General Principles of the Pressure Fluids, in Motion or at Rest

Abstract

21. Let MNGH (Fig. 3.1) be a homogeneous fluid without weight, and that either it is of an indefinite extension or enclosed in a reservoir of any size and shape. Place a solid body BCDE anywhere one wishes inside this fluid, taking around that body a fluid portion limited by the surface FOKL and assuming that all the particles of either the fluid or the solid contained by the FOKL surface are impelled by such forces that an equilibrium exists between the fluid and the solid. The pressure that the fluid exerts on any point D of the solid body is impelled.