Hinge Hinge A hinge is a mechanical bearing that connects two solid objects, typically allowing only a limited angle of rotation between them. Two objects connected by an ideal hinge rotate relative to each other about a fixed axis of rotation: all other translations or rotations being prevented, and thus a hinge has one degree of freedom. Hinges may be made of flexible material or of moving components. In biology, many joints function as hinges like the elbow joint. There are many types of door hinges. The main types include: Other types include: Since at least medieval times there have been
Pivot turn (skiing) in place while moving the tails. Pivot turn (skiing) The pivot turn or pivot is a technique of turning in place in skiing. The two types are the tail pivot and tip pivot. In the tail pivot, e.g., to the left, little turning steps are done to the left while keeping the tails of the skis together in place. Repeat the following two steps until the required amount of turn is reached: step the front of the left ski to the left with its tail in place, bring the right ski to the left ski. The tip pivot is similar,