A Course of Lectures on the Theory and Practice of Twisted Flows . H. 1 (lectures 1-5) by Vladimir Afanasievich Arkhipov is a unique scientific work that immerses the reader in the complex and fascinating world of hydrodynamics, in particular, twisted streams. This work will be a real discovery for students, graduate students and specialists in the field of physics, mechanics and engineering, seeking to deepen their knowledge in this highly specialized field. In the first part of the course of lectures, Arkhipov shares his deep knowledge about twisted streams, which play a key role in various natural and man-made processes. It looks at the fundamentals of the theory, from basic concepts to more complex concepts, making the material available to a wide audience. Each lecture is a carefully structured block that includes both theoretical aspects and practical examples, which allows the reader not only to assimilate the material, but also to apply it in practice. This book will be of interest not only to students of technical specialties, but also to everyone who is fond of physics and mechanics. Engineers, researchers and teachers will find in it useful ideas and concepts that can be used in their professional activities. At the same time, lovers of science, seeking to understand the complex phenomena of nature, will be able to discover a lot of new facts and ideas. The topics raised in the book cover a wide range of issues related to fluid dynamics, including conservation laws, vortex structures, and their impact on the environment. Arkhipov not only explains the theoretical foundations, but also demonstrates how twisted flows affect various processes, from atmospheric phenomena to the work of modern technologies. This makes the book relevant not only for the scientific community, but also for those who are interested in the application of science in real life. The style of the author is distinguished by clarity and logical presentation, which allows the reader to easily follow his thought. Vladimir Afanasievich Arkhipov is an experienced teacher and researcher, and his approach to learning is based on a deep understanding of the subject and the ability to convey complex ideas in a simple and accessible language. This quality makes his lectures especially valuable for those who are just beginning their journey in studying the theory of swirling streams. In addition, Arkhipov is the author of other well-known works on hydrodynamics and mechanics, which confirms his authority in this field. Readers interested in deeper study of the topic may pay attention to its other publications, which are also important sources of knowledge for students and professionals. A Course of Lectures on the Theory and Practice of Twisted Flows . H. 1 (lectures 1-5)" is not just a textbook, but a whole world of knowledge that opens up to the reader. Whether you’re looking for high-quality literature on hydrodynamics, flow theory, or just want to expand your horizons in physics, this book will be a great choice. Do not miss the opportunity to immerse yourself in the fascinating world of swirling streams with Vladimir Afanasyevich Arkhipov - this is a journey that will enrich your mind and inspire new discoveries!