In this case the primary interest is in the vertical motion of the Earth's surface.

All share one important aspect, that of upward vertical motion within the troposphere.

This system allows the milling head to be moved in small accurate steps up or down through its whole range of vertical motion.

Current California standards, however, require that highways be able to withstand only 3.3 times more vertical motion than the 1950's roads.

The second term is the effect of buoyancy on vertical motion.

The vertical motion is always the same, whether you fire the bullet out of a rifle or drop it by hand.

These vertical motions cause the low to be stretched and vorticity around the system is increased.

It takes strong vertical motions inside the storm to produce lightning.

To start with, consider only the vertical motion of a bomb.

A gradual controlled release was accomplished during the first six inches of vertical motion.