Explosiosives.
Germany has not made a nuclear bomb.
To make a nuclear bomb, you need the fissionable material such as a Plutonium239 isotope, an explosive to start the nuclear chain reaction, a detonator, and a pusher.
Albert Einstein did not make the nuclear bomb. Oppenheimer did.
To make deadly Nuclear bomb
A nuclear bomb is made of fissile material, such as uranium-235 or plutonium-239. These materials undergo a nuclear chain reaction that results in a powerful explosion. Additional components such as a triggering mechanism and explosive lenses are also included in the design of a nuclear bomb.
YES
Plutonium + Weapons = Nuclear Bomb
No, USA did.
Go and find out your self.
If you are a smart guy, you can make a nuclear bomb, or a nuclear reactor...
plutonium + weapon
United States of America