Sphere two poles is called the axis of rotation. Circles on the sphere that are parallel to the equator are lines of latitude. This terminology is also used for such approximately spheroidal astronomical bodies as the planet Earth (see geoid). Any plane that includes the center of a sphere divides it into two equal hemispheres. Any two intersecting planes that include the center of a sphere subdivide the sphere into four lunes or biangles, the vertices of which all coincide with the antipodal points lying on the line of intersection of the planes. The antipodal quotient of the sphere is the
Public sphere pedagogy sphere pedagogy might alienate students and community members unaccustomed to this type of dialectic experience. In addition to its exclusionary nature, attention has also been called to Habermas' privileging of a hegemonic public sphere. Michael Warner argues that the bourgeois public sphere was structured to be affable to those privileged few who made up the powerful upperclass. While students participating in public sphere pedagogy application receive special training in their classrooms, the same is not necessarily true of community members who participate. This specialized student training draws two critiques. First, conceiving of public pedagogy as a form of instruction risks