Subject
Physics.
Atoms.
4
Quantum physics.
4
Elementary particles (Physics).
3
Quantum field theory.
3
Hadrons.
2
Heavy ions.
2
Nuclear physics.
2
Artificial intelligence.
1
Computers.
1
Electrical engineering.
1
Materials science.
1
Mathematical logic.
1
Metaphysics.
1
Philosophy and science.
1
Philosophy.
1
System theory.
1