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 (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".
Sigma baryon
The Sigma baryons are a family of subatomic hadron particles which have a +2, +1 or −1 elementary charge or are neutral. They are baryons containing three quarks: two up and/or down quarks, and one third quark, which can be either a strange (symbols Σ+, Σ0, Σ−), a charm (symbols Σ++
c, Σ+
c, Σ0
c), a bottom (symbols Σ+
b, Σ0
b, Σ−
b) or a top (symbols Σ++
t, Σ+
t, Σ0
t) quark. However, the top Sigmas are not expected to be observed as the Standard Model predicts the mean lifetime of top quarks to be roughly 6975500000000000000♠5×10−25 s. This is about 20 times shorter than the timescale for strong interactions, and therefore it does not form hadrons.
List
The symbols encountered in these lists are: I (isospin), J (total angular momentum), P (parity), u (up quark), d (down quark), s (strange quark), c (charm quark), t (top quark), b (bottom quark), Q (charge), B (baryon number), S (strangeness), C (charmness), B′ (bottomness), T (topness), as well as other subatomic particles (hover for name).
Aggy
Aggy may be a diminutive form of the given names Agnatha, Agamemnon, Agata, Agatha, Agnes or Aigerim. It may also be a diminutive form of a family name that begins with 'Ag-'. See also Aggie. In more recent times, it is currently being used as a form of slang in the American culture.
People who are known as 'Aggy' include:
Places known as 'Aggy' include:
Face (album)
Face is the debut album of Of Cabbages and Kings, released by Purge/Sound League in 1988.
Track listing
All music composed by Of Cabbages and Kings.
Personnel
Adapted from the Face liner notes.
Release history
References
Face (sociological concept)
The term face idiomatically refers to one's own sense of dignity or prestige in social contexts. In the English-speaking world, the expression "To save face" describes the lengths that an individual may go to in order to preserve their established position in society, taking action to ensure that one is not thought badly of by their peers. It is a fundamental concept in the fields of sociology, sociolinguistics, semantics, politeness theory, psychology, political science, communication, and face negotiation theory, and translates at least somewhat equivalently into many world languages, both Germanic and otherwise.
Definitions
Although Lin Yutang claimed "Face cannot be translated or defined", compare these definitions:
Face (a cappella group)
Face are a Boulder, Colorado-based "all-vocal rock band," or a cappella group performing mostly rock music. National appearances and awards include one of the eight original groups on NBC's premiere season of "The Sing-Off" (2009), two-time Runner-Up and two-time National Audience Favorite at the National Finals of Harmony Sweepstakes A Cappella Festival (2005 and 2007), and Runner-Up for Favorite Pop/Rock Group from the Contemporary A Cappella Society's Community Awards (2007). Based in Boulder, Colorado, Face has also garnered numerous local awards including Best Local Band by The Denver Channel's A-List Awards (2013), Best Local Musician by Boulder Weekly's Best of Boulder Awards (2009) and third-place for Best Local Band by The Denver Channel's A-List Awards (2009).
History
The idea for Face grew out of a university a cappella experience. Both Ben Lunstad and Joseph DiMasi had formed and performed with undergraduate a cappella groups. They met in grad school in 2000 at the University of Colorado in Boulder while singing with CU's In The Buff. Deciding that In The Buff wasn't exactly what they were looking for, Ben and DiMasi co-founded the award-winning Extreme Measures.
Podcasts:
