Add Yahoo as a preferred source to see more of our stories on Google. Part of Operation Upshot-Knothole, was a 15-kiloton test fired from a 280-mm cannon on May 25, 1953 at the Nevada Proving Grounds.

Tom Lambert holds his Atomic Veteran medal he received for taking part in Operation Grable. Ever since I was a kid, my dad would tell me how he watched two atomic bombs explode when he was in the ...