One of the earliest post-Cold War articles about the Tsar Bomba, when the casing went on display—Jane's, Nov. 1992.pic.twitter.com/nCiOtqrhui
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@alanrew Along those lines — 20-30 Mt or so: http://en.wikipedia.org/wiki/1962_Soviet_nuclear_tests …
@wellerstein thanks. I'd heard of the 50-MT one but thought that was exceptional.
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