He put his back against the wall and allowed gravity to take him down on to his haunches.

Lowering the ramp was accomplished by releasing the air and allowing gravity to bring the ramp down.

Sitting up allows gravity to help food and stomach juices from the esophagus drain back into your stomach.

Then the planes tip their noses upward, allowing gravity to pull the cargo out the back.

"What happens is, you use explosive materials in critical structural connections to allow gravity to bring it down."

The canals used positioning in order to allow gravity to move the water from its source to the crops.

The towns slopy topography allows nature and gravity to take care of most of the town's storm water drainage.

All you have to do is pour water through the top and allow gravity to carry it through the filter.

This allows gravity to be considered as an affect on space rather than on individual particles.

"The weight of the trunk allows gravity to put the body in balance."