By 1799 the number of Martha Washington's dower slaves had grown to 153; George Washington owned 124 people, and at least a dozen Washington-owned slaves intermarried.
Hund's rule of maximum multiplicity is a rule based on observation of atomic spectra, which is used to predict the ground state of an atom or molecule with one or more open electronic shells.
The Shewart Cycle (PDCA) is most often a circle with no beginning or end, meaning that continuous improvement is a process that never stops. A simple description of the PDCA cycle is: Plan: Identify an opportunity and create a plan for improvement.