[Moo] Asking the obvious

[Dave Montuori]

Scripsit Erich:
> The stick trick only takes a couple of minutes. Put a stick in the
> ground. Put a pebble at the "top" of the stick's shadow. Wait until
> the stick's shadow has moved a visible distance. Put down another
> pebble. The second pebble will be due east of the first.

Not precisely due east: that would imply a straight track across the sky 
at all times, which the sun doesn't have (at least not at these 
latitudes). But over the course of just 5 minutes it's damn close. 
(Certainly close enough for the intended purpose.)

Evan