Private foundation is an institution with a very special status. They are tax exempt private organizations yet they are still allowed to invest into for profit companies. Foundations can hold corporate stocks and bonds and generate revenue this way....
Beautiful vortices in the wake of an F-15 pulling Gs, when the parallel vortices break down due to Crow instability, they break off into rings (toroidal vortices).
After the right and left brain are separated, each hemisphere will have its own separate perception, concepts, and impulses to act. Having two "brains" in one body can create some interesting dilemmas....