Circle of a sphere the Equator the only great circle. By contrast, all meridians of longitude, paired with their opposite meridian in the other hemisphere, form great circles. The diameter of the sphere which passes through the center of the circle is called its axis and the endpoints of this diameter are called its poles. A circle of a sphere can also be defined as the set of points at a given angular distance from a given pole. When the intersection of a sphere and a plane is not empty or a single point, it is a circle. This can be seen as follows:
The Sphere (social network) manage their private, social and business lives such as private mailbox, Online chat, photo and video albums, geolocation, city guide. The-Sphere's network offers its members an online magazine. The-Sphere's magazine is called “Trends&Events”. Upon joining, members can learn about that and other of The Sphere's products and services. The-Sphere provides its member a concierge service. The Sphere provides its members an international address book. The-Sphere encourages off-line interactions between members. Recent Events include “Par Coeur Gala” to benefit the Make-A-Wish Foundation France association and hosted by The-Sphere ambassador Eva Longoria. The Sphere (social network) The-Sphere.com is a social network service.