Changes

An older name for a conservative field is ''irrotational''.  This refers to the fact that such a field lacks "vortices" that go around in circles.

An older name for a conservative field is ''irrotational''.  This refers to the fact that such a field lacks "vortices" that go around in circles.

An older name for a field with a [[divergence]] of zero is ''solenoidal''.  This refers to the fact that, according to [[Maxwell's Equations]], the divergence of the magnetic field is zero, and "solenoid" is a traditional term for an electromagnet.

An older name for a field with a [[divergence]] of zero is ''solenoidal''.  This refers to the fact that, according to [[Maxwell's Equations]], the divergence of the magnetic field is zero, and "[[solenoid]]" is a traditional term for an electromagnet.

Both of these terms seem to have fallen out of use around 1960.<ref>Page, Leigh, ''Introduction to Theoretical Physics'', Van Nostrand, 1952</ref><ref>Constant, F.W., ''Theoretical Physics'', Addison-Wesley, 1958</ref><ref>Schwartz, M., S. Green, W.A.Rutledge, ''Vector Analysis'', Harper, 1960</ref>

Both of these terms seem to have fallen out of use around 1960.<ref>Page, Leigh, ''Introduction to Theoretical Physics'', Van Nostrand, 1952</ref><ref>Constant, F.W., ''Theoretical Physics'', Addison-Wesley, 1958</ref><ref>Schwartz, M., S. Green, W.A.Rutledge, ''Vector Analysis'', Harper, 1960</ref>