1. Mandelstam, Leonid Isaakovich (1879-1944). 1.1. Progenitor -- 2. Tamm, Igor Evgen'evich (1895-1971). 2.1. Tamm in life. 2.2. A life of a Russian intelligent. 2.3. I.E. Tamm and the formation of domestic physics -- 3. Sakharov, Andrei Dmitrievich (1921-1989). 3.1. For a future…