Fiodar Fiodaraŭ
Fiodar Fiodaraŭ (Belarusian: Фёдар Іванавіч Фёдараў, Fiodar Ivanavič Fiodaraŭ, Russian: Фёдор Иванович Фёдоров, Fedor Ivanovich Fedorov), June 19, 1911–October 13, 1994, was a Soviet and Belarusian physicist whose scientific interests ranged from optics and spectroscopy to the theory of elementary particles.