The gyroscope is currently one of the main elements of modern automated control systems for sea vessels, aircraft, spacecraft, planetary rovers and many other mobile objects. Gyroscopic devices allow you to reduce the pitching of the ship during waves at sea and vibrations of the car when driving on uneven roads, ensure stable movement of bicycles, motorcycles and scooters, carry out a single-rail railway, create a two-wheeled car and many other interesting cars. The desire to tell our curious youth about the nature of the gyroscopic effect, its manifestations and ways of practical use and forms the goal of this book. The third edition, revised and supplemented.