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In 2013 the graphics were changed again, to coincide with the move to New Broadcasting House. The typeface was changed back to Helvetica.
These were updated again in July 2019 when the BBC redesigned its on-air look with the growth of television viewing on smartphones and tablets. These included again redesigned, larger headline straplines sharply contrasting with the background (drawing criticism for obscuring content) using the BBC Reith typeface with larger text. Despite this, the 2008 titles and music continue to be used for the updated local titles.
The Lambert Report.
The Lambert Report into the channel's performance in 2002 called upon News 24 to develop a better brand of its own, to allow viewers to differentiate between itself and similar channels such as Sky News. As a direct result of this, a brand new style across all presentation for the channel launched on 8 December 2003 at 09:00. Philip Hayton and Anna Jones were the first two presenters on the set, the relaunch of which had been put back a week due to previous power disruptions at Television Centre where the channel was based. The new designs also featured a dynamic set of titles for the channel; the globe would begin spinning from where the main story was taking place, while the headline scrolled around in a ribbon; this was occasionally replaced by the BBC News logo. The titles concluded with a red globe surrounded by a red stylised clamshell and BBC News ribbons forming above the BBC News logo.
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Bulletins on BBC One moved into a new set in January 2003 although retained the previous ivory Lambie-Nairn titles until February 2004. News 24 updated the title colours slightly to match those of BBC One bulletins in time for the 50th anniversary of BBC television news on 5 July 2004.
Countdown sequence.
An important part of the channel's presentation since launch has been the top of the hour countdown sequence, since there is no presentation system with continuity announcers so the countdown provides a link to the beginning of the next hour. A similar musical device is used on BBC Radio 5 Live, and mirrors the pips on BBC Radio 4.
Previous styles have included a series of fictional flags set to music between 1997 and 1999 before the major relaunch, incorporating the new contemporary music composed by David Lowe, and graphics developed by Lambie-Nairn. Various images, originally ivory numbers fully animated against a deep red background, were designed to fit the pace of the channel, and the music soon gained notoriety, and was often satirised and parodied in popular culture. Images of life around the UK were added in replacement later with the same music, together with footage of the newsroom and exterior of Television Centre. The 2003 relaunch saw a small change to this style with less of a metropolitan feel to the footage.
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A new sequence was introduced on 28 March 2005, designed and created by Red Bee Media and directed by Mark Chaudoir. The full version ran for 60 seconds, though only around 30 seconds were usually shown on air. The music was revised completely but the biggest change came in the footage used – reflecting the methods and nature of newsgathering, while a strong emphasis was placed on the BBC logo itself. Satellite dishes are shown transmitting and receiving red "data streams". In production of the countdown sequence, Clive Norman filmed images around the United Kingdom, Richard Jopson in the United States, while BBC News camerapeople filmed images from Iraq, Beijing (Tiananmen Square), Bund of Shanghai, Africa, as well as areas affected by the 2004 Asian tsunami and others.
The sequence has since seen several remixes to the music and a change in visuals to focus more on the well-known journalists, with less footage of camera crews and production teams. Changes have also seen the channel logo included during the sequences and at the end, as well as the fonts used for the time. The conclusion of the countdown was altered in 2008 to feature the new presentation style, rather than a data stream moving in towards the camera. Also in 2008, the graphic for the countdown changed, resembling the BBC One Rhythm and Movement idents, due to the logo being in a red square in the bottom left corner.
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To coincide with the move of BBC News to Broadcasting House, on 18 March 2013 the countdown was updated again along with several other presentation elements. Three of the most striking features of the new countdown include music performed by the BBC Concert Orchestra, a redesign of the "data streams" and the ending of the sequence no longer fading to the BBC News globe and logo, but instead stopping with a time-lapse shot outside the corporation's headquarters. The countdown was also extended to 87 seconds, which was fully shown before the first hour from Broadcasting House. In 2019, the countdown started using the BBC's new Reith font but otherwise retained the same style.
A full three-minute version of the countdown music was made available on BBC News Online and David Lowe's own website after a remix on 16 May 2006.
An international version of the countdown was launched on BBC World News on 5 September 2005 featuring more international content and similar music. Various changes have been made to the music and visuals since then, with presentation following the style of BBC News. The visuals in the sequence were updated on 10 May 2010. In June 2011, further imagery was added relating to recent events, including the conflict in Libya and views of outside 10 Downing Street. In January 2013, as part of the relocation of BBC News to Broadcasting House in Central London, BBC World News received a new countdown in the same style as the BBC News Channel's updated countdown, with some minor differences.
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In April 2021, a new "sombre" version of the countdown was played, with no "data streams" and slower shots of places within the UK, or in the case of the international version, timelapse shots across the world. Both were introduced to run up to programmes immediately following the death of Prince Philip, Duke of Edinburgh, and were used again following the death of Queen Elizabeth II in 2022.
To coincide with the integration of BBC World News into BBC News, the countdown sequence was slightly refreshed in April 2023 to follow the new "Chameleon" branding scheme used by BBC television since October 2021, with the countdown now centred between the BBC and "News" wordmarks at the top- and bottom-centre of the screen respectively.
Viewing audience figures.
The Daily Telegraph reported in November 2021, "BBC News reaches 370,000 for its best performing slots". |
Bill Oddie
William Edgar Oddie (born 7 July 1941) is an English actor, artist, birder, comedian, conservationist, musician, songwriter, television presenter and writer. He was a member of comedy trio The Goodies.
A birder since his childhood in Quinton, Birmingham, Oddie has established a reputation as a naturalist, conservationist, and television presenter on wildlife issues. Some of his books are illustrated with his own paintings and drawings. His wildlife programmes for the BBC include "Springwatch" and "Autumnwatch", "How to Watch Wildlife", "Wild in Your Garden", "Birding with Bill Oddie", "Britain Goes Wild with Bill Oddie" and "Bill Oddie Goes Wild".
Early life.
Oddie was born on 7 July 1941 in Rochdale, Lancashire, but moved to Birmingham at a young age. He was raised by his father, Harry Oddie, and grandmother, Emily. His father was assistant chief accountant at the Midlands Electricity Board. His mother, Lilian, was diagnosed with schizophrenia and, during most of his youth, was hospitalised at the Barnsley Hall Hospital psychiatric facility. He was educated at Lapal Primary School, Halesowen Grammar School (now The Earls High School, Halesowen) and King Edward's School, Birmingham, an all-boys direct grant school, where he captained the school's rugby union team. He then studied English literature at Pembroke College, Cambridge.
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Career.
Comedy.
While at Cambridge University Oddie appeared in several Footlights Club productions. One of these, a revue called "A Clump of Plinths", was so successful at the Edinburgh Festival Fringe that it was renamed "Cambridge Circus" and transferred to the West End in London, then New Zealand and Broadway in September 1964. Meanwhile, still at Cambridge, Oddie wrote scripts for and appeared briefly in TV's "That Was the Week That Was".
He appeared in Bernard Braden's television series "On The Braden Beat" in 1964. Subsequently, he was a key member of the performers in the BBC radio series "I'm Sorry, I'll Read That Again", where many of his musical compositions were featured. Some were released on the album "Distinctly Oddie" (Polydor, 1967). He was one of the first performers to parody a rock song, arranging the traditional Yorkshire folk song "On Ilkla Moor Baht'at" in the style of Joe Cocker's hit rendition of the Beatles' "With a Little Help from My Friends" (released on John Peel's Dandelion Records in 1970 and featured in Peel's special box of most-treasured singles), and singing "Andy Pandy" in the style of a brassy soul number such as Wilson Pickett or Geno Washington might perform. In many shows he would do short impressions of Hughie Green.
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On television Oddie was co-writer and performer in the comedy series "Twice a Fortnight" with Graeme Garden, Terry Jones, Michael Palin and Jonathan Lynn. Later he was co-writer and performer in the comedy series "Broaden Your Mind" with Tim Brooke-Taylor and Graeme Garden, for which he became a cast member for the second series.
Oddie, Brooke-Taylor and Garden then co-wrote and appeared in their television comedy series "The Goodies" (1970–1982). The Goodies also released records, including "Father Christmas Do Not Touch Me"/"The In-Betweenies", "The Funky Gibbon" (co-written by Oddie with Dave MacRae) and "Black Pudding Bertha", which were hit singles in 1974–75. They reformed, briefly, in 2005 for a successful 13-date tour of Australia.
Oddie, Brooke-Taylor and Garden voiced characters on the 1983 animated children's programme "Bananaman".
In the Amnesty International show "A Poke in the Eye (With a Sharp Stick)", Oddie, Brooke-Taylor and Garden sang their hit song "Funky Gibbon". They also appeared on "Top of the Pops" with the song. Together with Garden (who is a qualified medical doctor), Oddie co-wrote many episodes of the television comedy series "Doctor in the House", including most of the first season and all of the second season. He has occasionally appeared on the BBC Radio 4 panel game "I'm Sorry I Haven't a Clue", on which Garden is and Brooke-Taylor was a regular panellist. In 1982 Garden and Oddie wrote, but did not perform in, a six-part science-fiction sitcom called "Astronauts" for Central and ITV. The show was set in an international space station in the near future.
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Natural history.
Oddie's first published work was an article about the birdlife of Birmingham's Bartley Reservoir in the West Midland Bird Club's 1962 Annual Report. (He is first credited in the 1956 report, in which reports of his bird observations are tagged with his initials "WEO".) He has since written a number of books about birds and birdwatching as well as articles for many specialist publications including "British Birds", "Birdwatching Magazine" and "Birdwatch".
He discussed bird-song recordings with Derek Jones in an August 1973 BBC Radio 4 programme called "Sounds Natural".
In the autumn of 1976, Oddie was involved in the successful identification of Britain's first-ever record of Pallas's reed bunting on Fair Isle, Shetland.
One of Oddie's first forays into the world of television natural history was as a guest on "Animal Magic" in December 1977. Another early natural-history radio appearance was in October, as the guest on Radio 4's "Through My Window", discussing the birds of Hampstead Heath.
On 30 July 1985, he was the subject of a 50-minute "Nature Watch Special: Bill Oddie – Bird Watcher", in which he was interviewed by Julian Pettifer at places where he had spent time birding, including Bartley Reservoir, the Christopher Cadbury Wetland Reserve at Upton Warren, RSPB Titchwell Marsh and Blakeney Point.
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Oddie has since hosted a number of successful nature programmes for the BBC, many produced by Stephen Moss, including:
The first broadcast, in 2004, of "Britain Goes Wild" set a record for its timeslot of 8 pm on BBC Two of 3.4 million viewers, one million more than the Channel 4 programme showing at that time. "Britain Goes Wild", renamed "Springwatch" the following year, became a wildlife broadcasting phenomenon, attracting over 4 million viewers.
He became president of the West Midland Bird Club in 1999, having been vice-president since 1991, and is a former member of the council of the RSPB. Oddie is also a President of the League Against Cruel Sports and a vice-president of the British Trust for Conservation Volunteers. He practised as a bird ringer but allowed his licence to lapse.
In 2003, Oddie set up a half-marathon to raise money for various wildlife charities in his birth town of Rochdale.
In 2011, Oddie featured as an investigator in "Snares Uncovered: killers in the countryside". The film was an exposé of snaring in Scotland and was commissioned by the animal protection charity OneKind.
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Music.
Oddie wrote original music at Cambridge University for the Footlights and later wrote comic songs for "I'm Sorry, I'll Read That Again". He also wrote a number of comic songs for The Goodies, most of which he also performed.
In the 1960s and early 1970s, Oddie released a number of singles and at least one album. One of the former, issued in 1970 on John Peel's Dandelion Records label (Catalogue No: 4786), was "On Ilkla Moor Baht 'at", performed in the style of Joe Cocker's "With a Little Help from My Friends". The B-side, "Harry Krishna", featured the Hare Krishna chant, substituting the names of contemporary famous people called Harry, including Harry Secombe, Harry Worth, Harry Lauder and Harry Corbett, as well as puns such as "Harry [Hurry] along now" and "Harrystotle [Aristotle]" and ending with "Harry-ly [I really] must go now". Both tracks appear on the compilation CD "Life Too, Has Surface Noise: The Complete Dandelion Records Singles Collection 1969–1972" (2007). In 1966 he was credited as the vocalist with Spencer's Washboard Kings on "Five Feet Two" (Rayrick LCR1001a). The vocalist on the B-side of this 45rpm single, "If You Knew Susie", was Jean Hart, Oddie's future wife.
