White's law
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What links here
Nikolai Kardashev
History of technology
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Iosif Shklovsky
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Extraterrestrial intelligence
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White hole
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Kardashev scale
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List of Russian people
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1932
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April 25
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Nikolai S. Kardashev
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Nikolai Semenovich Kardashev
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Nikolay Kardashev
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Nikolay Kardashov
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