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Harry K. Daghlian, Jr., a scientist working on the Manhattan Project at the Los Alamos Laboratory in New Mexico, became the first person in history to die in a nuclear criticality event. While preparing a bomb for the Operation Crossroads series of nuclear tests, Daghlian accidentally dropped a tungsten-carbide brick onto a plutonium-gallium alloy bomb-core, causing it to go supercritical. Daghlian received an estimated 510 REM of neutron radiation and quickly developed severe radiation poisoning. He died in a coma 25 days after the initial incident.

Submission by Logan Agle. Thank you.

Child’s Dying Wish Fulfilled

diewish

Emory E. Potter, a 45-year-old man from Philadelphia died of a heart attack three hours after his daughter. His daughter Mary Ann, 8, seriously ill from a streptococcus infection, told her mother hours before she died: “I wouldn’t mind dying if only papa would go along with me.”