"You get a moment in time and space when the forces are right for a collision."

Well, this one was heading for a collision with the real world.

Already our freedom of speech is headed for a collision with every other law.

For other collisions the sums will have to be done all over again.

At 9.06am I said the government seemed to be heading for a collision with parliament.

The amount of waiting and the potential for a collision increases significantly.

So those two elements coming together can make for a pretty big collision.

From the beginning, he has tried "to build the potential for unexpected collisions into the physical materials on stage."

There was no need for a collision, had the other driver kept to the side of the avenue on which he belonged.

All of them were sitting forward in their seats, as if bracing themselves for a collision.