Eric Walker added Demon core incident to Demon core - Wikipedia

Eric Walker added The Blue Flash: How a careless slip led to a fatal accident in the Manhattan Project - BBC Future to Demon core incident

Eric Walker updated the time prefix for Demon core incident to be "1946-05"

Eric Walker updated the time prefix for Demon core incident to be "1946"

Eric Walker updated the time prefix for Demon core incident to be "2023"

Eric Walker added Demon core incident to Nuclear weapons