Editing No-go theorem (section)

=== Classical electrodynamics ===
* [[Antidynamo theorem]]s are a general category of theorems that restrict the type of [[magnetic fields]] that can be produced by [[dynamo theory|dynamo]] action.
* [[Earnshaw's theorem]] states that a collection of [[point charge]]s cannot be maintained in a stable stationary [[mechanical equilibrium|equilibrium]] configuration solely by the [[electrostatic]] interaction of the charges.