Hi all, After rereading my last post, I did not wish to insult anyone by implying that C=2(pi)r was complex for them. But that formula and Tan HA = Sin L x Tan t, are complex if we wish to draw school age children into dialing. So - how do we explain that math to school children? Must we do so? What can be done in dialling that is understandable with grade school math? I liked Mac Oglesby's solar plane dials because he put a lot of effort into reducing the math - not an easy task. Are constructions one way to go? I think so.
Warren Thom
