konceptjones
The one between three and three.
Spoken like true American propaganda.
The test right before the bombing of hiroshima produced a mushroom cloud over 2000 feet, created a mushroom cloud, and lit up the skies for tens of miles. The impact was in the tens of kilotons, meaning it equaled to hundreds of thousands of tnt explosions.
How could they have seen that and not known the impact of what would happen if you dropped that mfer in a densely populated area?
The US needed some live testing and had to do it then cause the war was gonna end in a few months. This is pretty much expected facts. Almost all ranking military personal from that time came out and admitted that dropping the bombs were unnecessary.
It was still only ONE test. Just to double-check I took a look before writing this:
Trinity was 21 kilotons.
Little Man was estimated to be around 15 kilotons (12-18kt).
Fat Boy was estimated to be around 20 kilotons (18-23kt)
These were estimates and the margin of error was somewhere around 20-25%. Trinity was detonated in the middle of the desert with only a farmhouse that they were working from nearby, which was leveled.
They didn't have to know what was going to happen, all they knew was that it was either that, or try to fight a ground war, dubbed Operation Downfall, which by many estimates could have taken up to a year and cost over a million American lives. Remember, it took us 3 months just to take Okinawa, and they fought very strategically on the ground which is why it took so long to take that ONE island. To take the main island with a similar strategy employed by the Japanese could have taken significantly longer and would have cost far more lives because in Okinawa they fought damned near to the last standing soldier; imagine trying to take the main island to the imperial palace against an enemy that simply will not stop?
With that knowledge, Truman executed the only option that would bring the war to its end as quickly as possible. The immediate cost in lives was about 120K, the final total being around 220-230K within 4 months. This versus what likely would have been millions of Japanese civilians dead from conventional bombings and artillery fire.