It is important to know the mass, speed, and distance traveled of the moving parts.

They traveled south, past the spring pool and out of the forest.

He continued to travel and write of his experiences.

They traveled regularly in and out of Germany as the planning took shape.

It traveled just shy of 50 miles, across 4 counties.

I would definitely want to travel and/or live an extended period of time in another country.

Time will travel too fast of itself to require me to aid it by distance.

They both traveled in and out of different foster homes.

You have to travel at least 100 kilometers south of the border to experience more typical Mexican life.

To survive, Dura must travel to a far off city, and eventually outside of the star itself.