Helix vs Isengard - What's the difference?
helix | isengard |
(mathematics) A curve on the surface of a cylinder or cone such that its angle to a plane perpendicular to the axis is constant; the three-dimensional curve seen in a screw or a spiral staircase.
(architecture) A small volute under the abacus of a Corinthian capital.
(anatomy) The incurved rim of the external ear.
An upside down midair 360° spin in playboating.