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Direct projection of 3-sphere into 3D space and covered with surface grid, showing structure as stack of 3D spheres (2-spheres) In mathematics, a hypersphere or 3-sphere is a 4-dimensional analogue of a sphere, and is the 3-dimensional n-sphere. In 4-dimensional Euclidean space, it is the set of points equidistant from a fixed central point.
In 2012, the head of AP Grading, Trevor Packer, stated that the reason for the low percentages of 5s is that "AP World History is a college-level course, & many sophomores aren't yet writing at that level." 10.44 percent of all seniors who took the exam in 2012 received a 5, while just 6.62 percent of sophomores received a 5.
Hallin's spheres, a media theory formulated by Daniel C. Hallin Social threefolding , a social theory formulated by Rudolf Steiner The three spheres of right , a concept in Hegelian philosophy
A number of reform movements whose leaders and members may never have heard of social threefolding or Rudolf Steiner still unintentionally advance one or another of its three aspects, for example movements seeking to 1) reduce the influence of money in politics by increasing governmental transparency, 2) develop cooperative and socially ...
In neo-Calvinism, sphere sovereignty (Dutch: soevereiniteit in eigen kring), also known as differentiated responsibility, is the concept that each sphere (or sector) of life has its own distinct responsibilities and authority or competence, and stands equal to other spheres of life. Sphere sovereignty involves the idea of an all-encompassing ...
The disk bounded by a great circle is called a great disk: it is the intersection of a ball and a plane passing through its center. In higher dimensions, the great circles on the n-sphere are the intersection of the n-sphere with 2-planes that pass through the origin in the Euclidean space R n + 1.
Women's "proper sphere", according to the ideology, is the realm of domestic life, focused on childcare, housekeeping and religion. [2] [3] In Europe and North America, [4] the idealization of separate spheres emerged during the Industrial Revolution. As an observable phenomenon, however, the existence of separate spheres is much older.
In the classical world, economic life was the prerogative of the household, [2] only matters which could not be dealt with by the household alone entered the public realm of the polis. [3] In the modern world, the public economy permeates the home, providing the main access to the public sphere for the citizen become consumer. [4]