DETAILED NOTES ON UNDERWATER NUCLEAR TEST 'UMBRELLA'

With test moratoriums on the horizon, American weapons labs rushed out a lot of new styles. A hard deadline for testing was set at midnight (0000 hrs), 31 October 1958, as negotiations were set to get started on that day, and also the routine exhibits it, with 29 tests executed in October, four of these on the final working day. A person other test