A Holon is differentiated by its nucleus.
The nucleus of a holon is its power source.
At the nucleus of an atom is its proton & neutron.
At the nucleus of a cell is its DNA & mytochondria.
At the nucleus of Man is a heart & a mind.
At the nucleus of the Biosphere is its centre & core.
At the nucleus of our solar system is the Sun.
At the nucleus of our milky way galaxy is a black hole.
Nuclear Science is the study of the nucleus of a holon.
There is much more to for nuclear science to explore than the fission, fusion & acceleration of atoms.