Helix

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 helices 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".

Types

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) 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.

Helix (comics)

Helix was a short-lived, science fiction and science fantasy imprint of DC Comics, launched in 1996 and discontinued in 1998. In early promotional materials prior to the release of the first title, the imprint was called Matrix instead of Helix. It was renamed because of the then-upcoming film, The Matrix. It featured a handful of ongoing monthly series, several limited series, and one short graphic novel.

Despite the involvement of successful science fiction/fantasy novelists Michael Moorcock, Lucius Shepard and Christopher Hinz, and established comics creators Howard Chaykin, Elaine Lee, Matt Howarth, Warren Ellis, Walt Simonson, and Garth Ennis, sales of the comic books were low, and most of the ongoing titles were cancelled after 12 or fewer issues. Ellis' Transmetropolitan was switched to the Vertigo imprint, where it continued for several more years before reaching its planned conclusion. Ennis' Bloody Mary mini-series and Michael Moorcock's Multiverse were later collected in Vertigo-label paperbacks and Moeller's Sheva's War was released as a graphic novel paperback by Dark Horse.

Helix (band)

Helix is a Canadian hard rock/heavy metal band. They formed in 1974, and are best known for their 1984 single "Rock You". The original lineup was formed by drummer Bruce Arnold, and consisted of lead vocalist Brian Vollmer, guitarists Ron Watson and Rick "Minstrel" Trembley, keyboardist Don Simmons, and bassist Keith "Bert" Zurbrigg. However, their most well known lineup, and the one that recorded "Rock You", was the 80s version of the band: Vollmer on vocals, accompanied by guitarists Brent "The Doctor" Doerner and Paul Hackman, bassist Daryl Gray, and drummer Greg "Fritz" Hinz. The history of the band has been marked by many lineup changes, with Vollmer being the sole constant member and only remaining member of the original lineup. Although Hackman was killed in a tour bus accident in 1992, the surviving members of the 80s lineup reunited in 2009 for an album and have continued to tour since 2011.

Helix have toured with bands such as Kiss, Aerosmith, Rush, Mötley Crüe, Alice Cooper, Whitesnake, Night Ranger, Heart, Quiet Riot, W.A.S.P., Ian Gillan and Motörhead among others.