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He played the drums and saxophone and appeared as Cousin Kevin in a production of The Who's rock opera "Tommy" by London Symphonic Orchestra and English Chamber Choir at the Rainbow Theatre, Finsbury Park, London, on 13 and 14 December 1973. He has also contributed vocals to a Rick Wakeman album, "Criminal Record".
He recorded a single, "Superspike", with John Cleese and a group of UK athletes, billed the "Superspike Squad", to fund the latter's attendance at the 1976 Summer Olympics in Montreal. He co-produced the record with Stephen Shane.
In 1986 Oddie took part in the English National Opera production of the Gilbert and Sullivan comic opera "The Mikado", in which he appeared in the role of the Lord High Executioner, taking over the role from Eric Idle. During the early 1990s Oddie was a DJ for London-based jazz radio station 102.2 Jazz FM.
In 2007, Oddie appeared on the BBC series "Play It Again". In the episode he attempts to realise his dream of becoming a rock guitarist. Initially teacher Bridget Mermikides tries to teach him using traditional methods but he rebels: instead he turns to old friends Albert Lee, Dave Davies (of The Kinks) and Mark Knopfler for advice and strikes out on his own. He succeeds in the target of playing lead guitar for his daughter Rosie's band at her 21st birthday party and even manages to impress his erstwhile teacher.
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In November 2010, he agreed, along with fellow members of The Goodies, to rerelease their 1970s hit "The Funky Gibbon" to raise funds for the International Primate Protection League's Save the Gibbon appeal.
Other television and voice work.
Oddie appeared as the hapless window cleaner in the Eric Sykes' comedy story "The Plank" in 1967. He also presented the live children's Saturday morning entertainment show "Saturday Banana" (ITV/Southern Television) during the late 1970s. In the late 1980s he was a presenter of the BBC TV show "Fax" (a show about 'facts').
In 1981, he appeared as a Telethon celebrity in New Zealand, hosted by TV1. He voices Asterix in the UK dub of the 1989 animated film "Asterix and the Big Fight" (an animated adaptation of the books "Asterix and the Big Fight" and "Asterix and the Soothsayer", novelized as "Operation Getafix").
In 1992, he was a guest star in the US comedy television series "Married... with Children" for a three-part episode set in England.
He voiced the chimney sweep in the 1996 film "The Willows in Winter".
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In 1997 and 1998, he appeared on the Channel 4 archaeological programme "Time Team", as the team excavated a Roman villa site in Turkdean, Gloucestershire.
He was the compère of a daytime BBC gameshow "History Hunt" (in 2003); and has appeared in the "Doctor Who" audio drama "Doctor Who and the Pirates". In 2004, he appeared on the first ever episode of the BBC series "Who Do You Think You Are?", in which he looked into his ancestry: he was visibly moved by its revelations. In 2005, he took part in "Rolf on Art – the big event at Trafalgar Square" and in September that year was also a celebrity guest along with Lynda Bellingham on the ITV1 programme "Who Wants to Be a Millionaire". He also gave opinions on 100 greatest cartoons on Channel 4 that year, talking about "Tom and Jerry" and cartoon incidents such as the "Asses of Fire skit" in "".
In 2006, Oddie appeared in the BBC show "Never Mind the Buzzcocks", and also appeared on the topical quiz show "8 out of 10 Cats". He was also the voice behind many B&Q adverts throughout 2006/2007. On 25 May 2007, Oddie made a cameo appearance on Ronni Ancona's new comedy sketch show, "Ronni Ancona & Co".
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Also in 2007, three artists each painted a portrait of Oddie, as part of the BBC programme "Star Portraits with Rolf Harris". One of the artists, Mark Roscoe, later revealed a dislike of Oddie, claiming to have included hidden insults in his work.
He hosted the genealogy-based series "My Famous Family", broadcast on UKTV History in 2007. In 2008, Oddie was a guest on Jamie Oliver's television special "Jamie's Fowl Dinners", talking about free-range chickens.
He also appeared on "Would I Lie To You?" in 2011, where he revealed that he was saved from drowning by Freddy from popular children's series "Rainbow" and "Rod, Jane and Freddy" while on holiday in the Seychelles.
In February 2015, Oddie appeared in "The Keith Lemon Sketch Show" as the narrator of the sketch "Ed Sheeran Watch".
He appeared as a contestant on a celebrity edition of "Fifteen to One" in August 2015 and the following month he appeared on "Through the Keyhole".
He has appeared three times on the programme "Pointless Celebrities", the most recent appearance being in 2016.
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In 2017, he appeared in three episodes of "The Real Marigold Hotel".
In 2018, he featured on the programme "The Two Ronnies: In Their Own Words". In 2019, he appeared on the show "".
In 2020, Oddie appeared in the documentary "Celebrity Britain by Barge: Then & Now".
2013 Australian tour.
Oddie undertook an Australian tour during June 2013 in all of the mainland states capital cities – Brisbane, Sydney, Melbourne, Adelaide and Perth – in a series of one-off shows, "An Oldie but a Goodie". A video message from Tim Brooke-Taylor and Graeme Garden was shown during the performances. Oddie made personal appearances on both "The Project" and "Adam Hills Tonight" TV shows during the tour; he also filmed a guest-programming spot for the ABC-TV's all-night music video show "Rage".
Personal life.
Family.
In 1966, Oddie married Jeanne Hart, and from this marriage he has two daughters, one of whom is the actress Kate Hardie. The couple later divorced.
In 1983, Oddie married Laura Beaumont-Giles. The couple have worked on a variety of projects for children, including film scripts, drama and comedy series, puppet shows and books. They have a daughter, Rosie, born in October 1985, and live in Hampstead, North London. Rosie Oddie is a musician, also using the name Rosie Bones.
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Mental health.
Oddie has experienced depression for most of his life before being diagnosed with clinical depression in 2001. In March 2009 he was reportedly admitted to Capio Nightingale psychiatric hospital in Marylebone for treatment. His then agent, David Foster, said: "Bill gets these bouts every two or three years where he gets down for about two weeks and recovers. He sometimes goes into hospital or takes a break or has a change of scenery to recharge his batteries." In January 2010 Oddie spoke to the media, revealing that he had two separate stays in different hospitals, only being discharged "in time for Christmas". He said that he was dealing with depression and bipolar disorder, describing the period as "probably the worst 12 months of my life". Oddie stated that he was planning to meet BBC executives to discuss his return to television work.
His illness meant that Oddie did not appear in the 2009 and 2010 series of "Springwatch", although he made a guest appearance in the penultimate episode of the latter. He subsequently said he was dismissed from "Springwatch" and that this had caused the depressive illness.
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Oddie presented the BBC Radio 4 Appeal programme on 10 August 2014 on behalf of the charity Bipolar UK. He revealed that as a consequence of his bipolar disorder he had attempted suicide during one of his depressive episodes. On the UK TV programme "Who Do You Think You Are?" he attributed his depression and bipolar disorder as an adult to his minimal and painful relationship with his mother.
Political views.
Oddie supports the Green Party. In October 2014, on the BBC's "Sunday Morning Live", he stated that he wanted a limit on the number of children that British families can have, saying that he was "very often ashamed" to be British, calling them "a terrible race".
Honours.
In 2002, Oddie became the third person to decline to appear on "This Is Your Life" but changed his mind a few hours later. On 16 October 2003 Oddie was made an OBE for his service to wildlife conservation in a ceremony at Buckingham Palace. He wore a camouflage shirt and crumpled jacket to receive his medal. In June 2004 Oddie and Johnny Morris were jointly profiled in the first of a three-part BBC Two series "The Way We Went Wild", about television wildlife presenters. In May 2005 he received the British Naturalists' Association's Peter Scott Memorial Award, from BNA president David Bellamy, "in recognition of his great contribution to our understanding of natural history and conservation." He is a recipient of the RSPB Medal.
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On 30 June 2009, he was proposed for inclusion in the Birmingham Walk of Stars, with the public invited to vote.
Bibliography.
Bill Oddie also co-wrote the Springwatch & Autumnwatch book with Kate Humble and Simon King.
Co-written with the other members of The Goodies:
Co-written with Laura Beaumont:
In popular culture.
In the fictional world of comedy character Alan Partridge, Oddie is an unseen presence in Alan's life, buying him dressing gowns for Christmas and being part of a radicalised RSPB. He has also been referenced, often humorously, by the hosts of "Top Gear". |
Broadway (Manhattan)
Broadway () is a street and major thoroughfare in the U.S. state of New York. The street runs from Battery Place at Bowling Green in the south of Manhattan for through the borough, over the Broadway Bridge, and through the Bronx, exiting north from New York City to run an additional through the Westchester County municipalities of Yonkers, Hastings-on-Hudson, Dobbs Ferry, Irvington, Tarrytown, and Sleepy Hollow, after which the road continues, but is no longer called "Broadway". The latter portion of Broadway north of the George Washington Bridge/I-95 underpass comprises a portion of U.S. Route 9.
It is the oldest north–south main thoroughfare in New York City, with much of the current street said to have begun as the Wickquasgeck trail before the arrival of Europeans. This then formed the basis for one of the primary thoroughfares of the Dutch New Amsterdam colony, which continued under British rule, although most of it did not bear its current name until the late 19th century. Some portions of Broadway in Manhattan are interrupted for continuous vehicle traffic, including Times Square, Herald Square, and Union Square, and instead used as pedestrian-only plazas. South of Columbus Circle, the road is one-way going southbound.
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Broadway in Manhattan is known widely as the heart of the American commercial theatrical industry, and is used as a metonym for it, as well as in the names of alternative theatrical ventures such as Off-Broadway and Off-off-Broadway.
History.
Colonial history.
Broadway was originally the Wickquasgeck trail, carved into the brush of Manhattan by its Native American inhabitants. This trail originally snaked through swamps and rocks along the length of Manhattan Island.
Upon the arrival of the Dutch, the trail was widened and soon became the main road through the island from "Nieuw Amsterdam" at the southern tip. The Dutch explorer and entrepreneur David Pietersz. de Vries gives the first mention of it in his journal for the year 1642 ("the Wickquasgeck Road over which the Indians passed daily"). The Dutch called it the "Heeren Wegh" or "Heeren Straat", meaning "Gentlemen's Way" or "Gentlemen's Street" – echoing the name of a similar street in Amsterdam – or "High Street" or "the Highway"; it was renamed "Broadway" after the British took over the city, because of its unusual width. Although currently the name of the street is simply "Broadway", in a 1776 map of New York City, it is labeled as "Broadway Street".
18th century.
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In the 18th century, Broadway ended at the town commons north of Wall Street. The part of Broadway in what is now Lower Manhattan was initially known as Great George Street. Traffic continued up the East Side of the island via Eastern Post Road and the West Side via Bloomingdale Road, which opened in 1703, continued up to 117th Street and contributed to the development of the modern Upper West Side into an upscale area with mansions.
In her 1832 book "Domestic Manners of the Americans", Fanny Trollope wrote of her impressions of New York City in general and of Broadway in particular:
19th century.
In 1868, Bloomingdale Road between 59th Street (at the Grand Circle, now Columbus Circle) and 155th Streets would be paved and widened, becoming an avenue with landscaped medians. It was called "Western Boulevard" or "The Boulevard". An 1897 official map of the city shows a segment of what is now Broadway as "Kingsbridge Road" in the vicinity of Washington Heights.
On February 14, 1899, the name "Broadway" was extended to the entire Broadway / Bloomingdale / Boulevard / Kingsbridge complex.
20th century.
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In the 20th century, a 30-block stretch of Broadway, extending mainly between Times Square at 42nd Street and Sherman Square at 72nd Street, formed part of Manhattan's "Automobile Row". Before the first decade of the 20th century, the area was occupied mostly by equestrian industries and was "thoroughly lifeless", but by 1907, "The New York Times" characterized this section of Broadway as having "almost a solid line of motor vehicle signs all the way from Times Square to Sherman Square". In the late 1900s and early 1910s, several large automobile showrooms, stores, and garages were built on Broadway, including the U.S. Rubber Company Building at 58th Street, the B.F. Goodrich showroom at 1780 Broadway (between 58th and 57th Streets), the Fisk Building at 250 West 57th Street, and the Demarest and Peerless Buildings at 224 West 57th Street.
Broadway once was a two-way street for its entire length. The present status, in which it runs one-way southbound south of Columbus Circle (59th Street), came about in several stages. On June 6, 1954, Seventh Avenue became southbound and Eighth Avenue became northbound south of Broadway. None of Broadway became one-way, but the increased southbound traffic between Columbus Circle (Eighth Avenue) and Times Square (Seventh Avenue) caused the city to re-stripe that section of Broadway for four southbound and two northbound lanes. Broadway became one-way from Columbus Circle south to Herald Square (34th Street) on March 10, 1957, in conjunction with Sixth Avenue becoming one-way from Herald Square north to 59th Street and Seventh Avenue becoming one-way from 59th Street south to Times Square (where it crosses Broadway). On June 3, 1962, Broadway became one-way south of Canal Street, with Trinity Place and Church Street carrying northbound traffic.
