# What's the difference between [physics] and [mathematical-physics]?

What's the difference between the [physics] and [mathematical-physics] tags? Are they similar enough that we shouldn't have both?

• And math.stackexchange.com/questions/1727/… doesn't need physics/mathematical-physics at all, does it? Aug 7 '10 at 19:07
• center of mass is a physics concept, I guess. Aug 7 '10 at 20:17

Retaging all current mathematical-physics into physics should be OK, I think.