#DemonCore anniversary: its first kill
🧵 https://bsky.app/profile/atomicanalyst.bsky.social/post/3mtm4addcuk2z
> Tonight in 1945 at Los Alamos, 24-year-old graduate student and Manhattan Project physicist Harry K. Daghlian, Jr., was conducting a risky criticality experiment by himself in a shack when he accidentally dropped a 4.4-kg (9.7-pound) tungsten carbide brick on a 6.2-kg (13.7-pound) plutonium core.
Nonya Bidniss
npub1wr…6ssxr
2026-08-21 15:57:23 UTC
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wss://relay.momostr.pinkPublished at
2026-08-21 15:57:23 UTCEvent JSON
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"content": "#DemonCore anniversary: its first kill \n🧵 https://bsky.app/profile/atomicanalyst.bsky.social/post/3mtm4addcuk2z\n\n\u003e Tonight in 1945 at Los Alamos, 24-year-old graduate student and Manhattan Project physicist Harry K. Daghlian, Jr., was conducting a risky criticality experiment by himself in a shack when he accidentally dropped a 4.4-kg (9.7-pound) tungsten carbide brick on a 6.2-kg (13.7-pound) plutonium core.",
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