Template:Are You Sure/April 18: Difference between revisions

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[[File:San Francisco 1906 earthquake Post-and-Grant-Avenue.jpg|thumb|175px|link=1906 San Francisco earthquake (nonfiction)|[[1906 San Francisco earthquake (nonfiction)|San Francisco Earthquake of 1906]]: Ruins in vicinity of Post and Grant Avenue, looking northeast.]]
• ... that the '''[[1906 San Francisco earthquake (nonfiction)|1906 San Francisco earthquake]]''' struck the coast of Northern California at 5:12 a.m. on April 18 with an estimated moment magnitude of 7.9; that devastating fires soon broke out in the city and lasted for several days; and that as a result, up to 3,000 people died and over 80% of the city of San Francisco was destroyed?
• ... that the '''[[1906 San Francisco earthquake (nonfiction)|1906 San Francisco earthquake]]''' struck the coast of Northern California at 5:12 a.m. on April 18 with an estimated moment magnitude of 7.9; that devastating fires soon broke out in the city and lasted for several days; and that as a result, up to 3,000 people died and over 80% of the city of San Francisco was destroyed?


• ... that mathematician '''Karl Mikhailovich Peterson (nonfiction)|Karl Mikhailovich Peterson]]''' gave, in his graduation dissertation (1853, but not published until later), an early formulation of the fundamental equations of the surface theory, now usually known as Gauss–Codazzi equations, sometimes Peterson–Codazzi equations?
• ... that the '''[[Bathysquare]]''' is a two-dimensional bathysphere with sufficient [[Artificial intelligence (nonfiction)|artificial intelligence]] to escape captivity and hide from its designer, and that its location is currently unknown?

Latest revision as of 03:19, 18 April 2022

• ... that the 1906 San Francisco earthquake struck the coast of Northern California at 5:12 a.m. on April 18 with an estimated moment magnitude of 7.9; that devastating fires soon broke out in the city and lasted for several days; and that as a result, up to 3,000 people died and over 80% of the city of San Francisco was destroyed?

• ... that the Bathysquare is a two-dimensional bathysphere with sufficient artificial intelligence to escape captivity and hide from its designer, and that its location is currently unknown?

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