Inventors from the Russian Empire

Julian Leopold Ochorowicz (Polish pronunciation: ['juljan lɛˈɔpɔld ɔxɔˈrɔvit͡ʂ]; outside Poland also known as Julien Ochorowitz; Radzymin, 23 February 1850 – 1 May 1917, Warsaw) was a Polish philosopher, psychologist, inventor (precursor of radio and television), poet, publicist, and leading exponent of Polish Positivism.

Mikhail Semyonovich Tsvet, also spelt Tsvett, Tswett, Tswet, Zwet, and Cvet (Russian: Михаил Семёнович Цвет; 14 May 1872 – 26 June 1919) was a Russian-Italian botanist who invented chromatography. His last name is Russian for "colour" and is also the root word of "flower."