"Entertaining Physics . Kn. 1. Edition 21" is an outstanding work by Yakov Isaakovich Perelman, which has for many years inspired and captivated readers who want to immerse themselves in the world of physics. This book is not just a textbook, but a real encyclopedia of the amazing phenomena that surround us in everyday life. Perelman, possessing a unique gift to explain complex scientific concepts in a simple and accessible language, makes physics not only understandable, but also fascinating. In the first book of “Entertaining Physics”, the author covers a wide range of topics, ranging from the basics of mechanics to thermodynamics. Each chapter is filled with vivid examples, entertaining tasks and intriguing experiments that will help the reader not only to assimilate the material, but also to see physics in a new light. Perelman uses many analogies and metaphors to make abstract concepts more tangible. For example, it explains Newton's laws through simple life situations, allowing readers to easily understand how physics works in the real world. This book will be interesting not only for schoolchildren and students, but also for everyone who wants to refresh their knowledge or just admire the beauty of physics. If you have ever thought about how the world around you works, or would like to understand why the sky is blue and the stars shine, then “Entertaining physics” will be a real discovery for you. It is suitable for readers of any age - from inquisitive teenagers to adults seeking new knowledge. The topics raised in the book cover not only physical laws, but also philosophical issues related to scientific knowledge. Perelman masterfully shows how physics permeates all aspects of our lives, and how understanding these laws can enrich our experience. The book makes you think about how much amazing is hidden in everyday phenomena, and how important it is to develop scientific thinking. Perelman's style is lively and easy. He is able to captivate the reader, make him laugh and wonder, and also encourages to think . In his works there is always an element of the game, which makes the learning process not only useful, but also pleasant. In addition to "Entertaining Physics", Perelman is also known for his books on mathematics, such as "Entertaining Mathematics", where he applies a similar approach to explaining mathematical concepts. If you are looking for books similar in genre, pay attention to “Physics for Dummies” or “The World of Physics” from other authors, but none of them will be able to convey the same sincere passion for science as Perelman’s “Entertaining Physics” . This work not only expands the horizons of knowledge, but also inspires further study of physics and science in general. Thus, “Entertaining physics . Kn. 1. Edition 21 is not just a book, but a real find for anyone who wants to understand how the world works and learn to see physics in every step of their life. Do not miss the opportunity to discover the amazing world of science with the help of Jacob Isaacovich Perelman!