A theory of Eugene Goldstein doesn't exist.
Physics
Proton Definition
Some of the pictures of Eugene Goldstein can be found by doing an internet search. They can also be found by visiting the Wikipedia page.
Eugen Goldstein is famous for discovering anode rays. Some also credit him with the discovery of the proton. He was a German physicist born in Poland in 1850.
Weißensee Cemetery.
Goldstein studied anode (canal rays) and contributed to the discovery of protons.
Laurence Goldstein was born in 1943.
Martin Goldstein was born in 1905.
Ladislas Goldstein was born in 1906.
Joseph I. Goldstein was born in 1939.
Jørn Goldstein was born in 1953.