German immigrant Oppenheimer studied physics for three years and graduated from Harvard University. Then, he earned his doctorate from Cambridge University and Göttingen University at the age of 23. After that when he was a researcher at the University of California, he that neutrons theoretically becomes black holes. In 1942 after participating in the Manhattan project, he successfully developed a nuclear bomb. After the nuclear bomb fell in japan, he opposed the development of a hydrogen bomb. Because the opposition to the hydrogen bomb gave a rise to politics, and Oppenheimer’s ex-lovers were members of the communist party,So Oppenheimer was thought to be soviet spy and removed from the office. Oppenheimer died in 1967 after being diagnosed with head and neck cancer in 1965. Oppenheimer was found not guilty, and his nuclear commission’s security access was revoked on December 15, 2020