William Thomson (Kelvin) (26.06.1824-17.12.1907) was an English physicist, one of the founders of thermodynamics, and a Fellow of the Royal Society (1851), its president in 1890-95.
Fedor Ivanovich Fedorov ( born 19.06.1911) is a Soviet theoretical physicist and an academician of the Academy of Sciences of the Byelorussian SSR (1966).
Richard Phillips Feynman ( born 11.05.1918) — an American theoretical physicist, one of the creators of modern quantum electrodynamics, a member of the National Academy of Sciences (1954).