This scientist names a construct whose analytic solutions include the equation “p equals del dot phi,” where phi is the harmonic vector potential. That technique named for this scientist assumes a body force of zero and is named after Papkovich and Neuber. Basset, Froude, Krylov, and this man’s eponymous forces mainly appear in the BBO equation, which concerns small particles in unsteady flow. Carl Wilhelm (*) Oseen developed a set of equations to resolve a paradox named (-5[1])for this scientist, (-5[2])which states that a fluid can not exhibit creeping flow in two dimensions. A coefficient of six pi is multiplied (-5[1])by the dynamic (10[1])viscosity, (10[1])radius, and flow velocity to calculate drag forces named after this scientist. For 10 points, name this Irish scientist who co-wrote a set of fluid mechanics equations (-5[1])with Claude-Louis Navier. (10[1])■END■ (10[5])