Browse episode ratings trends for Operation «Helium». Simply click on the interactive rating graph to explore the best and worst of Operation «Helium»'s 5 episodes.
Best Episodes of Operation «Helium»
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Worst Episodes of Operation «Helium»
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Operation «Helium» Episode Guide
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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.
The first episode of Operation «Helium» aired on January 01, 1991.
The last episode of Operation «Helium» aired on January 01, 1993.
