Calendarby GlyphHistory · Anniversaries
75th anniversary: American physicist Harry Daghlian accidentally dropped a tungsten carbide brick...
Fri, August 21, 2020
6 yr ago
In 1945, American physicist Harry Daghlian accidentally dropped a tungsten carbide brick onto a plutonium bomb core, exposing himself to neutron radiation and later becoming the first Manhattan Project fatality due to a criticality accident.
Source, method and history
- Source
- Wikipedia
- How we know
- Wikipedia "On this day" selected anniversary, 75 years (1945 to 2020).
- Recurs
- annual
- Feed
- Subscribe to Anniversaries
- Changes
- 2026-09-25: added to 2020-08-21