Wind Cathedral Project - cathedral1 - 15 july 2011 © Sean McGinnis     Wind Cathedral Project - cathedral2 - 15 july 2011 © Sean McGinnis     Wind Cathedral Project - cathedral3 - 15 july 2011 © Sean McGinnis     Wind Cathedral Project - cathedral4 - 15 july 2011 © Sean McGinnis       Wind Cathedral Project - cathedral5 - 15 july 2011 © Sean McGinnis     Wind Cathedral Project - First Sketch - 2011 © Sean McGINNIS     Sean thinking about the project in front of Notre Dame - 2011© Sean McGinnis     Catenary Model of the Sagrada de Familia by Gaudi - 2011 © Sean McGinnis     Gaudi used gravity to define the weight distribution and the angles of the supports - 2011 © Sean McGinnis