In mathematics, a spiral is a curve which emanates from a central point, getting progressively farther away as it revolves around the point. Spiral or helix A "spiral" and a "helix" are two terms that are easily confused, but represent different objects. A spiral is typically a planar curve (that is, flat), like the groove on a record or the arms of a spiral galaxy. A helix, on the other hand, is a three-dimensional coil that runs along the surface of a cylinder, like a screw. There are many in… (More on Spiral)