
Operation «Helium»
Операция «Гелий»
Watch Operation «Helium» Online Free on Watchseries. On the example of the history of the discovery of the "solar substance" Helium, the history of the most important discoveries in the field of physics and chemistry of the early XX century is given.
- Genre: Documentary
- Country: Russia
- Director: Semyon Raytburt
- Cast: Nikolai Mamuna, Yevgeniy Burmistrov, Kirill Vats, Gennady Nikiforov, Alexis Avanesoff, Gleb Plaksin, Vsevolod Abdulov,

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