Preservation, Stop Sign, Sacred Harp
Originally aired: February 3, 2001
Saturday, April 07, 2001
We find out how a painter scooped a scientist in a major discovery about perception, and figure out why a stop sign has eight sides. And Kurt Andersen talks with radio producer David Isay about the art of preservation, with stories about rescuing sacred music and restoring modern sculpture made out of some unusual materials: chocolate and lard.