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Another change was made on November 10, 1963, when Broadway became one-way southbound from Herald Square to Madison Square (23rd Street) and Union Square (14th Street) to Canal Street, and two routes – Sixth Avenue south of Herald Square and Centre Street, Lafayette Street, and Fourth Avenue south of Union Square – became one-way northbound. Finally, at the same time as Madison Avenue became one-way northbound and Fifth Avenue became one-way southbound, Broadway was made one-way southbound between Madison Square (where Fifth Avenue crosses) and Union Square on January 14, 1966, completing its conversion south of Columbus Circle.
21st century.
In 2001, a one-block section of Broadway between 72nd Street and 73rd Street at Verdi Square was reconfigured. Its easternmost lanes, which formerly hosted northbound traffic, were turned into a public park when a new subway entrance for the 72nd Street station was built in the exact location of these lanes. Northbound traffic on Broadway is now channeled onto Amsterdam Avenue to 73rd Street, makes a left turn on the three-lane 73rd Street, and then a right turn on Broadway shortly afterward.
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In August 2008, two traffic lanes from 42nd to 35th Streets were taken out of service and converted to public plazas. Bike lanes were added on Broadway from 42nd Street to Union Square.
Since May 2009, the portions of Broadway through Duffy Square, Times Square, and Herald Square have been closed entirely to automobile traffic, except for cross traffic on the Streets and Avenues, as part of a traffic and pedestrianization experiment, with the pavement reserved exclusively for walkers, cyclists, and those lounging in temporary seating placed by the city. The city decided that the experiment was successful, and decided to make the change permanent in February 2010. Though the anticipated benefits to traffic flow were not as large as hoped, pedestrian injuries dropped dramatically and foot traffic increased in the designated areas; the project was popular with both residents and businesses. The current portions converted into pedestrian plazas are between West 47th and 42nd Streets within Times and Duffy Squares, and between West 35th and 33rd Streets in the Herald Square area. Additionally, portions of Broadway in Madison Square and Union Square have been dramatically narrowed, allowing ample pedestrian plazas to exist along the side of the road.
2010s.
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A terrorist attempted to set off a bomb on Broadway in Times Square on May 1, 2010. The attempted bomber was sentenced to life in prison.
In May 2013, the NYCDOT decided to redesign Broadway between 35th and 42nd Streets for the second time in five years, owing to poor connections between pedestrian plazas and decreased vehicular traffic. With the new redesign, the bike lane is now on the right side of the street; it was formerly on the left side adjacent to the pedestrian plazas, causing conflicts between pedestrian and bicycle traffic.
In spring 2017, as part of a capital reconstruction of Worth Square, Broadway between 24th and 25th Streets was converted to a shared street, where through vehicles are banned and delivery vehicles are restricted to . Delivery vehicles go northbound from Fifth Avenue to 25th Street for that one block, reversing the direction of traffic and preventing vehicles from going south on Broadway south of 25th Street. The capital project expands on a 2008 initiative where part of the intersection of Broadway and Fifth Avenue was repurposed into a public plaza, simplifying that intersection. As part of the 2017 project, Worth Square was expanded, converting the adjoining block of Broadway into a "shared street".
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In September 2019, the pedestrian space in the Herald Square area was expanded between 33rd and 32nd Streets alongside Greeley Square. Five blocks of Broadway—from 50th to 48th, 39th to 39th, and 23rd to 21st Street—were converted into shared streets in late 2021. The block between 40th and 39th Streets, known as Golda Meir Square, was closed to vehicular traffic at that time.
2020s.
During 2020, the section from 31st to 25th Street was converted to a temporary pedestrian-only street called NoMad Piazza as part of the New York City Department of Transportation's Open Streets program. Following the success of the pedestrian-only street, the Flatiron/23rd Street Partnership BID closed the section between 25th and 27th Streets to vehicular traffic again during 2021 and 2022.
City officials announced in March 2023 that the section of Broadway between 32nd and 21st Streets would be redesigned as part of a project called Broadway Vision. The section between 32nd and 25th Streets would receive a bidirectional bike lane and would be converted to a shared street. Cars would be banned permanently from 27th to 25th Street. That work was finished the same July. In March 2024, the DOT announced plans to convert the section between 17th and 21st Streets into a shared street.
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Route.
Route description.
Broadway runs the length of Manhattan Island, roughly parallel to the North River (the portion of the Hudson River bordering Manhattan), from Bowling Green at the south to Inwood at the northern tip of the island. South of Columbus Circle, it is a one-way southbound street. Since 2009, vehicular traffic has been banned at Times Square between 47th and 42nd Streets, and at Herald Square between 35th and 33rd Streets as part of a pilot program; the right-of-way is intact and reserved for cyclists and pedestrians. From the northern shore of Manhattan, Broadway crosses Spuyten Duyvil Creek via the Broadway Bridge and continues through Marble Hill (a discontiguous portion of the borough of Manhattan) and the Bronx into Westchester County. U.S. 9 continues to be known as Broadway until its junction with NY 117.
Lower Manhattan.
The section of lower Broadway from its origin at Bowling Green to City Hall Park is the historical location for the city's ticker-tape parades, and is sometimes called the "Canyon of Heroes" during such events. West of Broadway, as far as Canal Street, was the city's fashionable residential area until ; landfill has more than tripled the area, and the Hudson River shore now lies far to the west, beyond Tribeca and Battery Park City.
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Broadway marks the boundary between Greenwich Village to the west and the East Village to the east, passing Astor Place. It is a short walk from there to New York University near Washington Square Park, which is at the foot of Fifth Avenue. A bend in front of Grace Church allegedly avoids an earlier tavern; from 10th Street it begins its long diagonal course across Manhattan, headed almost due north.
Midtown Manhattan.
Because Broadway preceded the grid that the Commissioners' Plan of 1811 imposed on the island, Broadway crosses midtown Manhattan diagonally, intersecting with both the east–west streets and north–south avenues. Broadway's intersections with avenues, marked by "squares" (some merely triangular slivers of open space), have induced some interesting architecture, such as the Flatiron Building.
At Union Square, Broadway crosses 14th Street, merges with Fourth Avenue, and continues its diagonal uptown course from the Square's northwest corner; Union Square is the only location wherein the physical section of Broadway is discontinuous in Manhattan (other portions of Broadway in Manhattan are pedestrian-only plazas). At Madison Square, the location of the Flatiron Building, Broadway crosses Fifth Avenue at 23rd Street, thereby moving from the east side of Manhattan to the west, and is discontinuous to vehicles for a one-block stretch between 24th and 25th Streets. At Greeley Square (West 32nd Street), Broadway crosses Sixth Avenue (Avenue of the Americas), and is discontinuous to vehicles until West 35th Street. Macy's Herald Square department store, one block north of the vehicular discontinuity, is located on the northwest corner of Broadway and West 34th Street and southwest corner of Broadway and West 35th Street; it is one of the largest department stores in the world.
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One famous stretch near Times Square, where Broadway crosses Seventh Avenue in midtown Manhattan, is the home of many Broadway theatres, housing an ever-changing array of commercial, large-scale plays, particularly musicals. This area of Manhattan is often called the Theater District or the Great White Way, a nickname originating in the headline "Found on the Great White Way" in the February 3, 1902, edition of the "New York Evening Telegram". The journalistic nickname was inspired by the millions of lights on theater marquees and billboard advertisements that illuminate the area. After becoming the city's de facto red-light district in the 1960s and 1970s (as can be seen in the films "Taxi Driver" and "Midnight Cowboy"), since the late 1980s Times Square has emerged as a family tourist center, in effect being Disneyfied following the company's purchase and renovation of the New Amsterdam Theatre on 42nd Street in 1993.
"The New York Times", from which the Square gets its name, was published at offices at 239 West 43rd Street; the paper stopped printing papers there on June 15, 2007.
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Upper West Side.
At the southwest corner of Central Park, Broadway crosses Eighth Avenue (called Central Park West north of 59th Street) at West 59th Street and Columbus Circle; on the site of the former New York Coliseum convention center is the new shopping center at the foot of the Time Warner Center, headquarters of Time Warner. From Columbus Circle northward, Broadway becomes a wide boulevard to 169th Street; it retains landscaped center islands that separate northbound from southbound traffic. The medians are a vestige of the central mall of "The Boulevard" that had become the spine of the Upper West Side, and many of these contain public seating.
Broadway intersects with Columbus Avenue (known as Ninth Avenue south of West 59th Street) at West 65th and 66th Streets where the Juilliard School and Lincoln Center, both well-known performing arts landmarks, as well as the Manhattan New York Temple of the Church of Jesus Christ of Latter-day Saints are located.
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The original brick and stone shelter leading to the entrance of the 72nd Street subway station, one of the first 28 subway stations in Manhattan, remains located on one of the wide islands in the center of Broadway, on the south side of West 72nd Street. For many years, all traffic on Broadway flowed on either side of this median and its subway entrance, and its uptown lanes went past it along the western edge of triangular Verdi Square. In 2001 and 2002, renovation of the historic 72nd Street station and the addition of a second subway control house and passenger shelter on an adjacent center median just north of 72nd Street, across from the original building, resulted in the creation of a public plaza with stone pavers and extensive seating, connecting the newer building with Verdi Square, and making it necessary to divert northbound traffic to Amsterdam Avenue for one block. While Broadway's southbound lanes at this intersection were unaffected by the new construction, its northbound lanes are no longer contiguous at this intersection. Drivers can either continue along Amsterdam Avenue to head uptown or turn left on West 73rd Street to resume traveling on Broadway.
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Several notable apartment buildings are in close proximity to this intersection, including The Ansonia, its ornate architecture dominating the cityscape here. After the Ansonia first opened as a hotel, live seals were kept in indoor fountains inside its lobby. Later, it was home to the infamous Plato's Retreat nightclub. Immediately north of Verdi Square is the Apple Bank Building, formerly the Central Savings Bank, which was built in 1926 and designed to resemble the Federal Reserve Bank of New York. Broadway is also home to the Beacon Theatre at West 74th Street, designated a national landmark in 1979 and still in operation as a concert venue after its establishment in 1929 as a vaudeville and music hall, and "sister" venue to Radio City Music Hall.
At its intersection with West 78th Street, Broadway shifts direction and continues directly uptown and aligned approximately with the Commissioners' grid. Past the bend are the historic Apthorp apartment building, built in 1908, and the First Baptist Church in the City of New York, incorporated in New York in 1762, its current building on Broadway erected in 1891. The road heads north and passes historically important apartment houses such as the Belnord, the Astor Court Building, and the Art Nouveau Cornwall.
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At Broadway and 95th Street is Symphony Space, established in 1978 as home to avant-garde and classical music and dance performances in the former Symphony Theatre, which was originally built in 1918 as a premier "music and motion-picture house". At 99th Street, Broadway passes between the controversial skyscrapers of the Ariel East and West.
At 107th Street, Broadway merges with West End Avenue, with the intersection forming Straus Park with its Titanic Memorial by Augustus Lukeman.
Northern Manhattan and the Bronx.
Broadway then passes the campus of Columbia University at 116th Street in Morningside Heights, in part on the tract that housed the Bloomingdale Insane Asylum from 1808 until it moved to Westchester County in 1894. Still in Morningside Heights, Broadway passes the park-like campus of Barnard College. Next, the Gothic quadrangle of Union Theological Seminary, and the brick buildings of the Jewish Theological Seminary of America with their landscaped interior courtyards, face one another across Broadway. On the next block is the Manhattan School of Music.
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Broadway then runs past the Manhattanville campus of Columbia University, and the main campus of CUNY–City College near 135th Street; the Gothic buildings of the original City College campus are out of sight, a block to the east. Also to the east are the brownstones of Hamilton Heights. Hamilton Place is a surviving section of Bloomingdale Road, and originally the address of Alexander Hamilton's house, The Grange, which has been moved.
Broadway achieves a verdant, park-like effect, particularly in the spring, when it runs between the uptown Trinity Church Cemetery and the former Trinity Chapel, now the Church of the Intercession near 155th Street.
NewYork–Presbyterian Hospital lies on Broadway near 166th, 167th, and 168th Streets in Washington Heights. The intersection with St. Nicholas Avenue at 167th Street forms Mitchell Square Park. At 178th Street, US 9 becomes concurrent with Broadway.
