A curvilinear tetrahedral enhanced building block may be formed. The block may include sigmoid or reverse sigmoid curve edges, and may include curved vertices. The shape various planes or vertices of the block may be selected or adjusted to exert a force against a surrounding viscous medium. The block may include a conductive element configured to generate an electrostatic field, and may include a magnetic element configured to generate a magnetic field. The block may be configured to conduct electricity to a surrounding dielectric fluid, and the block's generation of a magnetic field may induce magnetohydrodynamic motion within the dielectric fluid.