The Laplace equation can be generally solved for dimensions up to eight. The solution functions have rotational characteristics, and there are transitory as well as stationary solutions. The Laplace equation provides for time-dependent dynamics and for nonlinear interactions, as well as for an individual movement of parts of a system, under the condition that the individually moving parts conserve the total momentum of the system. A fundamental indeterminism about the outcome of interactions between such moving parts is also present.