Broadway crosses the Harlem River on the Broadway Bridge to Marble Hill. Afterward, it then enters the Bronx, where it is the eastern border of Riverdale and the western border of Van Cortlandt Park. At 253rd Street, NY 9A joins with US 9 and Broadway. (NY 9A splits off Broadway at Ashburton Avenue in Yonkers.)
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Westchester County.
The northwestern corner of the park marks the New York City limit and Broadway enters Westchester County in Yonkers, where it is now known as South Broadway. It trends ever westward, closer to the Hudson River, remaining a busy urban commercial street. In downtown Yonkers, it drops close to the river, becomes North Broadway and 9A leaves via Ashburton Avenue. Broadway climbs to the nearby ridgetop runs parallel to the river and the railroad, a few blocks east of both as it passes St. John's Riverside Hospital. The neighborhoods become more residential and the road gently undulates along the ridgetop. In Yonkers, Broadway passes the historic Philipse Manor house, which dates back to colonial times.
It remains Broadway as it leaves Yonkers for Hastings-on-Hudson, where it splits into separate north and south routes for . The trees become taller and the houses, many separated from the road by stone fences, become larger. Another National Historic Landmark, the John William Draper House, was the site of the first astrophotograph of the Moon.
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In the next village, Dobbs Ferry, Broadway has various views of the Hudson River while passing through the residential section. Broadway passes by the Old Croton Aqueduct and nearby the shopping district of the village. After intersecting with Ashford Avenue, Broadway passes Mercy University, then turns left again at the center of town just past South Presbyterian Church, headed for equally comfortable Ardsley-on-Hudson and Irvington. Villa Lewaro, the home of Madam C. J. Walker, the first African-American millionaire, is along the highway here. At the north end of the village of Irvington, a memorial to writer Washington Irving, after whom the village was renamed, marks the turnoff to his home at Sunnyside. Entering into the southern portion of Tarrytown, Broadway passes by historic Lyndhurst mansion, a massive mansion built along the Hudson River built in the early 1800s.
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Broadway expands to four lanes at the trumpet intersection with NY 117, where it finally ends and U.S. 9 becomes Albany Post Road (and Highland Avenue) at the northern border of Sleepy Hollow, New York.
Nicknamed sections.
Canyon of Heroes.
"Canyon of Heroes" is occasionally used to refer to the section of lower Broadway in the Financial District that is the location of the city's ticker-tape parades. The traditional route of the parade is northward from Bowling Green to City Hall Park. Most of the route is lined with tall office buildings along both sides, affording a view of the parade for thousands of office workers who create the snowstorm-like jettison of shredded paper products that characterize the parade.
While typical sports championship parades have been showered with some 50 tons of confetti and shredded paper, the V-J Day parade on August 14–15, 1945 – marking the end of World War II – was covered with 5,438 tons of paper, based on estimates provided by the New York City Department of Sanitation.
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More than 200 black granite strips embedded in the sidewalks along the Canyon of Heroes list honorees of past ticker-tape parades.
Great White Way.
"The Great White Way" is a nickname for a section of Broadway in Midtown Manhattan, specifically the portion that encompasses the Theater District, between 42nd and 53rd Streets, and encompassing Times Square.
In 1880, a stretch of Broadway between Union Square and Madison Square was illuminated by Brush arc lamps, making it among the first electrically lighted streets in the United States. By the 1890s, the portion from 23rd Street to 34th Street was so brightly illuminated by electrical advertising signs, that people began calling it "The Great White Way". When the theater district moved uptown, the name was transferred to the Times Square area.
The phrase "Great White Way" has been attributed to Shep Friedman, columnist for the "New York Morning Telegraph" in 1901, who lifted the term from the title of a book about the Arctic by Albert Paine. The headline "Found on the Great White Way" appeared in the February 3, 1902, edition of the "New York Evening Telegram".
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A portrait of Broadway in the early part of the 20th century and "The Great White Way" late at night appeared in "Artist In Manhattan" (1940) written by the artist-historian Jerome Myers:
Transportation.
From south to north, Broadway at one point or another runs over or under various New York City Subway lines, including the IRT Lexington Avenue Line, the BMT Broadway Line, IRT Broadway–Seventh Avenue Line, and IND Eighth Avenue Line (the IND Sixth Avenue Line is the only north–south trunk line in Manhattan that does not run along Broadway).
Early street railways on Broadway included the Broadway and Seventh Avenue Railroad's Broadway and University Place Line (1864?) between Union Square (14th Street) and Times Square (42nd Street), the Ninth Avenue Railroad's Ninth and Amsterdam Avenues Line (1884) between 65th Street and 71st Street, the Forty-second Street, Manhattanville and St. Nicholas Avenue Railway's Broadway Branch Line (1885?) between Times Square and 125th Street, and the Kingsbridge Railway's Kingsbridge Line north of 169th Street. The Broadway Surface Railroad's Broadway Line, a cable car line, opened on lower Broadway (below Times Square) in 1893, and soon became the core of the Metropolitan Street Railway, with two cable branches: the Broadway and Lexington Avenue Line and Broadway and Columbus Avenue Line.
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These streetcar lines were replaced with bus routes in the 1930s and 1940s. Before Broadway became one-way, the main bus routes along it were the New York City Omnibus Company's (NYCO) 6 (Broadway below Times Square), 7 (Broadway and Columbus Avenue), and 11 (Ninth and Amsterdam Avenues), and the Surface Transportation Corporation's M100 (Kingsbridge) and M104 (Broadway Branch). Additionally, the Fifth Avenue Coach Company's (FACCo) 4 and 5 used Broadway from 135th Street north to Washington Heights, and their 5 and 6 used Broadway between 57th Street and 72nd Street. With the implementation of one-way traffic, the northbound 6 and 7 were moved to Sixth Avenue.
, Broadway is served by:
Other routes that use part of Broadway include:
Express service is provided by the between Dyckman Street in Manhattan and West 230th Street in the Bronx, and the between Van Cortlandt Park South in the Bronx and Main Street in Yonkers, using South Broadway to terminate.
Bee-Line buses also serve Broadway within Riverdale and Westchester County. Routes 1, 2, 3, 4, 6, 13, and several others run on a portion of Broadway.
Notable buildings.
Broadway is lined with many famous and otherwise noted and historic buildings, such as:
Historic buildings on Broadway that are now demolished include:
References.
Notes
Citations
Bibliography |
Bilinear transform
The bilinear transform (also known as Tustin's method, after Arnold Tustin) is used in digital signal processing and discrete-time control theory to transform continuous-time system representations to discrete-time and vice versa.
The bilinear transform is a special case of a conformal mapping (namely, a Möbius transformation), often used for converting a transfer function formula_1 of a linear, time-invariant (LTI) filter in the continuous-time domain (often named an analog filter) to a transfer function formula_2 of a linear, shift-invariant filter in the discrete-time domain (often named a digital filter although there are analog filters constructed with switched capacitors that are discrete-time filters). It maps positions on the formula_3 axis, formula_4, in the s-plane to the unit circle, formula_5, in the z-plane. Other bilinear transforms can be used for warping the frequency response of any discrete-time linear system (for example to approximate the non-linear frequency resolution of the human auditory system) and are implementable in the discrete domain by replacing a system's unit delays formula_6 with first order all-pass filters.
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The transform preserves stability and maps every point of the frequency response of the continuous-time filter, formula_7 to a corresponding point in the frequency response of the discrete-time filter, formula_8 although to a somewhat different frequency, as shown in the Frequency warping section below. This means that for every feature that one sees in the frequency response of the analog filter, there is a corresponding feature, with identical gain and phase shift, in the frequency response of the digital filter but, perhaps, at a somewhat different frequency. The change in frequency is barely noticeable at low frequencies but is quite evident at frequencies close to the Nyquist frequency.
Discrete-time approximation.
The bilinear transform is a first-order Padé approximant of the natural logarithm function that is an exact mapping of the "z"-plane to the "s"-plane. When the Laplace transform is performed on a discrete-time signal (with each element of the discrete-time sequence attached to a correspondingly delayed unit impulse), the result is precisely the Z transform of the discrete-time sequence with the substitution of
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where formula_10 is the numerical integration step size of the trapezoidal rule used in the bilinear transform derivation; or, in other words, the sampling period. The above bilinear approximation can be solved for formula_11 or a similar approximation for formula_12 can be performed.
The inverse of this mapping (and its first-order bilinear approximation) is
The bilinear transform essentially uses this first order approximation and substitutes into the continuous-time transfer function, formula_1
That is
Stability and minimum-phase property preserved.
A continuous-time causal filter is stable if the poles of its transfer function fall in the left half of the complex s-plane. A discrete-time causal filter is stable if the poles of its transfer function fall inside the unit circle in the complex z-plane. The bilinear transform maps the left half of the complex s-plane to the interior of the unit circle in the z-plane. Thus, filters designed in the continuous-time domain that are stable are converted to filters in the discrete-time domain that preserve that stability.
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Likewise, a continuous-time filter is minimum-phase if the zeros of its transfer function fall in the left half of the complex s-plane. A discrete-time filter is minimum-phase if the zeros of its transfer function fall inside the unit circle in the complex z-plane. Then the same mapping property assures that continuous-time filters that are minimum-phase are converted to discrete-time filters that preserve that property of being minimum-phase.
Transformation of a General LTI System.
A general LTI system has the transfer function
formula_17
The order of the transfer function is the greater of and (in practice this is most likely as the transfer function must be proper for the system to be stable). Applying the bilinear transform
formula_18
where is defined as either or otherwise if using frequency warping, gives
formula_19
Multiplying the numerator and denominator by the largest power of present, , gives
formula_20
It can be seen here that after the transformation, the degree of the numerator and denominator are both .
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Consider then the pole-zero form of the continuous-time transfer function
formula_21
The roots of the numerator and denominator polynomials, and , are the zeros and poles of the system. The bilinear transform is a one-to-one mapping, hence these can be transformed to the z-domain using
formula_22
yielding some of the discretized transfer function's zeros and poles and
formula_23
As described above, the degree of the numerator and denominator are now both , in other words there is now an equal number of zeros and poles. The multiplication by means the additional zeros or poles are
formula_24
Given the full set of zeros and poles, the z-domain transfer function is then
formula_25
Example.
As an example take a simple low-pass RC filter. This continuous-time filter has a transfer function
If we wish to implement this filter as a digital filter, we can apply the bilinear transform by substituting for formula_27 the formula above; after some reworking, we get the following filter representation:
The coefficients of the denominator are the 'feed-backward' coefficients and the coefficients of the numerator are the 'feed-forward' coefficients used for implementing a real-time digital filter.
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Transformation for a general first-order continuous-time filter.
It is possible to relate the coefficients of a continuous-time, analog filter with those of a similar discrete-time digital filter created through the bilinear transform process. Transforming a general, first-order continuous-time filter with the given transfer function
using the bilinear transform (without prewarping any frequency specification) requires the substitution of
where
However, if the frequency warping compensation as described below is used in the bilinear transform, so that both analog and digital filter gain and phase agree at frequency formula_31, then
This results in a discrete-time digital filter with coefficients expressed in terms of the coefficients of the original continuous time filter:
Normally the constant term in the denominator must be normalized to 1 before deriving the corresponding difference equation. This results in
The difference equation (using the Direct form I) is
General second-order biquad transformation.
A similar process can be used for a general second-order filter with the given transfer function
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This results in a discrete-time digital biquad filter with coefficients expressed in terms of the coefficients of the original continuous time filter:
Again, the constant term in the denominator is generally normalized to 1 before deriving the corresponding difference equation. This results in
The difference equation (using the Direct form I) is
Frequency warping.
To determine the frequency response of a continuous-time filter, the transfer function formula_1 is evaluated at formula_41 which is on the formula_3 axis. Likewise, to determine the frequency response of a discrete-time filter, the transfer function formula_43 is evaluated at formula_44 which is on the unit circle, formula_5. The bilinear transform maps the formula_3 axis of the "s"-plane (which is the domain of formula_1) to the unit circle of the "z"-plane, formula_5 (which is the domain of formula_43), but it is not the same mapping formula_50 which also maps the formula_3 axis to the unit circle. When the actual frequency of formula_52 is input to the discrete-time filter designed by use of the bilinear transform, then it is desired to know at what frequency, formula_53, for the continuous-time filter that this formula_52 is mapped to.
