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1945: Groves drafts Order to Bomb

After returning to Washington from the Trinity test, General Groves learned that General Spaatz was in town. Spaatz was about to take command of the Air Force in the Pacific. Groves met with Spaatz to review all the operational plans as previously agreed to by General LeMay. Now Groves drafts the written directive for the […]

1945: Analysis of soil complete

Herbert Anderson, who’d driven the lead-lined tank into the Trinity test crater and picked up samples of the green glassy soil near Point Zero, completes the radiochemical analysis of the soil that he’s been working on this past week. He tells Oppenheimer that the blast was equal to 18,600* tons of TNT, and that it […]

1945: Third Cable to Potsdam

Harrison’s third cable discusses the availability of future bombs. First one of tested type [i.e., plutonium implosion bomb, Fat Man] should be ready at Pacific base about 6 August. Second one ready about 24 August. Additional ones ready at accelerating rate from possibly three in September to we hope seven or more in December.

1945: Second Cable

Harrison cables Stimson in Potsdam to advise him that the plutonium core for the Fat Man bomb has been cast and completed by the metallurgists at Los Alamos.

1945: Cable to Potsdam

Harrison, responding to Stimson’s cable, sends this word: Operation may be possible any time from August 1 depending on state of preparation of patient and conditions of atmosphere. From point of view of patient only, some cahnce August 1 to 3, good chance August 4 to 5 and barring unexpected relapse almost certain before August […]

1945: Potsdam &cetera

Churchill, Truman, Stalin continue to meet. Blah blah blah blah blah blah Germany. Blah blah blah blah blah, borders. Blah blah blah blah Poland. Blah blah blah blah reparations. Blah blah blah blah United Nations. I’m sorry. I find it hard to heed closely what they discuss, as Mee oh so carefully spells it out. […]