Jim,

You are showing me how rusty I am. 1 degree of latitude is 60 miles at the equator. But one degree of longitude only about 25 at my latitude.

The sun moves 360 degrees in 24 hours or 15 degrees an hour. That's one degree every 4 minutes.

But you bring back memories.

It's time to take it out of the theoretical and video an example of how the shadow lines up. That might take until the weekend.