Nikolai Kardashev
Soviet and Russian astrophysicist (1932–2019)
Nikolai Kardashev
Nikolai Semyonovich Kardashev (25 April 1932 – 3 August 2019) was a Soviet and Russian astrophysicist best known for the Kardashev scale, which measures a civilization's status in technological evolution based on the amount of energy it is capable of harnessing and using. He was also the deputy director of the Astro Space Center of the Lebedev Physical Institute of the Russian Academy of Sciences.
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