Agreed, but what I meant was the very small percentage of the material that actually worked - it's mind-blowing to think what the result would have been, had the entire "mass" functioned as designed.
OK, today, we are "used" to what the effects of nuclear weapons will produce, depending on yield, but back then, with the first two weapons doing so much damage, let alone the after effects, the possible results are still staggering.
As I said - frightening !!