The Manhattan Project .
Einstein
There were a number of top secret programs to build an atomic bomb. If you mean the secret plan of the US, it was called the Manhattan Project.
No, they never were able to complete it. They were trying but never had the capability to build it.
Einstein signed the letter, but Leo Szilard wrote it.
The Manhattan Project was the secret project to design and build the world's first atomic bomb.
The US President Roosevelt learned from physicist Einstein that German physicists were designing an atomic bomb to lob on the US. Einstein and another scientist recommended the US build one and to do it fast before Germany got one built. The Manhattan Project was started after a committee recommended the bomb be built and kept secret. They had planned to use the bomb on Germany but the war ended prior to the completion of the atomic bombs.
Albert Einstein warned the US of the highly likely chance to Germany developing a Atomic Bomb before America. This is proved when the America STOLE german plans of developing an Atomic Bomb and used it as it called the manhatten project. what they only did was make a few tweeks and build it. Germany was withing Few months away from develping the First Atomic Bomb. Actually Germany planned to develope 6 Atomic Bombs, 2 to use on America, 1 onto Britian and 3 onto the USSR. These plans were also mentioned in the FDR Warning Letter.
he did not build the atomic bomb
The Manhattan Project was the code name for the WWII project to build the first Nuclear Weapon, the Atomic Bomb.
the Nazi didn't build the atomic bomb the Americans did....
The original reason that the US began the project to build the atomic bomb was fear. Fear that Nazi Germany would build one first and use it to take over the world.After the war ended the US and USSR built them out of fear of each other.
The fear that Germany was already well on the way to building an atomic bomb and could make first use of them against either England or the USSR at any moment.