Editing Helix (section)

===Handedness===
Helices can be either right-handed or left-handed. With the line of sight along the helix's axis, if a clockwise screwing motion moves the helix away from the observer, then it is called a right-handed helix; if towards the observer, then it is a left-handed helix. Handedness (or [[chirality (mathematics)|chirality]]) is a property of the helix, not of the perspective: a right-handed helix cannot be turned to look like a left-handed one unless it is viewed in a mirror, and vice versa.

[[File:Two Types of Helix.svg|thumb|'''Two types of helix shown in comparison'''. This shows the two [[chirality (mathematics)|chiralities]] of helices. One is left-handed and the other is right-handed. Each row compares the two helices from a different perspective. The chirality is a property of the object, not of the [[Perspectivity|perspective]] (view-angle)]]