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This shows that every point on the unit circle in the discrete-time filter z-plane, formula_56 is mapped to a point on the formula_57 axis on the continuous-time filter s-plane, formula_58. That is, the discrete-time to continuous-time frequency mapping of the bilinear transform is
and the inverse mapping is
The discrete-time filter behaves at frequency formula_61 the same way that the continuous-time filter behaves at frequency formula_62. Specifically, the gain and phase shift that the discrete-time filter has at frequency formula_61 is the same gain and phase shift that the continuous-time filter has at frequency formula_64. This means that every feature, every "bump" that is visible in the frequency response of the continuous-time filter is also visible in the discrete-time filter, but at a different frequency. For low frequencies (that is, when formula_65 or formula_66), then the features are mapped to a "slightly" different frequency; formula_67.
One can see that the entire continuous frequency range
is mapped onto the fundamental frequency interval
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The continuous-time filter frequency formula_70 corresponds to the discrete-time filter frequency formula_71 and the continuous-time filter frequency formula_72 correspond to the discrete-time filter frequency formula_73
One can also see that there is a nonlinear relationship between formula_53 and formula_75 This effect of the bilinear transform is called frequency warping. The continuous-time filter can be designed to compensate for this frequency warping by setting formula_59 for every frequency specification that the designer has control over (such as corner frequency or center frequency). This is called pre-warping the filter design.
It is possible, however, to compensate for the frequency warping by pre-warping a frequency specification formula_77 (usually a resonant frequency or the frequency of the most significant feature of the frequency response) of the continuous-time system. These pre-warped specifications may then be used in the bilinear transform to obtain the desired discrete-time system. When designing a digital filter as an approximation of a continuous time filter, the frequency response (both amplitude and phase) of the digital filter can be made to match the frequency response of the continuous filter at a specified frequency formula_77, as well as matching at DC, if the following transform is substituted into the continuous filter transfer function. This is a modified version of Tustin's transform shown above.
However, note that this transform becomes the original transform
as formula_81.
The main advantage of the warping phenomenon is the absence of aliasing distortion of the frequency response characteristic, such as observed with Impulse invariance. |
Brian Boitano
Brian Anthony Boitano (born October 22, 1963) is an American figure skater from Sunnyvale, California. He is the 1988 Olympic champion, the 1986 and 1988 World Champion, and the 1985–1988 U.S. National Champion.
Boitano turned professional following the 1988 season. Under new rules by the ISU, he returned to competition in 1993 and competed at the 1994 Winter Olympics, where he placed sixth. In 1996, he was inducted into the World Figure Skating Hall of Fame and the United States Figure Skating Hall of Fame.
Early life.
Brian Boitano was born in 1963 and raised in Mountain View, California. Boitano is a graduate of Marian A. Peterson High School in Sunnyvale, California. He is of Italian American descent, with family from northern Italy. As an adult, he has lived in San Francisco.
Figure skating career.
Early career.
Beginning skating as a child, Brian Boitano won a gold medal at the Junior U.S. Championships in 1978 and first made his mark on the international scene when he won the bronze medal at the 1978 World Junior Figure Skating Championships, beating future rival Brian Orser for that medal.
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Early in his career, Boitano was known primarily for his jumping. He, along with several other skaters, helped push the technical envelope of men's skating. In 1982, Boitano became the first American to land a triple Axel. In 1987, he introduced his signature jump, the 'Boitano triple Lutz', in which the skater raises his left arm above his head. He attempted a quadruple jump throughout the 1986–87 season and at the 1988 World Figure Skating Championships, but did not cleanly land the jump; he double-footed the landing on two occasions.
At the 1983 World Championships, he became the first skater to ever land all six triple jumps in competition. He would eventually include and successfully land eight triple jumps in his free skate program, the maximum number possible (see Zayak rule). He would jump two flip jumps and two triple Axels to compete with his rival, Brian Orser, who jumped one triple flip and one triple Axel. It was not until failing to defend his World title in 1987 that Boitano focused specifically on improving his artistry. Toward this end, he worked with renowned choreographer Sandra Bezic.
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Boitano placed second at the 1984 United States Figure Skating Championships, earning a place in the 1984 Winter Olympics. He placed 5th at the Olympics, setting the stage for his success over the next four years.
World Champion.
Following the 1984 Olympics, several skaters emerged as likely medal hopes following the retirement of Scott Hamilton.
Boitano won the 1985 United States Figure Skating Championships, the first of his four titles. At the first World Championships of the post-Hamilton era in 1985, Alexander Fadeev won, with Brian Orser finishing in second place and Boitano in third place. He had injured tendons in his right ankle a few weeks before the 1986 U.S. Championships but went on to win his second national title. At the 1986 World Championships, Boitano took the title, while Fadeev had a disastrous free skate despite having been in an excellent position to win; Orser finished in second place once again.
During the 1986–87 season, Boitano had introduced three new elements to his programs: the 'Tano triple lutz and a quadruple toe loop, as well as wearing a blindfold, although he never succeeded in landing a clean quadruple jump in competition. The 1987 World Championships were held in Cincinnati, giving the defending world champion a home-field advantage. The outcome of the event would set the tone for the 1988 Olympics. He fell on his quadruple toe loop attempt and placed second.
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After losing the world title to Orser at home, Boitano and his coach Linda Leaver decided that some changes needed to be made if he was to become the Olympic champion. He had always been good at the technical requirements ("The first mark"), but he was weak on the artistic ("the second mark"). He was a self-described "jumping robot." In order to help his growth as an artist, he hired choreographer Sandra Bezic to choreograph his programs for the 1987–1988 Olympic season.
Bezic choreographed two programs that featured clean lines and accentuated the skating abilities of the 5' 11" Boitano. The short program was based on Giacomo Meyerbeer's ballet "Les Patineurs", in which he plays a cocky young man showing off his tricks, using movements dating to the 19th century. In one moment, he wipes ice shavings, also called snow, off his skate blade and tosses it over his shoulder after landing a triple Axel combination. The free skating program was based on the film score, "Napoleon", detailing various phases of a soldier's life.
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Boitano debuted his new programs at 1987 Skate Canada, held in the Saddledome in Calgary, Alberta, Canada. This was where he would compete against Brian Orser for the Olympic title three months later. His new programs were received with standing ovations by the audience. Although Orser won the competition, Boitano skated clean, landing seven triple jumps, including a footwork section into a jump, but popped his planned second triple Axel. The team was so confident about the strength of his new programs that they omitted the quadruple toe loop which, if landed, could have put him a shoulder above Orser in technical merit.
The short program at the 1988 United States Figure Skating Championships proved to be a highlight. Boitano received marks of 6.0 from eight of the nine judges for presentation, the second mark. His free skate was flawed. Due to delays, he did not skate until after midnight. Still, he won the competition, and went into the Olympics as the national champion (U.S.), as did Orser (representing Canada).
1988 Olympics: Battle of the Brians.
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Going into the Olympics, Boitano and Brian Orser each had won a world title and each had an excellent, balanced repertoire. Boitano was known as the slightly better technician and Orser as the better artist.
Adding to the rivalry, Boitano and Orser were both performing military-themed programs. Boitano's free skate was set to music from "", the television miniseries. For his free skate, Boitano wore a blue stretch suit with red braids and epaulets, and used military gestures and postures as much as his music allowed.
The Battle of the Brians at the 1988 Winter Olympics was the highlight of Boitano's amateur career. Boitano and Orser were effectively tied going into the free skating portion of the event and whoever won that portion would win the event. Alexander Fadeev had won the compulsory figures section of the competition, with Boitano second and Orser third. In the short program, Orser placed first and Boitano second. The free skating was, at the time, worth 50% of the score, and so Boitano's lead would not be enough to hold him in first place if he lost the free skate.
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Boitano skated a clean, technically excellent long program, with eight triple jumps, including two axels, and a triple flip-triple toe loop combination. Landing his second triple axel jump cleanly was probably a critical factor in the battle. Orser made one small mistake on a jump and omitted his planned second triple axel. Boitano won the battle in a 5–4 split. It was later discovered that the Canadian Figure Skating Association had engaged in "vote trading" with several countries on the judging panel, particularly East Germany and the USSR. This ultimately backfired, as the Soviet judge refused to follow this agreement and voting "with his conscience," placing Boitano first. Had he followed his federation's directive, Boitano would have lost the gold medal. The judge was promptly suspended by his federation. Experts questioned why the scores were so close between the two skaters because Boitano had two triple axels, two triple flips and a triple triple combination, elements that were not included in Orser's program.
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With his win, Boitano became the first Olympic champion to land the full complement of six types of triple jumps. Boitano won the gold medal, wearing skates with American flag appliqués. These are now part of the collections of the National Museum of American History at the Smithsonian Institution.
Following the Olympics, both Orser and Boitano went to the 1988 World Championships, which Boitano won. Boitano turned professional soon after.
Professional career and return to amateur standing.
Following the Olympics, Boitano went on to dominate competitions in the professional ranks, winning ten straight professional competitions, including five consecutive World Professional Championship titles and four consecutive wins at the Challenge of Champions. Boitano also appeared in "Carmen on Ice", for which he won an Emmy. He performed with Champions on Ice for many years. He wanted to return to amateur competition and make another run at the Olympics.
In June 1993, the International Skating Union (ISU) introduced a clause, commonly known as the "Boitano rule," which allowed professionals to reinstate as "amateur" or "eligible" skaters. Many others joined Boitano, including Ukrainian Viktor Petrenko, 1988 bronze medalist and 1992 gold medalist. The ISU decision was the result of Boitano's active involvement during the early 1990s, when the International Olympic Committee lifted the remaining limits on athletes' remuneration. Previously, the committee had been accused of rejecting Western professionals, while allowing Eastern Bloc state-sponsored "amateurs" to compete. Boitano reinstated as an amateur to compete in the 1994 Winter Olympics in Lillehammer, Norway.
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Boitano competed at the 1994 United States Figure Skating Championships, led after the short program, but lost to Scott Davis in the long program in a 6–3 split decision. Boitano was named to the Olympic team. Going into the Olympics as a medal favorite in a strong field, Boitano missed his triple Axel combination during the short program for the first time in his career. This mistake proved extremely costly, and knocked Boitano out of medal contention. He skated a good long program and finished 6th.
Boitano returned to the professional ranks afterward. In 1996 he was inducted into the World Figure Skating Hall of Fame and the United States Figure Skating Hall of Fame.
Personal life.
In December 2013, Boitano was named to the United States delegation to the 2014 Winter Olympics in Sochi, Russia. In conjunction with that appointment, Boitano publicly came out as gay.
The Sochi games and Russia were the targets of criticism and LGBT activism because of a Russian anti-gay "propaganda" law passed in June 2013. In January 2014, Boitano told the Associated Press that he had never wanted to come out until he was named to the delegation.
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Boitano's older brother, Mark Boitano, is a real estate agent and former politician. He served as a member of the New Mexico Senate from 1997 to 2013.
Celebrity and popular culture career.
"South Park" song.
A caricature of Boitano as a superhero appears as a semi-recurring character in the cartoon series "South Park". The film "" (1999) features a musical number titled "What Would Brian Boitano Do?". He was also featured in "Jesus vs. Santa".
Food Network show.
On August 23, 2009, Food Network debuted a new series entitled "What Would Brian Boitano Make?", which borrows both its name and opening musical theme from the "" song. The show features Boitano preparing meals for his friends. The series was picked up for a ten-episode second season. |
List of political scandals in the United Kingdom
This is a list of political scandals in the United Kingdom in chronological order. Scandals implicating political figures or governments of the UK, often reported in the mass media, have long had repercussions for their popularity. Issues in political scandals have included alleged or proven financial and sexual matters, or various other allegations or actions taken by politicians that led to controversy. In British media and political discourse, such scandals have sometimes been referred to as political sleaze since the 1990s. Notable scandals include the Marconi scandal, Profumo affair and the 2009 expenses scandal. |
Bombardier Inc.
Bombardier Inc. () is a Canadian aerospace manufacturer that produces business jets. Headquartered in Montreal, the company was founded in 1942 by Joseph-Armand Bombardier to market his snowmobiles, and it later became one of the world's biggest producers of aircraft and trains.
During the 1970s and 1980s, the company diversified into public transport vehicles and commercial jets, and it became a multinational corporation. Bombardier grew particularly fast at the end of the 1980s, when the turnover multiplied sixfold within six years. At that time, it was North America's most important producer of railway vehicles, Canada's most important aerospace manufacturer and the worldwide leading snowmobile maker. The growth came mainly from buying failing government-owned companies at a low price and orchestrating a turnaround.
However, the launch of the CSeries aircraft sent Bombardier into deep debt, pushing it to the brink of bankruptcy by 2015. As a result, the company sold nearly all of its operations except business jet manufacturing.
