Spiral
In mathematics, a spiral is a curve which emanates from a central point, getting progressively farther away as it revolves around the point.
Spirals and helices
Two major definitions of "spiral" in a respected American dictionary are:
Definition a describes a planar curve, that extends in both of the perpendicular directions within its plane; the groove on one side of a record closely approximates a plane spiral (and it is by the finite width and depth of the groove, but not by the wider spacing between than within tracks, that it falls short of being a perfect example); note that successive loops differ in diameter. In another example, the "center lines" of the arms of a spiral galaxy trace logarithmic spirals.
Definition b includes two kinds of 3-dimensional relatives of spirals:
Spiral (disambiguation)
A spiral is a curve which emanates from a central point, getting progressively farther away as it revolves around the point.
Spiral may also refer to:
Science, mathematics and art
Computer science
Transport
Film and television
Spiral (TV series)
Spiral (French: Engrenages, pronounced: [ɑ̃ɡʁəˈnaʒ]) is a French television police and legal drama series set in Paris. The show follows the lives and work of Paris police officers and the lawyers and judges who work at the Palais de Justice. It was created by the TV production company Son et Lumière.
The first series of eight-episodes started on Canal+ in France on 13 December 2005. The series was shown in the UK on BBC Four during the summer of 2006. It was the channel's first French-language drama series, attracting a modest but loyal audience (around 200,000) and firm critical approval. On 13 September 2009, BBC Four started showing the second series – another eight-part series, partly funded by the BBC – was broadcast from 12 May 2008. The third series was shown from 2 April 2011, and the fourth series from 9 February 2013 – both consisting of twelve episodes.
Series 5 was filmed in 2013 and broadcast in France in late 2014, and in the UK on BBC Four from 10 January 2015. The sixth series has been ordered.
Alena (film)
Alena is a 1947 Czechoslovak comedy film, directed by Miroslav Cikán. It stars Miluse Zoubková, Vladimír Repa, and Terezie Brzková.
References
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Saint Alena
Saint Alena (also written Alène or Alina) is a Christian saint who, if historical, was martyred around the year 640. She is sometimes referred to as Alena of Forest, or Alena of Brussels, having died in Forest, Belgium which is now one of the nineteen municipalities of Brussels.
Life of Saint Alena
The traditional account of Saint Alena's life, dating to the twelfth century, states that she was born in Dilbeek, just outside Brussels, Belgium, to pagan parents, the nobleman Levold and his wife, Hildegaart. Alena chose to be baptized without the knowledge of her parents. As a Christian, she had to attend Mass secretly.
When her father discovered that she was worshipping as a Christian, he came to the conclusion that Christians had bewitched her into conversion. He sent guards to bring her home; she resisted, and during the fighting she lost one arm. She subsequently died in prison due to her injuries.
Various (unspecified) miracles were claimed at the burial site of Alena's body, and one of Levold's subjects, Duke Omundus, had his sight restored by invoking Alena's prayers.
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