The Aqualoop is one of the few water slides to feature an almost vertical loop-the-loop. Riders start by standing on a trapdoor. The drop that follows allows them to gain enough speed – up to 60 ...

This duplex aluminum linear slide rule is coated in yellow ("eye saver") plastic and is held together with stamped aluminum contoured posts. The nylon cursor has a convex lens. The front of the base ...

Slide guides, also known as linear guides, are precise, linear bearings that use rolling elements, either balls or rollers, moving along two raceways to reduce friction and stick-slip to provide ...