Swingman wrote:
From Wimp.com: Artist Giuseppe Penone carefully removes the rings of
growth to reveal the "sapling within". By carving out the inside of a
tree trunk and leaving the knots in place, they eventually emerge as
tiny limbs.

https://picasaweb.google.com/1113554...20167260610594

looks like the way a pine tree rots. The heart and knots are still
solid after the sapwood is gone.

--
G.W. Ross

Snow and adolescence are the only
problems that go away if ignored long
enough.