Unsure of your term "inputs". To construct a nuclear weapon, it requires a source of scarce fissionable materials, such as Uranium 235, or Plutonium. It requires the ability to perform precision machining of these VERY difficult to work with materials. It requires the use of precisely shaped high explosives of assorted types, the use of extremely high precision electronic timing equipment used to detonate the high explosive trigger, and a source of metals for a neutron donor ( such as beryllium) and the ability to machine that. Along the way, it is good not to die from handling and machining the metals. You also need a way to deliver a very heavy package- the original atomic bombs weighed 9000 to 10,000 lbs.
The scientist given the most credit for the building of the atomic bomb is Robert Oppenheimer.
Robert Oppenheimer
The Manhattan project
No. By the time the US dropped the atomic bomb on Japan, Germany had already surrendered. While Germany did have a nuclear weapons program during the war, it did not actually get to the point that they were capable of building a working bomb.
Oppenheimer......................
The Manhattan Project
Building the first atomic bomb.
The building of the atomic bomb was known as the Manhattan Project. It was a research and development project during World War II that produced the first nuclear weapons.
Robert Oppenheimer
Their project to build an atomic bomb started before the US, but because of several mistakes in experiments and calculations the priority was lowered and the project redirected to only building power reactors after the war.
If you consider the US atomic bomb is a Christian bomb, the French atomic bomb is also Christian bomb and so on, then you can name the Pakistani atomic bomb an Islamic bomb.
how was the atomic bomb repaired