1.   As heavy debris was cleared, more bodies were found late Thursday.

2.   If the boxes are stuck in debris too heavy for the robot to lift, Deep Drone can place rigging on the wreckage.

3.   When the trade center buildings were hit and later collapsed, heavy debris that was hidden by the smoke clouds went hurtling all over Lower Manhattan.

4.   About half an hour after the quake, a man found the boy and pulled the heavy concrete debris and stones off him.

5.   At least four cranes were brought to the scene, including one that was driven into the stadium to help lift heavy debris.

6.   At least four cranes were brought to the scene to help lift heavy debris.

7.   At least four cranes were brought to the scene, including one that was driven inside the hall to help lift heavy debris.

8.   The cranes, needed to lift heavy debris from the day care center area, had been idle much of the day because of lightning.

9.   They formed a human chain to try to move the heavy debris that was in the way.