"Mechanics. Part 104" is a popular science book that examines the physical laws and principles that govern the movement and interaction of bodies. The author examines in detail all aspects of mechanics, from classical to quantum, revealing their essence and application in the modern world. In this book, the reader will be able to learn about the laws of motion and force, the effect of gravity on objects, the properties of liquids and gases, as well as about various types of energy. The author explains complex physical phenomena in simple and accessible terms, making this book useful for both specialists and the general public. "Mechanics. Part 104" is an exciting journey into the world of physics, which opens up unlimited opportunities for the reader to understand and use physical laws in everyday life.