1.   Hundreds of office buildings and homes developed large cracks in walls and ceilings.

2.   But older buildings develop cracks.

3.   Concrete walks and driveways and asphalt driveways naturally develop cracks.

4.   Either the glass withstands the pressure applied to it, or it develops cracks that lead almost instantly to breakage.

5.   It eventually developed a crack and is now on display at Independence Hall in Philadelphia.

6.   Ivory tusks and antlers, which are not mineralized, develop cracks and fall apart under their own weight, and have therefore been replaced by lightened plastic replicas.

7.   Mortar that is too hard will contract excessively and develop cracks.

8.   Over time, vibrations and bumps cause composite materials to develop microscopic cracks that over time sap the strength.

9.   The ductwork to bring cool air to the house originates in the attic, and S.L. said several of the ducts have developed cracks.

10.   The heat will cause the stucco to dry prematurely, shrink and develop hairline cracks.