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  2. Isotopes of potassium - Wikipedia

    en.wikipedia.org/wiki/Isotopes_of_potassium

    21.95(11) μs IT 38 K (7)+ 39 K 19 20 38.9637064848(49) Stable: 3/2+ 0.932581(44) 40 K [n 7] [n 8] 19 21 39.963998165(60) 1.248(3)×10 9 y β − (89.28%) 40 Ca: 4− 1.17(1)×10 −4: EC (10.72%) 40 Ar: β + (0.001%) [11] 40m K 1643.638(11) keV 336(12) ns IT 40 K: 0+ 41 K 19 22 40.9618252561(40) Stable: 3/2+ 0.067302(44) 42 K 19 23 41.96240231 ...

  3. Twenty Thousand Leagues Under the Seas - Wikipedia

    en.wikipedia.org/wiki/Twenty_Thousand_Leagues...

    Even so, a trace remains of the novel's initial concept, a detail that may have eluded Hetzel: its allusion to an unsuccessful rebellion under a Polish hero, Tadeusz Kościuszko, leader of the uprising against Russian and Prussian control in 1794; [11] Kościuszko mourned his country's prior defeat with the Latin exclamation "Finis Poloniae!"