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The first European self-sustaining nuclear chain reaction is initiated within the Soviet Union's F-1 nuclear reactor.
Related Wikipedia articles
Nuclear chain reaction
When one nuclear reaction causes more
In nuclear physics, a nuclear chain reaction occurs when one single nuclear reaction causes an average of one or more subsequent nuclear reactions, thus leading to the possibility of a self-propagating series or "positive feedback loop" of these reactions. The specific nuclear…Source: Wikipedia (CC BY-SA)
Soviet Union
Country in Eurasia (1922–1991)
The Union of Soviet Socialist Republics (USSR), commonly known as the Soviet Union, was a transcontinental country that spanned much of Eurasia from 1922 until it dissolved in 1991. During its existence, it was the largest country by area, extending across eleven time zones and…Source: Wikipedia (CC BY-SA)
F-1 (nuclear reactor)
Nuclear research reactor in Moscow, Russia
The F-1 is a research reactor operated by the Kurchatov Institute in Moscow, Russia. When started on December 25, 1946, it became the first nuclear reactor in Europe to achieve a self-sustaining nuclear chain reaction. It was still in operation in the beginning of the 2010s,…Source: Wikipedia (CC BY-SA)
December 25
Day of the year
December 25 is the 359th day of the year in the Gregorian calendar; six days remain until the end of the year.Source: Wikipedia (CC BY-SA)