It takes very little time to build an atomic bomb, once a country has the necessary industrial infrastructure to produce the fissile material.
The atomic bomb was invented in 1933 by Leo Szilard while crossing a street in London and patented the following year. For many reasons he was not able to build it at the time by himself.It took 12 years before the US was able to build the first atomic bombs and use them to end WW2.
four million people would have did if we did not use the atomic bomb
many
The U.S. originally built the atomic bomb to end WW2 because it was the only alternative to invading Japan, which would have cost many, many more lives and been worse for all involved. Now atomic bombs are used for a balance of power - "If you nuke us we'll nuke you back" is enough to stop a few wars.
Too many to list.
16 years
The atomic bomb was invented in 1933 by Leo Szilard while crossing a street in London and patented the following year. For many reasons he was not able to build it at the time by himself.It took 12 years before the US was able to build the first atomic bombs and use them to end WW2.
The Making of the Atomic Bomb has 886 pages.
After so many years the radiation is gone.
None, this was not considered practical in the 1940s.
9.9 meters an atomic bomb can efect a city or a place
An atomic bomb can approximately destroy 100 square miles.
four million people would have did if we did not use the atomic bomb
many
Leo Szilard in 1933 in London. He could not build it at the time for many reasons, but he invented it. It took another 12 years and an investment of $2,000,000,000 before the first ones could be built.
The U.S. originally built the atomic bomb to end WW2 because it was the only alternative to invading Japan, which would have cost many, many more lives and been worse for all involved. Now atomic bombs are used for a balance of power - "If you nuke us we'll nuke you back" is enough to stop a few wars.
It's hard to say exactly. There were many people who helped. There were 18,000 at Los Alamos and probably 50,000 or more in Hanford, WA and 45,000 at Oak Ridge, TN. There were probably 50,000 more in various smaller groups.