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Drafting pantograph in use Pantograph used for scaling a picture. The red shape is traced and enlarged. Pantograph 3d rendering. A pantograph (from Greek παντ- 'all, every' and γραφ- 'to write', from their original use for copying writing) is a mechanical linkage connected in a manner based on parallelograms so that the movement of one pen, in tracing an image, produces identical ...
This configuration is also called a pantograph, [2] [3] however, it is not to be confused with the parallelogram-copying linkage pantograph. The linkage can be a one-degree-of-freedom mechanism if two gears are attached to two links and are meshed together, forming a geared five-bar mechanism.
The correspondence principle is broadly aligned with the conflict theory approach to sociology, which originated with Karl Marx.Marx's said that there is a social class division in capitalist society, between on the one hand a small percentage of the population who are capitalists, owning the means of production, and on the other workers, who sell their labor power to the capitalists.
According to Donato and McCormick (1994) “Sociocultural theory maintains that social interaction and cultural institutions, such as schools, classrooms, etc., have important roles to play in an individual’s cognitive growth and development.” “We believe that this perspective goes beyond current cognitive and social psychological ...
A horizontal pantograph maintains identical planar (X and Y axis) movement, with two degrees of freedom; An angled pantograph descending from the bridge maintains identical vertical (Z axis) movement; A torsion beam maintains identical pen fore-and-aft tilt; A parallel linkage maintains identical pen side-to-side tilt
Linkage mobility Locking pliers exemplify a four-bar, one degree of freedom mechanical linkage. The adjustable base pivot makes this a two degree-of-freedom five-bar linkage. It is common practice to design the linkage system so that the movement of all of the bodies are constrained to lie on parallel planes, to form what is known as a planar ...
The circuit of culture is a theory or framework used in the area of cultural studies. The theory was devised in 1997 by a group of theorists when studying the Walkman cassette player. The theory suggests that in studying a cultural text or artifact you must look at five aspects: its representation, identity , production, consumption and regulation.
Culturally relevant teaching is instruction that takes into account students' cultural differences. Making education culturally relevant is thought to improve academic achievement, [1] but understandings of the construct have developed over time [2] Key characteristics and principles define the term, and research has allowed for the development and sharing of guidelines and associated teaching ...