The book "Entertaining tasks and experiments" by Yakov Isaakovich Perelman is a real find for everyone who wants to plunge into the world of science and discover fascinating aspects of physics and mathematics. The publication, which first saw the light of day at the beginning of the 20th century, continues to be relevant and in demand among readers of all ages, from schoolchildren to adults, seeking to expand their knowledge and develop logical thinking. Perelman, known for his vivid and accessible explanations of complex scientific concepts, offers readers not only tasks, but also whole experiments that can be carried out independently. Each task in the book is not just a mathematical puzzle, but a fascinating story that makes you think and look for non-standard solutions. For example, in the process of solving problems, readers may encounter physical paradoxes, optical illusions, and even elements of cybernetics. This makes the book not only useful, but also incredibly interesting for everyone who likes to solve puzzles. Who can like “Entertaining tasks and experiences”? First of all, this book will be an excellent assistant for schoolchildren who are preparing for exams or just want to deepen their knowledge in the field of physics and mathematics . However, not only young people will find something valuable in it .. Adults seeking self-development or wanting to refresh their knowledge will also enjoy working with Perelman’s tasks. In addition, the book will be of interest to parents who want to involve their children in the study of science and do it in a fascinating form. The themes raised in the book are diverse and multi-faceted. Perelman addresses questions relating to mechanics, optics, thermodynamics, and even elementary probability theory. Each task is an opportunity not only to test your knowledge, but also to learn how to think critically, analyze the situation and find optimal solutions. The book demonstrates that science is not only boring formulas and equations, but also an exciting process full of discoveries and amazing facts. Perelman’s style is unique: it combines accessibility and depth, making his work understandable to a wide audience. His other well-known works, such as "Entertaining Physics" and "Entertaining Mathematics", also deserve attention and can be an excellent addition to "Entertaining Tasks and Experiences". Perelman skillfully uses humor and live examples, which makes reading his books easy and exciting. If you are looking for books on physics, mathematics or just want to spend time usefully, solving interesting problems and conducting experiments, “Entertaining tasks and experiments” by Yakov Isaakovich Perelman is what you need. This book will not only enrich your knowledge, but will also give you many hours of exciting pastime. Do not miss the opportunity to discover the world of science through the prism of interesting tasks and experiments!