Hi All, The web site below is a construction of a horizontal dial. It is based on geometry from Rene Rohr's book. A viewer can change the latitude or difference in longitude by dragging the mouse on one of the red circles. Warning - it seems to access a lot of Java code to run.
<http://people.ce.mediaone.net/wthom/H_2.HTM> Have fun, Warren Thom (41.649N 88.096W)
