Operation Sigma Sigma

The Sigma is an experimental glider developed in Britain from 1966 by a team led by Nicholas Goodhart. After disappointing performance during flight testing the Sigma was passed on to a Canadian group which carried out modifications, making the Sigma more competitive.

Design and development

Designed to compete in the 1970 World Championships, the team aimed to develop a wing that would climb well through a high lift coefficient and a large wing area, but equally had the "maximum possible reduction of area for cruise at low lift coefficients". At the same time for the minimum possible drag they aimed for "extensive" laminar flow. To achieve this they employed flaps that would alter both wing area and wing camber. Based on analysis of the nature of thermals encountered in cross-country flying, they reasoned that by having a slow turning circle, their sailplane could stay close to the central (and strongest) part of the thermal and gain maximum benefit.

Its unusual feature is its ability to vary its wing area using Fowler flaps. It had been tried before by the Hannover Akaflieg in 1938 with their AFH-4, the South African Beatty-Johl BJ-2 Assegai and the SZD Zefir gliders.

Sigma (cosmology)

Sigma in cosmology was a property of galaxies used when trying to work out the mystery of galaxies and their supermassive black holes.

History

In the late 1990s the NUKER experts had made observations with a spectroscope of two galaxies, one of an active galaxy with an active galactic nucleus called NGC10-68 and a dormant galaxy next door to us named Andromeda.

The observations are shown. The light from the centre in Andromeda galaxy was distorted proving the existence of super-massive black holes.

Other observations proved most galaxies had a similar centre whether it be active or dormant.

They then realised that the black holes must have something to do with a galaxy's formation, so they turned to something they thought was useless: the speed of the stars around the edge of the galaxy. This was Sigma, the speed of the stars at the edge of the galaxy supposedly unaffected by the mass of the black hole at the centre.

Usage In Cosmology

The NUKER team calculated the sigma of several stars in different galaxies and the mass of the black hole at the (nucleus) centre. They expected no correlation what so ever. But when plotting their results on a Scatter diagram and drawing a line of best fit they ended up with a positive correlation. It appeared that the heavier the black hole at the centre was the faster the stars within the galaxy travelled.

Sigma (duo)

Sigma is an English drum and bass duo consisting of Cameron Edwards and Joe Lenzie. They met at Leeds University at drum and bass nights. Their 2010 collaboration with DJ Fresh, "Lassitude", peaked at number 98 on the UK Singles Chart. Their single "Nobody to Love" topped the UK Singles Chart, becoming their first UK number one. Follow-up single "Changing", featuring Paloma Faith, also got to number one.

Career

Formation

Lenzie and Edwards met in 2006 at Leeds University; Cameron was working in local record store Tribe Records and with Echo Location's Obi running local night Event Horizon, while Lenzie was DJing hip-hop and warming up Event Horizon for such acts as Rahzel and Grandmaster Flash. Once they had finished in Leeds, they relocated to London and became a three-piece with Edwards' school friend Ben Mauerhoff, being signed under DJ Fresh's Breakbeat Kaos. After a while, long distances took their toll – Edwards and Mauerhoff were based in Surrey, whereas Lenzie was based in Harpenden, Hertfordshire and they couldn't get three people into the Harpenden studio – and Mauerhoff left. In December 2008 they formed their own record label, Life Recordings (so called because, according to Lenzie, the industry demanded that it be their life). Its inaugural release was a VIP mix of their early Bingo Beats single "El Presidente".

Therapy (Lodge novel)

Therapy (1995) is a novel by British author David Lodge.

The story concerns a successful sitcom writer, Laurence Passmore, plagued by middle-age neuroses and a failed marriage. His only problem seems to be an "internal derangement of the knee" but a mid-life crisis has struck and he is discovering angst. His familiar doses of cognitive therapy, aromatherapy, and acupuncture all offer no help, and he becomes obsessed with the philosophy of Kierkegaard. Moreover, Tubby, as Passmore is nicknamed, and referred to by several characters in the novel, undertakes a pilgrimage to Santiago de Compostela in order to find his first love.

Structure of the novel

The novel is divided into four parts. The first part is written as a journal, the second part is written in dramatic monologues, the third part consists of journal entries and a memoir and the fourth part is a narrative written after the events happened and Tubby has returned to London.

In the first part, Tubby starts writing a journal triggered by a description he had to write for his cognitive behavior therapist. Before that Tubby wrote only screenplays but no narrative texts. During the writing Tubby reflects upon his problems and depression.

Therapy (Mary J. Blige song)

"Therapy" is a song by American recording artist Mary J. Blige. It was written by Blige along with British musician Sam Smith and producer Eg White for The London Sessions (2014). Production on the track was hemled by White, Stephen Fitzmaurice, Rodney "Darkchild" Jerkins, and Jimmy Napes. Released as the album's leading single following buzz track "Right Now", it has since the top thirty on Billboard's Adult Contemporary chart.

Conception and release

"Therapy" was written by Blige and English musicians Sam Smith and Eg White. The pair was among a host of young British acts commissioned to work with Blige in London following the success of her version of "F for You", a remake of English electronic music duo Disclosure's fourth single from their debut studio album, Settle (2013), and her duet version of Smith's "Stay with Me". Initially composed for Smith's debut album In the Lonely Hour (2014), "Therapy" was already reference-vocaled when the White and Smith played it for Blige. Upon hearing it, Blige felt inspired: "It was like, 'OK. This is it. This is the first moment. This is the one that says I'm doing something different.' Slight lyrical and tonal changes were made to make it fit for her. On the process, Blige later elaborated: "At the end of the day, I pictured myself singing it. I went and sang the song. And it was perfect, 'cause I just felt like the message was universal. Because I think everybody needs a little bit. And it's not, you know, literally sitting in front of a doctor all the time. It could be whatever your therapy is. What works for you."

Therapy (disambiguation)

Therapy is the attempted remediation of a health problem.

Therapy may also refer to:

See also