This book is dedicated to the life and work of the world-famous mechanical scientist Stepan Prokofyevich Timoshenko, who made a great contribution to the development of the mechanics of deformable solids, the author of fundamental works on strength, stability and vibrations of mechanical systems. The scientist’s bright pedagogical talent allowed him to create a number of monographs and textbooks, on which more than one generation of researchers and mechanical engineers was brought up both in our country and abroad. For readers interested in the history of Russian science.