1.   The play portrays a good Marriage torn apart by external forces.

2.   Historians looking at the early tenth century find it difficult to identify the Vikings any longer as an external force.

3.   This problem can be overcome by subjecting them to an external force, strong enough to alter their spatial distribution by a significant amount in a short time.

4.   And, yes, blaming some blanket external force for such evil is a dodge.

5.   As external forces for keeping marriages intact continue to weaken, the forces holding them together from within grow increasingly important.

6.   But once again, poor schnooky baseball was saved by external forces.

7.   Compile a list of the external forces that seem most likely to have a significant impact.

8.   Columbine and Fort Worth distract us by placing blame on an external force.

9.   Engineers use it to analyze the external forces that act on structural surfaces like floors or the skin of airplane wings.

10.   External forces like bosses, spouses, stupid business decisions.