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Bombardier manufactures two families of corporate jets, the Global series and the Challenger series. On May 18, 2021, the Global 7500/8000 series during testing became the first business jet to break the sound barrier and the fastest civil aircraft since the Concorde. With deliveries of 138 business jets in 2023, Bombardier was the number one manufacturer of business jets in the world.
Corporate affairs.
The key trends of Bombardier are (as at the financial year ending December 31):
Divested lines of business.
Commercial aviation.
In 1986, Bombardier acquired Canadair for C$120 million from the Government of Canada after it recorded the largest corporate loss in Canadian history.
In 1989, the company acquired Short Brothers.
By 1990, the first product of the company, the Ski-Doo snowmobile, had become its weakest part gaging up deficits and high inventories.
In 1990, it acquired Learjet. In 1992, the company acquired de Havilland Canada from Boeing.
In 1995, the company founded Flexjet. In December 2013, the division was sold for $195 million.
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On June 29, 2016, Bombardier delivered the first CSeries CS100 aircraft (now called the Airbus A220) to Swiss International Air Lines. Air Canada placed an order for the aircraft one day earlier.
In April 2016, Delta Air Lines placed an order for the aircraft. On September 26, 2017, after Boeing complained that Bombardier was selling the CS100 to Delta Air Lines below cost due to subsidies from the governments of Canada and Quebec, the United States Department of Commerce proposed a 219% tariff on the aircraft. Boeing's complaint stated that the CS100 planes were being sold at US$19.6 million each, below the US$33.2 million production cost. The governments of Canada and the United Kingdom threatened to stop ordering Boeing aircraft since the company was putting aerospace jobs at risk. On January 26, 2018, the United States International Trade Commission overturned the tariffs. Boeing did not appeal.
In July 2018, Airbus acquired a 50.01% stake in the CSeries for one Canadian dollar, with an option to acquire the remaining interest by 2024. Airbus built a second CSeries assembly line at its A320 assembly facility in Mobile, Alabama.
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In November 2018, the company announced the sale of its turboprop passenger aircraft unit to an affiliate of Viking Air. It also announced 5,000 layoffs.
In March 2019, the company sold its Business Aircraft Training business to CAE Inc. for $645 million. The business included flight simulators and training devices for the Bombardier Learjet, Challenger, and Global product lines.
On June 25, 2019, Bombardier agreed with Mitsubishi Heavy Industries to sell the CRJ programme, a deal was expected to close in early 2020 subject to regulatory approval. Bombardier will retain the Mirabel assembly facility and produce the CRJ on behalf of Mitsubishi until the current order backlog is complete.
In October 2019, Bombardier announced the sale agreement of its remaining aerostructure division to US company Spirit AeroSystems. The division at time of sale involved component manufacture for new and after-market Bombardier group and Airbus group aircraft models, and also operated in aircraft maintenance, repair and overhaul. Due to how the 2020 pandemic affected the industry, the agreement was renegotiated with the sale to Spirit concluded finally in October 2020. Bombardier's former aerostructures division purchased by Spirit consisted at time of sale of operations in Belfast, UK; Casablanca, Morocco; and Dallas, USA.
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The 2019 to 2020 aerostructures division sell-off was described at the time as supporting Bombardier's "strategic decision to reposition itself as a pure-play business aircraft company".
In February 2020, Airbus acquired an additional 25% stake in the A220 for US$591 million. This transaction was the final step to get Bombardier Aviation out of the commercial jet industry.
Bombardier Capital.
Bombardier Capital (BC), a subsidiary of Bombardier Inc., was formed during 1973 in Colchester, Vermont.
BC was involved in the secured financing of dealer inventories purchased from manufacturers and distributors of recreational and consumer products, especially Bombardier Recreational Products, in the United States, Canada and Europe. Their clients consisted of Sea-Doo and Ski-Doo dealers, as well as retailers in multiple industries, primarily manufactured housing, recreational boating and specialty and recreational vehicles. BC also provided a wide variety of domestic/international loans, asset management and leasing services for business aircraft and commercial/industrial products, including technology and telecommunication equipment.
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In August 1997 CGI Inc. and BC announced a strategic agreement to offer their clients value-added services. CGI would offer information technology to BC's clients, and BC would provide project financing to CGI's clients.
That same year, BC began transitioning loan origination and servicing to Jacksonville, Florida.
BC ceased loan originations in 2001, then in 2005, BC sold their Inventory Finance Division to GE Commercial Finance before shutting down operations.
Military.
The company acquired the rights to the Volkswagen Iltis in 1981. Production ceased in 1989.
When UTDC was acquired by Bombardier in 1991 several military products were added:
UTDC 24M32 - HLVW military trucks based on the Steyr 91 (Percheron)
In 2003, the company sold its arms industry division in Canada. Military Aviation Services was sold to SPAR Aerospace. Land-based arms industry products made by Urban Transportation Development Corporation ceased operations.
Public transport bus in Ireland.
In the late 1970s, in the Republic of Ireland, CIÉ (now Bus Éireann and Dublin Bus) commissioned a range of single and double-decker buses to be designed and produced.
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CIÉ looked for partners to build these buses in Ireland, eventually finding two: Bombardier, and the United States–based General Automotive Corporation (GAC) from Ann Arbor, Michigan. The two companies formed a new company Bombardier Ireland Limited, 51% owned by Bombardier and 49% owned by GAC. In August 1983, Bombardier sold its shares to GAC, with the company renamed GAC Ireland Limited.
The prototypes were devised in Germany and production of 51 express coaches (KE type) and 366 double-decker buses (KD type) were assembled between 1980 and 1983 at a facility in Shannon, County Clare. They remained in service until 1997 and 2000, respectively. Some surviving examples are now exhibited at the National Transport Museum of Ireland at Howth Castle.
Rail equipment.
The company diversified into rail transport after the 1970s energy crisis reduced demand for snowmobiles.
In 1974, the company received its first order – to build MR-73 trains for Société de transport de Montréal for use on the Montreal Metro.
In 1975, the company acquired Montreal Locomotive Works. It was sold to General Electric in 1988.
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In 1982, the company won a contract from New York's Metropolitan Transportation Authority to build 825 R62A cars for the New York City Subway for $663 million.
In 1985, the company ceased manufacturing locomotives and concentrated on producing passenger train rolling stock. It acquired a 45% stake in La Brugeoise et Nivelles (formerly BN Constructions Ferroviaires et Métalliques) based in Bruges in 1986, the assets of U.S. railcar manufacturers Budd Company and Pullman Company in 1987, and ANF Industrie based in Crespin, Nord, France in 1989. A series of acquisitions in the United Kingdom, Germany, Switzerland, Canada, and Mexico further increased operations.
In 1996, the company was selected as the lead developer for the Acela Express trains, the fastest trains in North America, in a $710 million contract. Problems with the trains resulted in lawsuits between the company and Amtrak.
In 2001, Bombardier acquired Adtranz (DaimlerChrysler Rail Systems), a manufacturer of trains which were widely used throughout Germany and Great Britain, becoming one of the largest manufacturers of railway rolling stock in the world. This division produced the Bombardier Turbostar.
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In 2005, it launched the Bombardier Zefiro high-speed rail, with speeds of 200–380 kilometres per hour, for the Ministry of Railways (China).
On February 13, 2020, Alstom agreed to buy the Bombardier Transportation division for €7 billion. The acquisition deal was completed on January 29, 2021.
Bombardier Recreational Products.
In January 1934, a blizzard prevented Joseph-Armand Bombardier from reaching the nearest hospital in time to save his two-year-old son, Yvon, who died from appendicitis complicated by peritonitis.
Bombardier was a mechanic who dreamed of building a vehicle that could "float on snow". In 1935, in a repair shop in Valcourt, Quebec, he designed and produced the first snowmobile using a drive system he developed that revolutionized travel in snow and swampy conditions.
In 1937, he patented and sold 12 of the 7-passenger "B7" snow coaches. They were used in rural Quebec to take children to school, carry freight, deliver mail, and as ambulances. In 1941, Bombardier opened a factory in Valcourt.
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In 1942, "L'Auto-Neige Bombardier Limitée" ("Bombardier Snow Car Limited") was founded in Valcourt.
During World War II, the Government of Canada issued wartime rationing regulations. Bombardier customers had to prove that snowmobiles were essential to their livelihood in order to buy one. The company then shifted its focus to the arms industry.
In 1947, during a blizzard in Saskatchewan, the company received positive press coverage when army snowmobiles resupplied isolated radio communication towers.
In 1948, the Government of Quebec passed a law requiring all roads to be cleared of snow; Bombardier's sales fell by nearly half in one year. Armand Bombardier therefore decided to diversify his business, first by producing tracked snowplows sized specifically for use on municipal sidewalks, replacing horse-drawn vehicles, then by making all-terrain vehicles for the mining, petroleum, and forestry industries.
The machines had removable front skis that could be replaced with front wheels for use on paved or hard surfaces, thus providing greater utility to his large snowmobiles. In 1951, the wooden bodies were replaced with sheet steel, and these vehicles were powered by Chrysler flathead six-cylinder engines and 3-speed manual transmissions.
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In the early 1950s, Bombardier focused on developing a snowmobile for 1 or 2 passengers. A breakthrough occurred in 1957 when Bombardier developed a one-piece molded rubber continuous track with enough durability to provide snow-gripping traction for lightweight vehicles. The vehicle was called the "Ski-Dog" because it was meant to replace the dog sled for hunters and trappers. However, in 1958, "Ski-Doo" was accidentally painted on the first prototype, and immediately became the popular name.
The public soon discovered the great fun of speedy vehicles zooming over snow, and a new winter sport was born, centered in Quebec. In the first year, Bombardier sold 225 Ski-Doos; four years later, 8,210 were sold. Bombardier slowed promotion of the Ski-Doo line to prevent it from crowding out other company products, while still dominating the snowmobile industry against competitors Polaris Industries and Arctic Cat.
In 1963, Roski was created in Roxton Falls, Quebec as a manufacturer of composite parts for the Ski-Doo. In the 1960s, V-8 engines were added.
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On February 18, 1964, J. Armand Bombardier died of cancer at age 56. Until then, he oversaw all areas of operation and controlled the research department, making all the drawings himself. The younger generation took over, led by Armand's sons and sons-in-law, reorganizing and decentralizing the company. The company adopted computer inventory, accounting, and billing. Distribution networks were improved and increased, and an incentive program was developed for sales staff. That year, a survey was mailed to Ski-Doo owners to find out how the product was being used. Germain Bombardier, who had been groomed by his father, took over the company upon his father's death in 1964. However, he quit and sold his shares in 1966 after a disagreement with other family members. Laurent Beaudoin, the son-in-law of the founder, then became president, a position he held until 1999. He had joined the company as controller in 1963 and was president for 25 years.
In 1967, the company was renamed "Bombardier Limited". By that time, the snowmobiles were very useful for the Inuit.
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In 1968, Clayton Jacobson II invented the jet ski and the company licensed his patents to create the Sea-Doo personal watercraft.
On January 23, 1969, the company became a public company, listing on the Montreal Exchange and the Toronto Stock Exchange.
In 1969 to 1970, the standard round windows reminiscent of portholes were replaced with larger rectangular windows that provided more interior light. A change was made to the Chrysler Industrial 318 engines with the automatic Loadflite transmissions.
In 1970, the company acquired Rotax, an engine manufacturer based in Gunskirchen, Austria.
In 1971, Bombardier acquired Moto-Ski. Also in 1971, Bombardier launched Operation SnoPlan, a program to promote snowmobile safety after a mounting death toll due to snowmobile accidents.
In the 1970s, the company began producing Can-Am motorcycles, which included Rotax engines.
In 2003, the company sold Bombardier Recreational Products to a group of investors: Bain Capital (50%), Bombardier Family (35%) and Caisse de dépôt et placement du Québec (15%) for $875 million. |
Break key
The Break key (or the symbol ⎉) of a computer keyboard refers to breaking a telegraph circuit and originated with 19th century practice. In modern usage, the key has no well-defined purpose, but while this is the case, it can be used by software for miscellaneous tasks, such as to switch between multiple login sessions, to terminate a program, or to interrupt a modem connection.
Because the break function is usually combined with the pause function on one key since the introduction of the IBM Model M 101-key keyboard in 1985, the Break key is also called the Pause key. It can be used to pause some computer games.
History.
A standard telegraph circuit connects all the keys, sounders and batteries in a single series loop. Thus the sounders actuate only when both keys are down (closed, also known as "marking" — after the ink marks made on paper tape by early printing telegraphs). So the receiving operator has to hold their key down or close a built-in shorting switch in order to let the other operator send. As a consequence, the receiving operator could interrupt the sending operator by opening their key, breaking the circuit and forcing it into a "spacing" condition. Both sounders stop responding to the sender's keying, alerting the sender (a physical break in the telegraph line would have the same effect).
