- #36
PeterDonis
Mentor
- 47,490
- 23,766
kimbyd said:I will absolutely claim that mass is the energy in the internal degrees of freedom of a system.
Aside from my reservations about this, I would note that for this particular discussion, we don't need to agree on it, since answering the question under discussion does not require any model of the internal structure of the objects involved; all we need to know is their externally measured quantities.