WHAT DOES UNDERWATER NUCLEAR TEST 'UMBRELLA' MEAN?

The 1946 Baker test, just following the chimney had broken through the cloud, and the crack experienced shaped over the drinking water's surface area The Baker nuclear test at Bikini Atoll in July 1946 was a shallow underwater explosion, A part of Operation Crossroads. A twenty kiloton warhead was detonated in the lagoon which was about two hundred