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The teleprinter operated in a very similar fashion except that the sending station kept the loop closed (logic 1, or "marking") even during short pauses between characters. Holding down a special "break" key opened the loop, forcing it into a continuous logic 0, or "spacing", condition. When this occurred, the teleprinter mechanisms continually actuated without printing anything, as the all-0s character is the non-printing "NUL" in both Baudot and ASCII. The resulting noise got the sending operator's attention.
This practice carried over to teleprinter use on time-sharing computers. A continuous spacing (logical 0) condition violates the rule that every valid character has to end with one or more logic 1 (marking) "stop" bits. The computer (specifically the UART) recognized this as a special "break" condition and generated an interrupt that typically stopped a running program or forced the operating system to prompt for a login. Although asynchronous serial telegraphy is now rare, the key once used with terminal emulators can still be used by software for similar purposes.
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Sinclair.
On the ZX80 and ZX81 computers, the Break is accessed by pressing . On the ZX Spectrum it is accessed by . The Spectrum+ and later computers have a dedicated key. It does not trigger an interrupt but will halt any running BASIC program, or terminate the loading or saving of data to cassette tape. An interrupted BASIC program can usually be resumed with the codice_1 command. The Sinclair QL computer, without a key, maps the function to .
BBC Micro.
On a BBC Micro computer, the key generates a hardware reset which would normally cause a warm restart of the computer. A cold restart is triggered by pressing . If a filing system is installed, will cause the computer to search for and load or run a file called codice_2 on the filing system's default device (e.g. floppy disk 0, network user BOOT). The latter two behaviours were inherited by the successor to Acorn MOS, RISC OS. These behaviours could be changed or exchanged in software, and were often used in rudimentary anti-piracy techniques.
Because of the BBC Micro's near universal usage in British schools, later versions of the machine incorporated a physical lock on the Break key to stop children from intentionally resetting the computer.
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Modern keyboards.
On many modern PCs, interrupts screen output by BIOS until another key is pressed. This is effective during boot in text mode and in a DOS box in Windows safe mode with 50 lines. On early keyboards without a key (before the introduction of 101/102-key keyboards) the Pause function was assigned to , and the Break function to ; these key-combinations still work with most programs, even on modern PCs with modern keyboards. Pressing the dedicated key on 101/102-key keyboards sends the same scancodes as pressing , then , then releasing them in the reverse order would do; additionally, an E1hex prefix is sent, which enables 101/102-key-aware software to discern the two situations, while older software usually just ignores the prefix. The key is different from all other keys in that it sends no scancodes at all on release in PS/2 modes 1 or 2, so it is impossible to determine whether this key is being held down with older devices. In PS/2 mode 3 or USB HID mode, there is a release scancode, so it is possible to determine whether this key is being held down on modern computers.
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On modern keyboards, the key is usually labeled "Pause" with "Break" below, sometimes separated by a line: , or "Pause" on the top of the keycap and "Break" on the front, or only "Pause" without "Break" at all. In most Windows environments, the key combination brings up the system properties.
Keyboards without Break key.
Compact and notebook keyboards often do not have a dedicated key.
Substitutes for :
Substitutes for :
For some Dell laptops, without a key, press the and select "Interrupt".
Usage for breaking the program's execution.
While both and combination are commonly implemented as a way of breaking the execution of a console application, they are also used for similar effect in integrated development environments. Although these two are often considered interchangeable, compilers and execution environments usually assign different signals to these. Additionally, in some kernels (e.g. miscellaneous DOS variants) is detected only at the time OS tries reading from a keyboard buffer and only if it's the only key sequence in the buffer, while is often translated instantly (e.g. by INT 1Bh under DOS). Because of this, is usually a more effective choice under these operating systems; sensitivity for these two combinations can be enhanced by the codice_3 CONFIG.SYS statement. |
Bogie
A bogie ( ) (or truck in North American English) comprises two or more wheelsets (two wheels on an axle), in a frame, attached under a vehicle by a pivot. Bogies take various forms in various modes of transport. A bogie may remain normally attached (as on many railroad cars and semi-trailers) or be quickly detachable (as for a dolly in a road train or in railway bogie exchange). It may include suspension components within it (as most rail and trucking bogies do), or be solid and in turn be suspended (as are most bogies of tracked vehicles). It may be mounted on a swivel, as traditionally on a railway carriage or locomotive, additionally jointed and sprung (as in the landing gear of an airliner), or held in place by other means (centreless bogies).
Although "bogie" is the preferred spelling and first-listed variant in various dictionaries, bogey and bogy are also used.
Railway.
A "bogie" in the UK, or a "railroad truck", "wheel truck", or simply "truck" in North America, is a structure underneath a railway vehicle (wagon, coach or locomotive) to which axles (hence, wheels) are attached through bearings. In Indian English, "bogie" may also refer to an entire railway carriage. In South Africa, the term "bogie" is often alternatively used to refer to a freight or goods wagon (shortened from "bogie wagon").
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A locomotive with a bogie was built by engineer William Chapman in 1812. It hauled itself along by chains and was not successful, but Chapman built a more successful locomotive with two gear-driven bogies in 1814. The bogie was first used in America for wagons on the Quincy Granite Railroad in 1829. The first successful locomotive with a bogie to guide the locomotive into curves while also supporting the smokebox was built by John B. Jervis in 1831. The concept took decades before it was widely accepted but eventually became a component of the vast majority of mainline locomotive designs. The first use of bogie coaches in Britain was in 1872 by the Festiniog Railway. The first standard gauge British railway to build coaches with bogies, instead of rigidly mounted axles, was the Midland Railway in 1874.
Purpose.
Bogies serve a number of purposes:
Instability can occur when a combination of bogie design, springing, vehicle and bogie wheelbase, and track dynamics, cause the bogie to oscillate at high speed – a phenomenon known as "hunting". If unchecked, derailment can occur. Cars experiencing hunting are removed immediately once the defect is discovered. A tendency for more than one vehicle to hunt will result in investigations with a view to re-designing.
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Usually, two bogies are fitted to each carriage, wagon or locomotive, one at each end. Another configuration is often used in articulated vehicles, which places the bogies (often Jacobs bogies) under the connection between the carriages or wagons.
Most bogies have two axles, but some cars designed for superior riding qualities or heavy loads have more axles per bogie. Heavy-duty cars may have more than two bogies using span bolsters to equalize the load and connect the bogies to the cars.
Usually, the train floor is at a level above the bogies, but the floor of the area between the bogies may be lowered to increase interior space while staying within height restrictions. Examples are container well cars, bi-level passenger cars or stepless-entry, low-floor cars on railways with near-ground-level platforms.
Components.
Key components of a bogie include:
The connections of the bogie with the rail vehicle allow a certain degree of rotational movement around a vertical axis pivot (bolster), with side bearers preventing excessive movement. More modern, bolsterless bogie designs omit these features, instead taking advantage of the sideways movement of the suspension to permit rotational movement.
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Locomotives.
Diesel and electric.
Modern diesel and electric locomotives are mounted on bogies. Those commonly used in North America include Type A, Blomberg, HT-C and Flexicoil trucks.
Steam.
On a steam locomotive, the leading and trailing wheels may be mounted on bogies like Bissel trucks (also known as "pony trucks"). Articulated locomotives (e.g. Fairlie, Garratt or Mallet locomotives) have power bogies similar to those on diesel and electric locomotives.
Rollbock.
A rollbock is a specialized type of bogie that is inserted under the wheels of a rail wagon/car, usually to convert for another track gauge. Transporter wagons carry the same concept to the level of a flatcar specialized to take other cars as its load.
Archbar bogies.
In archbar or diamond frame bogies, the side frames are fabricated rather than cast.
Tramway.
Modern.
Tram bogies are much simpler in design because of their axle load, and the tighter curves found on tramways mean tram bogies almost never have more than two axles. Furthermore, some tramways have steeper gradients and vertical as well as horizontal curves, which means tram bogies often need to pivot on the horizontal axis, as well.
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Some articulated trams have bogies located under articulations, a setup referred to as a Jacobs bogie. Often, low-floor trams are fitted with nonpivoting bogies; many tramway enthusiasts see this as a retrograde step, as it leads to more wear of both track and wheels and also significantly reduces the speed at which a tram can round a curve.
Historic.
In the past, many different types of bogie (truck) have been used under tramcars (e.g. Brill, Peckham, maximum traction). A maximum traction truck has one driving axle with large wheels and one nondriving axle with smaller wheels. The bogie pivot is located off-centre, so more than half the weight rests on the driving axle.
Hybrid systems.
The retractable stadium roof on Toronto's Rogers Centre used modified off-the-shelf train bogies on a circular rail. The system was chosen for its proven reliability.
Rubber-tyred metro trains use a specialised version of railway bogies. Special flanged steel wheels are behind the rubber-tired running wheels, with additional horizontal guide wheels in front of and behind the running wheels, as well. The unusually large flanges on the steel wheels guide the bogie through standard railroad switches, and in addition keep the train from derailing in case the tires deflate.
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Variable gauge axles.
To overcome breaks of gauge some bogies are being fitted with variable gauge axles (VGA) so that they can operate on two different gauges. These include the SUW 2000 system from ZNTK Poznań.
Radial steering truck.
Radial-steering trucks, also known as radial bogies, allow the individual axles to align with curves in addition to the bogie frame as a whole pivoting. For non-radial bogies, the more axles in the assembly, the more difficulty it has negotiating curves, due to wheel flange to rail friction. For radial bogies, the wheel sets actively steer through curves, thus reducing wear at the wheel's flange-to-rail interface and improving adhesion.
In the US, radial steering has been implemented in EMD and GE locomotives. The EMD version, designated HTCR, was made standard equipment for the SD70 series, first sold in 1993. The HTCR in operation had mixed results and relatively high purchase and maintenance costs. EMD subsequently introduced the HTSC truck, essentially the HTCR stripped of radial components. GE introduced their version in 1995 as a buyer option for the AC4400CW and later Evolution Series locomotives. However, it also met with limited acceptance because of its relatively high purchase and maintenance costs, and customers have generally chosen GE Hi-Ad standard trucks for newer and rebuilt locomotives.
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A 19th century configuration of self-steering axles on rolling stock established the principle of radial steering. The Cleminson system involved three axles, each mounted on a frame that had a central pivot; the central axle could slide transversely. The three axles were connected by linkages that kept them parallel on the straight and moved the end ones radially on a curve, so that all three axles were continually at right angles to the rails. The configuration, invented by British engineer John James Davidge Cleminson, was first granted a patent in the UK in 1883. The system was widely used on British narrow-gauge rolling stock, such as on the Isle of Man and Manx Northern Railways. The Holdfast Bay Railway Company in South Australia, which later became the Glenelg Railway Company, purchased Cleminson-configured carriages in 1880 from the American Gilbert & Bush Company for its broad-gauge line.
Articulated bogie.
An articulated bogie (aka Jakob-type) is any one of a number of bogie designs that reduce weight, increase passenger comfort, and allow railway equipment to safely turn sharp corners, while reducing or eliminating the "screeching" normally associated with metal wheels rounding a bend in the rails. There are a number of such designs, and the term is also applied to train sets that incorporate articulation in the vehicle, as opposed to the bogies themselves.
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If one considers a single bogie "up close", it resembles a small rail car with axles at either end. The same effect that causes the bogies to rub against the rails at longer radius causes each of the pairs of wheels to rub on the rails and cause the screeching. Articulated bogies add a second pivot point between the two axles (wheelsets) to allow them to rotate to the correct angle even in these cases.
Articulated lorries (tractor-trailers).
In trucking, a bogie is the subassembly of axles and wheels that supports a semi-trailer, whether permanently attached to the frame (as on a single trailer) or making up the dolly that can be hitched and unhitched as needed when hitching up a second or third semi-trailer (as when pulling doubles or triples).
Tracked vehicles.
Some tanks and other tracked vehicles have bogies as external suspension components (see armoured fighting vehicle suspension). This type of bogie usually has two or more road wheels and some type of sprung suspension to smooth the ride across rough terrain. Bogie suspensions keep much of their components on the outside of the vehicle, saving internal space. Although vulnerable to antitank fire, they can often be repaired or replaced in the field. |
British Steel (1967–1999)
British Steel was a major British steel producer. It originated from the nationalised British Steel Corporation (BSC), formed in 1967, which was privatised as a public limited company, British Steel plc, in 1988. It was once a constituent of the FTSE 100 Index. The company merged with Koninklijke Hoogovens to form Corus Group in 1999.
