In 2020, the Russian nuclear industry turned 75 years old. The energy of the atom is amazing and universal - it is the basic and inexhaustible energy of the Universe. It is used in many areas of life, the most important thing is to use it peacefully and wisely, because, as the founder of the nuclear industry, Igor Kurchatov, said, atomic energy can be turned “into a powerful source of energy that brings prosperity and joy to all people on Earth.” The author of the book is professor Department of Theoretical Physics named after. E. V. Shpolsky and scientific director of the Scientific Center for Functional and Nanomaterials of the Moscow Pedagogical State University Irina Razumovskaya. Edition with augmented reality.