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Stirrup sample. Stirrups form the outer part of a rebar cage. The function of stirrups (often referred to as 'reinforcing steel links' and 'shear links') is threefold: to give the main reinforcement bars structure, to maintain a correct level of concrete cover, and to maintain an equal transferance of force throughout the supporting elements. [30]
A stirrup is a light frame or ring that holds the foot of a rider, [1] attached to the saddle by a strap, often called a stirrup leather. Stirrups are usually paired and are used to aid in mounting and as a support while using a riding animal (usually a horse or other equine , such as a mule ). [ 2 ]
The movement of a body, or link, is studied using geometry so the link is considered to be rigid. [1] The connections between links are modeled as providing ideal movement, pure rotation or sliding for example, and are called joints. A linkage modeled as a network of rigid links and ideal joints is called a kinematic chain.
Modern historical reenactors have shown that neither the stirrup nor the saddle are strictly necessary for the effective use of the couched lance, [7] refuting a previously widely held belief. Free movement of the rider on horseback were highly esteemed for light cavalry to shoot and fight in all directions, and contemporaries regarded stirrups ...
Spur styles differ between disciplines. Spurs for western riding tend to be heavier, often decorated, and have rowels that rotate. The neck of western spurs is usually longer and the rowel wide in diameter, to accommodate the leg position of the western-style rider, where the stirrup is adjusted long, and the heavy leather used for the saddle ...
In general, each joint of a linkage connects two links, and a binary link supports two joints. If we consider a hexagon constructed from six binary links with six of the seven joints forming its vertices, then the seventh joint can be added to connect two sides of the hexagon to form a six-bar linkage with two ternary links connected by one joint.
A popular Washington sushi restaurant has closed two of its locations after a viral TikTok video posted by influencer Keith Lee sparked food safety concerns.
The Great Stirrup Controversy is the academic debate about the Stirrup Thesis, the theory that feudalism in Europe developed largely as a result of the introduction of the stirrup to cavalry [1] [2] in the 8th century AD. It relates to the hypothesis suggested by Lynn Townsend White Jr. in his 1962 book, Medieval Technology and Social Change. [3]