『Spies, Plutonium & the Weight of What They Built』のカバーアート

Spies, Plutonium & the Weight of What They Built

Spies, Plutonium & the Weight of What They Built

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(00:00:00) Spies, Plutonium & the Weight of What They Built
(00:00:41) Einstein's Letter and the Project That Followed
(00:01:57) Building the Secret Infrastructure
(00:03:34) Fermi and the First Chain Reaction
(00:04:49) The Plutonium Problem
(00:06:27) The Spies Within
(00:07:44) Trinity
(00:09:17) Hiroshima and Nagasaki
(00:10:41) The Moral Aftermath

By 1944, the Manhattan Project had proven nuclear fission was possible — but building an actual weapon was a different problem entirely. The plutonium path, which promised the fastest route to a workable bomb, had hit a wall. Reactor-bred plutonium was too unstable for a gun-type design. The solution — implosion — was one of the most complex engineering challenges ever attempted: precisely shaped explosive lenses, detonating in perfect simultaneity, compressing a plutonium core from every direction at once.

This episode traces how that breakthrough was achieved, who achieved it, and what it cost. J. Robert Oppenheimer held together a laboratory of competing geniuses under total secrecy in the mountains of New Mexico. Enrico Fermi had already proven the chain reaction was real. Now the question was whether the implosion design could be made to work before Germany or Japan reached the same point.

But Los Alamos was not as secret as it appeared. Klaus Fuchs, the brilliant German-born physicist, was passing detailed bomb designs to Soviet intelligence throughout the project. Theodore Hall, the youngest physicist at Los Alamos, was doing the same. David Greenglass fed information through Julius Rosenberg's network. The bomb the United States built was, in part, the bomb the Soviet Union inherited.

And then there were the men themselves — Oppenheimer, Fermi, Szilard, Teller — who understood exactly what they had made. This episode explores the moral weight that descended on the people who built the atomic bomb, and how it shaped the cold war world that followed.

This episode includes AI-generated content.
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