[qstdzuca] Slow clock

Create a clock with 3 hands, circling once a week, month, and year.  Or perhaps 6 hands combining with a regular clock.

Observe that we measure time by many circular, periodic, constructs.

The hands need to be smart, traveling at different velocities, as the periods vary in length: days in a calendar month, leap year, leap second.  Mechanical would be crazy.  Computer display would be easiest.