Richards said that China landing on the moon signals a new era of human expansion into space. I hope the U.S. and others return to the moon as a frontier of peaceful international exploration and economic development, he said.
Slip Rolls, Plate Rolls & Combination Machines. Slip rolls or plate rolls are designed to form sheet metal into curved panels or cylinders. These sheet metal rollers are available as manually operated or powered, and many include wire grooves for bending solid rod.
A roll is the most basic and fundamental skill in gymnastics. There are many variations in the skill. Rolls are similar to flips in the fact that they are a complete rotation of the body. However, the rotation of the roll is usually executed on the ground while a flip is executed in mid air with hips passing over the head and without any hands touching the floor. Rolls also help recover from a fall safely.