"[T]here's Dave Harrison's bead wall. I teach... classes at the University of New Mexico and Dave... one of my students... said. "...I've got this idea of building a wall out of two panes of glass... and you can blow Styrofoam beads between the panes at night to insulate the wall." ...Here's a problem ...nobody has thought of a way to solve. I've tried... and... Harold Hay has... and... a lot of others... Dave Harrison has the answer! ...[A] ...low-tech ...answer ...simple ...easy to understand, that a heating and ventilating man in any town can fix... [W]e’ve made a deal with Dave so that he’ll get a big part of any royalties we realize..."