History.
The Labour Party came to power at the 1945 general election, pledging to bring several industries into state ownership. In 1946, it put the first steel development plan into practice with the aim of increasing capacity. It passed the Iron and Steel Act 1949, which meant nationalisation of the industry, as the government bought out the shareholders, and created the Iron and Steel Corporation of Great Britain. American Marshall Plan aid in 1948–50 reinforced modernisation efforts and provided funding for them. However, the nationalisation was reversed by the Conservative government after 1952.
The industry was re-nationalised in 1967 under another Labour government, becoming British Steel Corporation (BSC). But by then, 20 years of political manipulation had left companies, such as British Steel, with serious problems: a complacency with existing equipment, plants operating below full capacity (hence the low efficiency), poor-quality assets, outdated technology, government price controls, higher coal and oil costs, lack of funds for capital improvement, and increasing competition on the world market.
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By the 1970s, the Labour government's main goal for the declining industry was to keep employment high. Since British Steel was a major employer in depressed regions, it was decided to keep many mills and facilities operating at a loss. In the 1980s, Conservative Prime Minister Margaret Thatcher re-privatised BSC as British Steel. Under private control, the company dramatically cut its workforce and underwent a radical reorganisation and massive capital investment to again become competitive in the world marketplace.
Alasdair M. Blair (1997), Professor of International Relations and Head of the Department of Politics and Public Policy at De Montfort University, has explored the history of British Steel since the Second World War to evaluate the impact of government intervention in a market economy. He suggests that entrepreneurship was lacking in the 1940s; the government could not persuade the industry to upgrade its plants. For generations, the industry had followed a piecemeal growth pattern that proved relatively inefficient in the face of world competition.
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Nationalisation.
BSC was formed from the assets of former private companies which had been nationalised, largely under the Labour government of Harold Wilson, on 28 July 1967. Wilson's was the second attempt at nationalisation; the post-war government of Clement Attlee had created the Iron and Steel Corporation of Great Britain in 1951 taking public ownership of 80 companies but this had been largely reversed by the following Conservative governments of the 1950s with only Britain's largest steel company, Richard Thomas and Baldwins, remaining in public ownership.
BSC was established under the Iron and Steel Act 1967, which vested in the Corporation the shares of the fourteen major UK-based steel companies then in operation, being:
At the time of its formation, BSC comprised around ninety per cent of the UK's steelmaking capacity; it had around 268,500 employees and around 200 wholly or partly-owned subsidiaries based in the United Kingdom, Australia, New Zealand, Canada, Africa, South Asia, and South America.
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Dorman Long, South Durham and Stewarts and Lloyds had merged as British Steel and Tube Ltd before vesting took place. BSC later arranged an exchange deal with Guest, Keen and Nettlefolds Ltd (GKN), the parent company of GKN Steel, under which BSC acquired Dowlais Ironworks at Merthyr Tydfil and GKN took over BSC's Brymbo Steelworks near Wrexham.
Restructuring.
According to Blair (1997), British Steel faced serious problems at the time of its formation, including obsolescent plants; plants operating under capacity and thus at low efficiency; outdated technology; price controls that reduced marketing flexibility; soaring coal and oil costs; lack of capital investment funds; and increasing competition on the world market. By the 1970s, the government adopted a policy of keeping employment high in the declining industry. This especially impacted BSC since it was a major employer in a number of depressed regions.
One of the arguments made in favour of nationalisation was that it would enable steel production to be rationalised. This involved concentrating investment on major integrated plants, placed near the coast for ease of access by sea, and closing older, smaller plants, especially those that had been located inland for proximity to coal supplies.
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From the mid-1970s, British Steel pursued a strategy of concentrating steelmaking in five areas: South Wales, South Yorkshire, Scunthorpe, Teesside and Scotland. This policy continued following the Conservative victory at the 1979 general election. Other traditional steelmaking areas faced cutbacks. Under the Labour government of James Callaghan, a review by Lord Beswick had led to the reprieve of the so-called 'Beswick plants', for social reasons, but subsequent governments were obliged under EU rules to withdraw subsidies. Major changes resulted across Europe, including in the UK:
Privatisation.
The Conservative manifesto for the 1987 general election noted that "British Steel has more than doubled its productivity since 1979 and made a profit last year for the first time in over ten years."
Following Margaret Thatcher's re-election, on 3 December 1987 the Conservative government formally announced in a statement by Kenneth Clarke, Minister of State for Trade and Industry, that it intended to privatise the British Steel Corporation.
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On 5 September 1988 the assets, rights and liabilities of British Steel Corporation were transferred to British Steel plc, registered under the Companies Act as company number 2280000, by the British Steel Act 1988.
The government retained a special share which carried no voting rights but until 31 December 1993, permitted the government to stop any one party controlling more than 15% of the shares.
British Steel employees were given a free allocation of shares, and offered two free shares for each they purchased up to £165, discounted shares up to £2,200, and priority on applying for shares up to £10,000.
Dealing in shares opened on the London Stock Exchange on 5 December 1988.
Post-privatisation.
The privatised company later merged with the Dutch steel producer Koninklijke Hoogovens to form Corus Group on 6 October 1999. Corus itself was taken over in March 2007 by the Indian steel operator Tata Steel.
Chairmen.
Ian MacGregor later became famous for his role as Chairman of the National Coal Board during the UK miners' strike (1984–1985). During the strike the "Battle of Orgreave" took place at British Steel's coking plant.
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Sponsorships.
In 1971 British Steel sponsored Sir Chay Blyth in his record-making non-stop circumnavigation against the winds and currents, known as 'The Impossible Voyage'. In 1992 they sponsored the British Steel Challenge, the first of a series of 'wrong way' races for amateur crews.
British Steel had agreed a sponsorship deal with Middlesbrough Football Club during the 1994–95 season, with a view to British Steel-sponsored Middlesbrough shirts making their appearance the following season. But the sponsorship deal was terminated before it commenced after it was revealed that British steel only made up a tiny fraction of steel used in construction of the stadium, and that the bulk of the steel had been imported from Germany.
In popular culture.
The English rock band XTC mentioned British Steel in their 1979 song Making Plans for Nigel.
The heavy metal band Judas Priest named their 1980 album "British Steel" after the British Steel Corporation. Lead singer Rob Halford explained in an interview that the 'sounds of heavy metal' have been with him since childhood, due to the close proximity of the BSC plant where he grew up. |
BT Group
BT Group plc (formerly British Telecom) is a British multinational telecommunications holding company headquartered in London, England. It has operations in around 180 countries and is the largest provider of fixed-line, broadband and mobile services in the UK, and also provides subscription television and IT services.
BT's origins date back to the founding in 1846 of the Electric Telegraph Company, the world's first public telegraph company, which developed a nationwide communications network. BT Group as it came to be started in 1912, when the General Post Office, a government department, took over the system of the National Telephone Company becoming the monopoly telecoms supplier in the United Kingdom. The Post Office Act of 1969 led to the GPO becoming a public corporation, Post Office Telecommunications. The "British Telecom" brand was introduced in 1980, and became independent of the Post Office in 1981, officially trading under the name. British Telecom was privatised in 1984, becoming "British Telecommunications plc", with some 50 percent of its shares sold to investors. The Government sold its remaining stake in further share sales in 1991 and 1993. BT holds a royal warrant and has a primary listing on the London Stock Exchange, and is a constituent of the FTSE 100 Index.
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BT controls a number of large subsidiaries. Its BT Enterprise division supplies telecoms services to corporate and government customers worldwide, and its BT Consumer division supplies telephony, broadband, and subscription television services in the United Kingdom to around 18 million customers.
History.
Electrical telegraphy.
A number of privately owned electrical telegraph companies operated in the United Kingdom of Great Britain and Ireland from 1846 onwards. Among them were:
General Post Office.
The Telegraph Act 1868 passed the control of all these to the Postal Telegraphs Department of the newly formed General Post Office (GPO). The Telegraph Act 1869 granted the GPO a monopoly over communications.
With the invention of the telephone by Alexander Graham Bell in 1876 the GPO began to provide telephone services from some of its telegraph exchanges. It was confirmed in 1880 that the 1869 Act included telephony even though the telephone had not been invented when the Act was first conceived. In 1882, the Postmaster-General, Henry Fawcett started to issue licences to operate a telephone service to private businesses and the telephone system grew under the GPO in some areas and private ownership in others. The GPO's main competitor, the National Telephone Company (NTC), emerged in this market by absorbing other private telephone companies. It controlled most of telephony in Britain before the 1880 ruling on the Telegraph Act 1869 mandated a nationalised service – which was instated in 1911 prior to the absorption of the NTC into the GPO in 1912.
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The trunk network was unified under GPO control in 1896 and the local distribution network in 1912. A few municipally owned services remained outside of GPO control. These were Kingston upon Hull, Portsmouth and Guernsey. Hull still retains an independent operator, Kingston Communications, though it is no longer municipally controlled.
The assets of the National Telephone Company were acquired by the UK Government to form Post Office Telephones in late 1911. Post Office engineers in the inter-war period had considerable expertise in both telecommunications and hearing assistive devices. Transistors were invented by Bell Telephone Laboratories in the US in 1948, however it was not until the mid-1960s that a transistorised oscillator was introduced to make the calling sound on a telephone in the UK.
Post Office Telecommunications.
In 1969 the GPO, a government department, became the Post Office, a nationalised industry separate from government. Post Office Telecommunications was set up as a division of the Post Office, in October 1969. The Post Office Act 1969 was passed to provide for greater efficiency in post and telephone services; rather than run a range of services, each organisation would be able to focus on their respective service, with dedicated management. By law, the Post Office retained the exclusive right to operate the UK national telecom network, (although since 1914 had licensed Hull City Council to operate its own local telephone network, Kingston Communications).
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The 1970s was a period of great expansion for the Post Office. Most exchanges were modernised and expanded, and many services, such as STD and international dialling were extended. By the early 1970s, subscribers in most cities could dial direct to Western Europe, the US, and Canada; by the end of the decade, most of the world could be dialled direct. The System X digital switching platform was developed, and the first digital exchanges began to be installed. The Post Office also procured their own fleet of vans, based on the Commer FC model.
Post Office Telecommunications researched and implemented data communications using packet switching in the 1970s, resulting in the EPSS, International Packet Switched Service, and Packet Switch Stream.
British Telecom.
In 1979 the Conservatives decided that telecommunications should be fully separated from the Post Office. The "British Telecom" brand was introduced in 1980. On 1 October 1981, this became the official name of Post Office Telecommunications, which became a state-owned corporation independent of the Post Office under the provisions of the British Telecommunications Act 1981. In 1982 BT's monopoly on telecommunications was broken with the granting of a licence to Mercury Communications.
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Privatisation.
On 19 July 1982, the Government announced its intention to sell shares in British Telecom to the public. On 1 April 1984, British Telecommunications was incorporated as a public limited company (plc) in anticipation of the passing of the Telecommunications Bill. This Bill received royal assent on 12 April as the Telecommunications Act 1984, and the transfer to British Telecommunications plc from British Telecom as a statutory corporation of its business, its property, its rights and liabilities took place on 6 August 1984. The remainder of the statutory corporation British Telecom was dissolved in 1994.
Initially all shares in the new plc were owned by the Government. In November 1984, 50.2% of the new company was offered for sale to the public and employees. Shares were listed in London, New York, and Toronto and the first day of trading on was 3 December 1984. The Government sold half its remaining interest in December 1991 and the other half in July 1993. In July 1997, the new Labour Government relinquished its Special Share ("Golden Share"), retained at the time of the flotation, which had effectively given it the power to block a takeover of the company, and to appoint two non-executive directors to the Board.
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The company changed its trading name to "BT" on 2 April 1991. In 1996 Peter Bonfield was appointed CEO and chairman of the executive committee, promising a "rollercoaster ride".
Diversification.
In the early 1980s, BT Merlin was established as a business unit of British Telecom, at first to sell products such as phone systems to small businesses. In 1983, the growing "office automation" market was addressed through Merlin-branded desktop computers made by ICL, with built-in modems to communicate over the phone network. Later products included the Merlin Tonto – developed by ICL from the Sinclair QL home computer – and the Merlin M4000, a rebadged Logica computer.
In the 1990s, BT entered the Irish telecommunications market through a joint venture with the Electricity Supply Board, the Irish state owned power provider. This venture, entitled Ocean, found its main success through the launch of Ireland's first subscription-free dial-up ISP, oceanfree.net. As a telecoms company it found much less success, mainly targeting corporate customers. BT acquired 100% of this venture in 1999.
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