What is the difference between atomic physics and nuclear physics?
Kelley D. Burroughs
Atomic physics is mainly concerned with the electrons orbiting the nucleus of an atom. In this regime the Coulomb interaction dominates and phenomena can be explained by quantum electrodynamics (QED).
Nuclear Physics on the other hand, concerns itself with the particles of the nucleus called nucleons (protons & neutrons). In the nucleus there is Coulomb repulsion between the protons but there is also the strong force which keeps the nucleus together. This interaction is not completely understood but there are many models to address it. In the nucleus the leading theory is quantum chromodynamics (QCD) which attempts to explain phenomena in terms of quarks which are the particles that are proposed to make up the nucleons.
Pete Karpius, Physics Grad Student, UNH, Durham
'You cannot hope to build a better world without improving the individuals. To that end each of us must work for his own improvement, and at the same time share a general responsibility for all humanity, our particular duty being to aid those to whom we think we can be most useful.'