The Experimental Fire

A 400-year history of the development of alchemy in England that brings to light the evolution of the practice. In medieval and early modern Europe, the practice of alchemy promised extraordinary physical transformations. Who would not be amazed to see base metals turned into silver and gold, hard iron into soft water, and deadly poison into elixirs that could heal the human body? To defend such claims, alchemists turned to the past, scouring ancient books for evidence of a lost alchemical heritage and seeking to translate their secret language and obscure imagery into replicable, practical effects. Tracing the development of alchemy in England over four hundred years, from the beginning of the fourteenth century to the end of the seventeenth, Jennifer M. Rampling illuminates the role of alchemical reading and experimental practice in the broader context of national and scientific history. Using new manuscript sources, she shows how practitioners like George Ripley, John Dee, and Edward Kelley, as well as many previously unknown alchemists, devised new practical approaches to alchemy while seeking the support of English monarchs. By reconstructing their alchemical ideas, practices, and disputes, Rampling reveals how English alchemy was continually reinvented over the space of four centuries, resulting in changes to the science itself. In so doing, The Experimental Fire bridges the intellectual history of chemistry and the wider worlds of early modern patronage, medicine, and science.

he history of chemistry is a story of human endeavor-and as er T ratic as human nature itself. Progress has been made in fits and starts, and it has come from all parts of the globe. Because the scope of this history is considerable (some 100,000 years), it is necessary to impose some order, and we have organized the text around three dis cemible-albeit gross--divisions of time: Part 1 (Chaps. 1-7) covers 100,000 BeE (Before Common Era) to the late 1700s and presents the background of the Chemical Revolution; Part 2 (Chaps. 8-14) covers the late 1700s to World War land presents the Chemical Revolution and its consequences; Part 3 (Chaps. 15-20) covers World War I to 1950 and presents the Quantum Revolution and its consequences and hints at revolutions to come. There have always been two tributaries to the chemical stream: experiment and theory. But systematic experimental methods were not routinely employed until the 1600s-and quantitative theories did not evolve until the 1700s-and it can be argued that modem chernistry as a science did not begin until the Chemical Revolution in the 1700s. xi xii PREFACE We argue however that the first experiments were performed by arti sans and the first theories proposed by philosophers-and that a rev olution can be understood only in terms of what is being revolted against.

This book presents the comprehensive results of experimental and numerical investigations of glass façade breakage behavior under fire conditions. First of all, full-scale frame and point-supported glass façades, incorporating single, double and coated glazing, were tested under pool fire conductions. The results determined the effects of different glass frames, types of glass, and thermal shocks on breakage behavior. Small-scale tests, using the Material Testing System (MTS) 810, Netzsch Dilatometer and FE-SEM, were also performed at different temperatures to determine the basic mechanical properties of glazing. In addition, a three-dimensional dynamic model was developed to predict stress distribution, crack initiation and propagation, and has since been employed to identify the breakage mechanisms of different types of glass façade. The numerical results showed very good agreement with the experimental results and verified the model’s ability to accurately predict breakage. Lastly, a theoretical model based on incident heat flux was developed to predict the breakage time and heat transfer in glazing, which served to reveal the nature of interactions between fire and glass.

Structural Fire Resistance Experimental Research – Priority Needs of U.S. Industry provides a synthesis of stakeholder input to a prioritized agenda for research at the National Fire Research Laboratory (NFRL) at the National Institute of Standards and Technology (NIST) designed to accelerate the implementation of performance-based fire engineering for structures. The NFRL presents a broad range of unanswered questions regarding the performance of real structures in fire conditions, and informs performance-based design methods and standards in this field. The authors conducted a comprehensive literature review of large-scale structural fire testing and compiled research needs from a variety of sources. The book addresses major issues of broad concern in the fire community, such as real fire exposure and structural response, composite floor system performance, enhancing modeling performance, and understanding the embedded safety features in design methods. It concludes with a prioritized set of research recommendations for the NIST facility. The scope of issues addressed and broad range of content make this a valuable book for researchers in all aspects of fire resistance experimentation. It will also be useful for those who work with engineering standards for structures.