This story is dedicated to my father-in-law, Robert F. Sawyer, who at 78 years of age can still out run, out hike, out ski, out work and out think just about everybody else out there.

Members of religious communities sometimes take vows to remain celibate.

The full power and utility of dimensional analysis is often underestimated and underutilized by engineers.

Polymorphic redefinition in C++ is achieved by the use of virtual functions.