"nuclear facilities" ushistory.org
There were some challenges to creating the bomb. In order to detonate an atomic weapon, they needed a critical mass of uranium in order to make the bomb. The more uranium, the greater the odds that such an explosion will occur. After telling about the Manhattan Project in public, there were some conflicts about testing the nuclear power and some fears over the possibilities over the nuclear bomb exploding on top of cities in America.
President Franklin D. Roosevelt
On May 12, 1942, President Roosevelt signed an order creating a secret project to develop the nuclear weapon. The program that developed the atomic bomb for the United States during World War II was the largest secret project ever undertaken by the U.S. government. By the permission of the president, the scientists were allowed to make the atomic bomb in prohibited areas.
"Franklin D. Roosevelt" us history.com
The scientists let people know some information about the Manhattan project, perceiving from the standpoint of security, the release of some selected information would make it easier to maintain the secrecy of the highly classified aspects of the project. letting people know about the Manhattan Project, it had the preparation of a series of public releases and preparation of an administrative and scientific history of the project.
"Public announces" osti.gov
the atomic bomb in Germany
Early in 1939, the world's scientific community discovered that German physicists had learned the secrets of splitting a uranium atom. Fears soon spread over the possibility of Nazi scientists utilizing that energy to produce a bomb capable of unspeakable destruction.
The atomic bomb that Germany had created is shaped differently than the one that America made because they got influenced by the tiny bombs that were dropped from planes. The bomb Germany had made is a circle and the one America made has a tale on the back to make the bomb explode from the tip.
"the Manhattan Project" 1939. ushistory.com