LYNN
BIG explosion of AN has happened a number of other times
Friday, August 07, 2020, 08:56

Beside Texas City Wikipedia has 24 listed many in the US
The big bubble is the blast wave compressing the air in front of it-- the moisture becoming visible for a few moments---- despite Hollywood blast waves can be basically solid--- so they do not just roll you around
As to the nuc Idea... many explosions can make a mushroom cloud plus no flash--no radiation--etc


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