phases were interpreted in terms of the properties of the constituent molecules. This view contradicted the work of Mach, Ostwald, Duhem and other "energeticists" and provides the foundation for our current understanding of fluids. In the years since the end of World War II, there has been a re-appraisal of van der Waals's work, which has established his historic place as one of the founders of molecular science. This is the only biography of Johannes van der Waals and should be read by anyone with an interest in the history of physics and chemistry, and its most important innovator.

Why does matter stick together? Why do gases condense to liquids, and liquids to solids? This book provides a detailed historical account of how some of the leading scientists of the past three centuries have tried to answer these questions. The topic of cohesion and the study of intermolecular forces has been an important component of physical science research for hundreds of years. This book is organised into four broad periods of advances in our understanding. The first three are associated with Newton, Laplace and van der Waals. The final section gives an account of the successful use in the twentieth century of quantum mechanics and statistical mechanics to resolve most of the remaining problems. The book will be of primary interest to physical chemists and physicists, as well as historians of science interested in the historical origins of our modern day understanding of cohesion.