Tom Mchugh wrote: > > Fred, > > Light is beginning to filter into the murky mists of my > mind & I am beginning to see the light. > > Thanks for putting me back on the track. > > Tom McHugh > > [EMAIL PROTECTED] > > R. R. 1, Box 896 > Fort Fairfield, ME 04742 > USA > > 46° 45' 13" > 67° 48' 42" >
Tom, Have a look at http://www.iaehv.nl/users/ferdv/projdial.htm On those pages the principle of the analemmatic sundial ( and other projection dials ) is described. Fer de Vries.
