Article: When it turned out that there would not be enough uranium-235 to make more than one bomb, the implosive lens project was greatly expanded and von Neumann's idea was implemented. Implosion was the only method that could be used with the plutonium-239 that was available from the Hanford Site. He established the design of the explosive lenses required, but there remained concerns about "edge effects" and imperfections in the explosives. His calculations showed that implosion would work if it did not depart by more than 5% from spherical symmetry. After a series of failed attempts with models, this was achieved by George Kistiakowsky, and the construction of the Trinity bomb was completed in July 1945.

Question: In what year was Trinity bomb completed?
1945
Artikel: När det visade sig att det inte skulle finnas tillräckligt med uran-235 för att göra mer än en bomb utökades det implosiva linsprojektet kraftigt och von Neumanns idé genomfördes. Implosion var den enda metod som kunde användas med plutonium-239 som fanns tillgänglig från Hanford Site. Han fastställde utformningen av de explosiva linser som krävdes, men det fanns fortfarande farhågor om "kanteffekter" och brister i sprängmedlen. Hans beräkningar visade att implosion skulle fungera om den inte avvek med mer än 5 % från sfärisk symmetri. Efter en rad misslyckade försök med modeller uppnåddes detta av George Kistiakowsky, och konstruktionen av treenighetsbomben blev klar i juli 1945. Fråga: Vilket år var treenighetsbomben färdig?
Article: When it turned out that there would not be enough uranium-235 to do more than one bomb, the implosive lens project was greatly expanded and von Neumann's idea was implemented. Implosion was the only method that could be used with plutonium-239 available from Hanford Site. He established the design of the explosive lenses required, but there were still concerns about "edge effects" and flaws in the explosives. His calculations showed implosion would work if it did not deviate by more than 5% from spherical symmetry. After a series of failed attempts with models, this was achieved by George Kistiakowsky, and the construction of the Trinity bomb was completed in July 1945. Question: What year was the Trinity bomb completed?
1945
1945