Packing sand in a mold by raising and dropping the sand, pattern, flask on a table. Jolt squeezers, jarring machines, and jolt rammers are machines using this principle.

In warfare, ramming is a technique that was used in the air, sea and tank combat. The term originated from battering ram, which is a siege weapon used to bring down fortifications by hitting it with force, of which the momentum of the ram being sufficient to damage the target. Thus, in warfare ramming refers to hitting a target by running oneself into the target.

A) To move your car into the opponents when he is on the side to most likely put him into the wall slowing him down. B) On the initial startup, with a slight distance advantage, the action of moving your car to the opponents side in order to squeeze in front. C) The art of sending the other car to the scrap yard if only it's real.

A percussive hammer is attached to an open end casing, which is driven through the ground. The spoil within the casing is removed to leave an open casing.