Initially, they were the waste product of wooden bowls turned in an ancient technique by Robin Wood of the United Kingdom, an expert pole-lathe turner and author. Known for his historical and functional objects made on a foot-powered lathe, Wood keeps the tradition of pole turning alive. The leg-powered process Wood uses results in thousands of solid, round chunks - Cores - that get broken out of the center of the bowl at the last moment. Wood donated 100 Cores, which ranged in size from 2 x 2 to 3 x 4 to The Center for Art in Wood in Philadelphia. The Center sent Cores to two-score artists who agreed to the challenge of reworking them into new pieces of art. These works, shown here in more than 240 color photos, formed the exhibition - Robin Wood's CORES Recycled - by The Center for Art in Wood.