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:
What Is This Thing Called Love? (Alexander O'Neal song) the United States, the single reached #21 on Billboard's Hot R&B/Hip-Hop Singles & Tracks. Credits are adapted from the album's liner notes. What Is This Thing Called Love? (Alexander O'Neal song) "What Is This Thing Called Love?" is a song written by Jimmy Jam and Terry Lewis and recorded by American recording artist Alexander O'Neal. It is the second single from the singer's fourth solo album, "All True Man" (1991). The song's distinctive backing vocals were performed by Lisa Keith. Following the successful chart performances of the "All True Man" single "All True Man", "What Is This Thing Called Love?"