11.   Broken steel wires indicated that something punctured the tire and caused tiny cracks that grew until the tread broke free, he testified.

12.   Damage to composite materials often begins as tiny cracks.

13.   Ribbons of green sprout from tiny cracks in concrete and marble.

14.   The tiny cracks also can show up on X-rays, but more sophisticated imaging may be needed to make a diagnosis, the journal article said.

15.   To heal tiny cracks automatically, the Illinois researchers sprinkled capsules about the thickness of a human hair throughout an experimental fiberglass-like compound.