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ClassDojo. ClassDojo [3] is an educational technology company. [4] [5] It connects primary school teachers, students and families through communication features, such as a feed for photos and videos from the school day, [6] [7] and messaging that can be translated into more than 35 languages. [8] [9] It also enables teachers to note feedback on ...
Revolute joint. A revolute joint (also called pin joint or hinge joint) is a one- degree-of-freedom kinematic pair used frequently in mechanisms and machines. [1] The joint constrains the motion of two bodies to pure rotation along a common axis. The joint does not allow translation, or sliding linear motion, a constraint not shown in the diagram.
Clevis fastener. A clevis used to attach a bar and chain. A clevis and clevis pin, held in place by a split pin. A clevis fastener is a two-piece fastener system consisting of a clevis and a clevis pin head. The clevis is a U-shaped piece that has holes at the end of the prongs to accept the clevis pin. The clevis pin is similar to a bolt, but ...
A ball joint consists of a bearing stud and socket enclosed in a casing; all these parts are made of steel. The bearing stud is tapered and threaded, and fits into a tapered hole in the steering knuckle. A protective encasing prevents dirt from getting into the joint assembly. Usually, this is a rubber-like boot that allows movement and ...
A pin and hanger assembly is used to connect two plate girders of a bridge. These assemblies are used to provide an expansion joint in the bridge. One beam (the anchor span) is set on a pier with a short section cantilevered out toward the next pier. The other (the suspended span) begins underneath the anchor span, and has its far end resting ...
Classicks is a compilation album by Alice Cooper, released by Epic Records in September, 1995. This release was to mark the end of Cooper's record contract with Epic Records, which had spanned three studio albums. Alice suggested its title. As of 2005, Classicks is available as a CD / DVD set comprising Classicks and "Trashes The World ...
Anterior aspect. The ball-and-socket joint (or spheroid joint) is a type of synovial joint in which the ball-shaped surface of one rounded bone fits into the cup-like depression of another bone. The distal bone is capable of motion around an indefinite number of axes, which have one common center. This enables the joint to move in many directions.
Mechanical joint. A knuckle joint on a locomotive, seen behind the pin joint of the eccentric crank. Ball-point pen included for size. A mechanical joint is a section of a machine which is used to connect one or more mechanical part to another. Mechanical joints may be temporary or permanent; most types are designed to be disassembled.