Sorry, I should have included the URL to the Hardy pyramid photo that
Chuck was referring to, thinking the Dendera projectors should be viewed
as 3 dimensional instead of two, which would make the Dendera 'snake'
either circularly polarized or possibly a HELIX as in the photo below;
http://www.keelynet.com/unclass/hardy1.htm
-- Jerry Wayne Decker / jdecker@keelynet.com http://keelynet.com / "From an Art to a Science" Voice : (214) 324-8741 / FAX : (214) 324-3501 KeelyNet - PO BOX 870716 - Mesquite - Republic of Texas - 75187