- published: 06 Jul 2006
- views: 975385
A helix (pl: helixes or helices) is a type of smooth space curve, i.e. a curve in three-dimensional space. It has the property that the tangent line at any point makes a constant angle with a fixed line called the axis. Examples of helixes are coil springs and the handrails of spiral staircases. A "filled-in" helix – for example, a spiral ramp – is called a helicoid. Helices are important in biology, as the DNA molecule is formed as two intertwined helices, and many proteins have helical substructures, known as alpha helices. The word helix comes from the Greek word ἕλιξ, "twisted, curved".
Helices can be either right-handed or left-handed. With the line of sight along the helix's axis, if a clockwise screwing motion ملف:Elica-conica.gifmoves 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) is a property of the helix, not of the perspective: a right-handed helix cannot be turned or flipped to look like a left-handed one unless it is viewed in a mirror, and vice versa.
Helix - Rock You
Line 6 Helix, demo by Pete Thorn
Helix - Trailer #2
Helix full ride POV
Helix - Heavy Metal Love
Helix - Full Length Trailer
Line 6 Helix Review - 1st review in the world of a final production model!
Helix Deep Cuts The Knife
【MV】MYTH & ROID「STYX HELIX」Music Clip ショートVer.
Helix-Make me do anything you want
Line6 HELIX Lead Tone Quick Edit Demo
Что будет с HELIX (ХЕЛИКС)?
Line 6 Helix Multi Effects Guitar Pedal
Helix Roller Coaster POV - Some AMAZING footage of an awesome ride! Liseberg 2014
(instrumental)