#84 – The Decision Part 2

#84 – The Decision Part 2

* By June 18 events had progressed to the point where Admiral Leahy was able to note privately in his personal diary:* It is my opinion that at the present time a surrender of Japan can be arranged with terms that can be accepted by Japan and that will make fully...
#83 – The Decision Part 1

#83 – The Decision Part 1

* On 15 August 1945, about a week after the bombing of Nagasaki, Truman tasked the U.S. Strategic Bombing Survey to conduct a study on the effectiveness of the aerial attacks on Japan, both conventional and atomic.* Did they have an effect on the Japanese surrender?*...
#82 – Alex Wellerstein

#82 – Alex Wellerstein

Our guest today is Alex Wellerstein, a self-described “historian of science, secrecy, and nuclear weapons”. He’s a Professor of Science and Technology Studies at the Stevens Institute of Technology. He blogs here and is on Twitter here. He is also...
#81 – GROUND ZERO

#81 – GROUND ZERO

Kistiakowsky and his team armed the device shortly after 5am and retreated to the control bunker. Their final task was to switch on a string of lights on the ground that would serve as an ‘aiming point’. The air force wanted to know what the effect of the blast would...
#80 – The Plug & The Hole

#80 – The Plug & The Hole

Back to Alamogordo. The army leased a ranch in the middle of the Jornada del Muerto site and converted it into a military police station and field laboratory. They thoroughly vacuumed it to make a makeshift clean room and sealed its windows with black electrical tape....
#78 – Alamogordo

#78 – Alamogordo

On 6 June, Stimson again briefed Truman on S-1. * The briefing summarized the consensus of the Interim Committee, set up as an advisory group on atomic research.* It’s job was the advise on the proper use of atomic weapons in wartime and to develop a position for the...
#77 – Bombing Japan

#77 – Bombing Japan

* Which brings us to April 1945.* Only weeks before Germany surrendered on May 7, FDR dies.* And Truman takes over as POTUS.* He knew nothing of the Manhattan Project or the atomic bomb.* He was briefed on it immediately by Sec of War Stimson.* By the time Truman took...
#76 – Operation Alsos

#76 – Operation Alsos

Of course, while the bomb was being designed, they had to figure out how they were going to deliver it. And WHO was going to deliver it. Way back in March 1944, the US Army Air Force, with William Sterling “Deak” Parsons and his team at Los Alamos, developed two...
#75 – The Beer Can Experiment

#75 – The Beer Can Experiment

* President Roosevelt authorized the Manhattan Project to go full steam 26 days after Fermi’s success, on 28 December 1942* The U.S. would end up spending $2 billion on it. (about $22 billion in 2018 dollars)* Do you know why it cost so much?* 130,000 people* When I...