The US did know about radiation when they dropped the bombs on Japan it was a risk they were willing to take to save ournation from going into war with them. hope this helped you.
We shall never know because they were dropped and we know the impact of the bombs.
there were two million atomic bombs but i would not know im just a stupid American and i like pie!
i dont know sorry!
The nuclear was a secret before the bombs hit the targets.
During the blitz the first lot of bombs were dropped in London in 1940... They had to turn all the lights off in the city so the Nazis did not know where to bomb.
Easy. Basically there were two types of nuclear bombs (Atomic bombs). One is fusion and the other is fission. Fusion bombs are Hydrogen bombs that were only invented and tested on 1950s. When America drop the bombs on Japan , it was fission type. Both Uranium and Plutonium in Hiroshima and Nagasaki respectively.
US, the US was the only one that had them at the time.I tend to believe that the 2 dropped were the onlyassembled fission bombs in US stockpile when they were dropped, but parts for more were ready to assemble. Probably bombing could have resumed at a rate of almost 2 per week by the end of august if japan had not surrendered.I know for certain that the entire US stockpile in 1946 at the start of operation Crossroads was exactly 6 fission bombs. Crossroads exploded 2 of those, reducing the US stockpile to only 4 fission bombs.
Give me the answer right know
You stupid you don't know, man the Koreans did why do you think we lost the war.
Japan knew that Hiroshima had been bombed. They were trying to determine what type of weapon it was. Three days later, Nagasaki took a hit. It was decided that determining what type of weapon it was...was no longer important; whatever type of weapon it was, if any more were dropped (Japan didn't know that there were no more atomic bombs...at least for a few months) Japan would not exist anymore. The weapon was that powerful! So they had no choice (so they thought) and surrendered.
The nuclear bombs used in Japan in the end World Two, were dropped with the warning written in pamphlets dropped days before. The symbol for nuclear danger is a yellow and black which everybody seems to know. It is even in hospitals. Nuclear power plants providing electricity are full of them. One of the harmful species from nuclear fallout is the radioactive isotope of strontium, 9038Sr. so nuclear or radiation are harmful and the warning sing has to be always placed in those places.
Answer Once wasn't enough. They Japanese did not surrender. So, the US dropped another bomb. Interestingly, the US prepared at least two atomic bombs. I don't know if they constructed any more or not. The two bombs were of different type of design so one was a large round sphere---called Fat Boy.