Roulette (curve) in this case, the point lies on the circle then the roulette is a cycloid. A related concept is a glissette, the curve described by a point attached to a given curve as it slides along two (or more) given curves. Formally speaking, the curves must be differentiable curves in the Euclidean plane. The "fixed curve" is kept invariant; the "rolling curve" is subjected to a continuous congruence transformation such that at all times the curves are tangent at a point of contact that moves with the same speed when taken along either curve (another way to express this constraint
What a Beautiful Name A video for the song was recorded at the Hillsong Conference in Sydney and was released on 30 September 2016. Music critic Matt Collar praised Hillsong Worship for their "passionate, faith-based sound" and wrote that fans of the group "will surely appreciate this emotive, uplifting Christian pop." Jake Gosselin attributes the popularity of the song in the Christian community to a number of factors. He writes that "What a Beautiful Name" is "singable." In practice this refers to the "small vocal range" of the song which is "one note over an octave." This translates to a song that is easy