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
Shine a Light (The Rolling Stones album) Shine a Light (The Rolling Stones album) Shine a Light is the soundtrack to The Rolling Stones concert film of the same name, directed by Martin Scorsese. It was released on 1 April 2008 in the UK by Polydor Records and one week later in the US by Interscope Records. Two different versions were released, one a double disc and the other a single disc. "Shine a Light" is the tenth concert album to be released by the Rolling Stones. This collection, like the two 2006 shows it was culled from, features no performances of songs from their 2005 album