Originally Posted by
Winemaker
Building a gun type Uranium bomb is simple; the American bomb dropped on Nagasaki wasn't even tested as the numbers were so good for a successful detonation there was no need for a test.
Did you mean to say Hiroshima? The Nagasaki bomb (Fat Man) was a plutonium implosion fission device. It was tested at the Trinity site. The Hiroshima bomb (Little Boy) was the U-235 gun type device.