William Crookes était un chimiste et physicien britannique spécialisé dans la spectroscopie. Il fut un pionnier dans le domaine des tubes à vide, inventant notamment le tube de Crookes. Ses travaux sur la technologie du vide et l'invention du radiomètre représentent une contribution scientifique majeure. Ses découvertes ont façonné notre compréhension des principes physiques fondamentaux.
Published in 1874, this collection of reports by chemist and scientific journalist William Crookes describes his controversial research into psychic forces. Crookes outlines his experiments upon the phenomena of spiritualism from 1870 to 1874, including his testing of famous mediums such as D. D. Home, Kate Fox and Florence Cook.
The book delves into the science of combustion, demonstrating how different substances burn more intensely in oxygen compared to air. Through experiments with sulfur and phosphorus, it illustrates the dramatic increase in luminosity and energy when these elements are introduced to oxygen. The text emphasizes the power of oxygen in enhancing combustion, hinting at its essential role in the atmosphere. The author carefully conducts these experiments to showcase the reactions, while also noting the potential dangers involved in handling highly combustible materials.
Delve into the world of industrial science with Sir William Crookes' seminal work, The Chemical News and Journal of Industrial Science. Packed with cutting-edge research, this book is a must-read for anyone interested in the field of chemistry.
This classic work by the renowned British scientist William Crookes presents his pioneering research into the occult and supernatural. Among other things, Crookes investigates the phenomena of spiritualism, telekinesis, and levitation, using scientific instruments to measure and document these apparently paranormal activities. This book is a fascinating look at the intersection of scientific inquiry and the occult.
This comprehensive guide is an essential resource for amateur photographers, providing tips on everything from equipment and lighting to composition and developing techniques. The authors draw on their extensive experience in the field to offer practical advice that will help readers take their photography to the next level.
This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
In this fascinating handbook, pioneering photographer William Crookes provides a detailed guide to the waxed paper process, a revolutionary photographic technique of the mid-19th century. With step-by-step instructions, practical advice, and helpful illustrations, Crookes' work is an invaluable resource for anyone interested in the history and techniques of early photography.