And the low gravity must help - some of those domes are quite large.

Usually sewers are built in a slope so that gravity helps move waste along.

The pain also may improve with walking because gravity helps blood to reach the foot.

They hit the downhill slope, so gravity helped carry him along.

It tilted down to let gravity help her.

Optimistically, he had expected that the lesser gravity of this world would help.

Once beyond the top, gravity helps to pull the cars down around the bend.

We had to use our muscles to keep us together; gravity wouldn't help.

In yesterday's flooding, gravity helped clear water from midtown stations.

Now gravity was helping her; if he let go, she would fall on the floor.