PHOENIX, ARIZONA.- The Phoenix Art Museum presents ’Clearly Thinking: The Sculpture of Peter Ivy and Michael Scheiner,’ on view through August 11, 2002. Artists Michael Scheiner and Peter Ivy use the rich visual and symbolic potential of glass to create enigmatic and lyrical objects.  Exceptional glassblowers, Scheiner and Ivy combine it with other media that run the gamut from sheet lead and soap bubbles to insect wings.  Scheiner pays particular attention to the similarities between glass and the vulnerabilities of the human and non-human bodies. For Phoenix Art Museum, he will construct a sculpture of wet clay, one ton in weight, which is supported solely by thin ’fins’ of sheet glass.  Ivy has described his objects as ’useless machines.’  They are fragile, complicated contraptions that remind us of the wonder of such mundane phenomena as dust floating on the surface of water, heat rising from a light bulb, and the pattern of cracks in a glass vase.