La Grande Muraglia o Grande Parete, più precisamente Grande Muraglia CfA2, è la quarta più grande struttura conosciuta dell'Universo visibile, dopo la Grande muraglia di Ercole, la Grande muraglia Sloan e l'ammasso di quasar Huge-LQG.
Si tratta di un enorme gruppo di galassie posto a circa 200 milioni di anni luce di distanza dalla Via Lattea, lungo 500 milioni di anni luce, largo 300 milioni, ma spesso "solo" 15 milioni di anni luce. Fu scoperta nel 1989 da Margaret Geller e John Huchra basandosi sui dati della CfA Redshift Survey.[1]
In realtà le dimensioni riportate sono quelle minime stimate; non si conosce ancora la reale estensione della Grande Muraglia, poiché la vista è oscurata dalle polveri presenti nel piano della nostra galassia. Fino ad oggi è stato impossibile determinare se la Muraglia termini realmente ove teorizzato o se sia ancora più grande.
L'origine della Grande Muraglia è piuttosto incerta. Le teorie correnti (nate appunto per spiegare l'esistenza di questa e altre muraglie, e dei supervuoti che delimitano) ipotizzano che tali strutture si formino all'interno di filamenti di materia oscura disposti nello spazio secondo una struttura "a spugna", nella quale tali filamenti circondano ampie zone vuote o poco dense. È questa materia oscura che detta la struttura dell'Universo alle scale più grandi, attirando gravitazionalmente le masse visibili.
La Grande Muraglia CfA2 è rimasta a lungo la struttura più grande conosciuta, dal momento della sua scoperta fino al 2003, data della scoperta della Sloan Great Wall, che è tre volte più grande (1,4 miliardi di anni luce).
Jozef Chalmet Standbeeld op het Pierets-De Colvenaerplein te Zelzate ter ere van Jozef Chalmet. Het opschrift luidt: De BSP aan haar voorzitter burgemeester Jozef Chalmet in dankbare hulde. 1897 - 1962 Naam Jozef Alfons Chalmet Geboren Sint-Kruis-Winkel, 11 maart 1897 Overleden Zelzate, 14 september 1962 Kieskring Eeklo Regio Vlaanderen Land België Functie syndicalistPoliticus Partij BWP / BSP Vakbond Syndikale Kommissie Mandaten 1925 - 1962 Volksvertegenwoordiger 1928 - 1937 Bestuurslid …
У Вікіпедії є статті про інші значення цього терміна: Крива Руда. село Крива Руда Країна Україна Область Полтавська область Район Кременчуцький район Громада Градизька селищна громада Код КАТОТТГ UA53020050140090276 Основні дані Населення Площа 0,143 км² Поштовий індекс 39020 Те…
Recogida del ámbar, Studiolo de Francisco I, Palazzo Vecchio, Florencia. Betsabé en el baño, Museo del Hermitage. Giovanni Battista Naldini (Fiesole, 1535-Florencia, 18 de febrero de 1591) fue un pintor italiano del manierismo tardío en Florencia. Biografía Durante su periodo de aprendizaje (1549-1557) estuvo en el estudio de Jacopo da Pontormo, de quien fue el heredero artístico. Marchó a Roma durante unos meses en 1560 y fue llamado a Florencia hacia 1562 para trabajar a las órdenes de…
Town in Telšiai County, LithuaniaGadūnavasTown Coat of armsGadūnavasCoordinates: 56°3′50″N 22°12′40″E / 56.06389°N 22.21111°E / 56.06389; 22.21111Country LithuaniaCountyTelšiai CountyMunicipalityTelšiai district municipalityEldershipGadūnavas eldershipPopulation (2011) • Total98Time zoneUTC+2 (EET) • Summer (DST)UTC+3 (EEST) Gadūnavas (Samogitian: Gadūnavs, Polish: Gadonów) is a town in Telšiai County, Lithuania. Acc…
هذه المقالة يتيمة إذ تصل إليها مقالات أخرى قليلة جدًا. فضلًا، ساعد بإضافة وصلة إليها في مقالات متعلقة بها. (سبتمبر_2013) ديميتر بريسمعلومات عامةالجنسية كندا التأسيس 2006 النوع دار نشر المقر الرئيسي أونتاريو أهم الشخصياتالمؤسس Andrea O'Reilly (en) تعديل - تعديل مصدري - تعديل ويكي بيانات دي…
Mikaela ShiffrinSki alpenMikaela Shiffrin in October 2016DisiplinSlalom, Giant slalom, Super-G, Downhill, CombinedKlubBurke Mountain AcademyLahir13 Maret 1995 (umur 28)[1]Vail, Colorado, Amerika SerikatTinggi5 ft 7 in (170 cm)[2]Debut Piala Dunia11 Maret 2011, (usia 15)Situs webfacebook.comOlympicsTim2 – (2014, 2018)Medali3 (2 gold)World ChampionshipsTim4 – (2013–19)Medali7 (5 gold)World CupMusim9 – (2011–2020)Menang66 – (43 SL, 11 GS, 2 DH, 4 SG, …
Australian actress, presenter and singer (born 1983) Bec Cartwright redirects here. For her album, see Bec Cartwright (album). Bec HewittBornRebecca June Cartwright (1983-07-23) 23 July 1983 (age 40)Sydney, New South Wales, AustraliaOther namesBec CartwrightOccupations Actress presenter singer Years active1988–2006, 2018–presentSpouse Lleyton Hewitt (m. 2005)Children3Musical careerGenres Pop power pop LabelsWarner Music Australia Musical artistWe…
First edition Babylon Revisited and Other Stories is a collection of ten short stories written between 1920 and 1937 by F. Scott Fitzgerald. It was published in 1960 by Charles Scribner's Sons. Selection Babylon Revisited collects ten of F. Scott Fitzgerald's best-known short stories. In an afterword to the 1996 edition, Fitzgerald scholar Matthew Bruccoli describes the period leading up to the selection, F. Scott Fitzgerald died believing himself a failure. The obituaries were condescending, an…
ラジオ番組・中継内での各種情報（終了した番組・中継を含みます）は、CDなどでの販売や公式なアーカイブなど常に参照可能な状態のネット配信、または信頼できる紙媒体またはウェブ媒体が紹介するまで、出典として用いないで下さい。検証可能性に基づき除去される場合があります。 apollostationDrive Discovery PRESS放送期間 2021年4月4日 -放送時間 毎週日曜 12:00 - 12:25放送
Pemandangan depan Katedral Senlis Katedral Senlis (Prancis: Cathédrale Notre-Dame de Senlis) merupakan sebuah gereja Katolik Roma dan bekas katedral yang terletak di Senlis, Oise, Prancis. Bangunan ini adalah bekas kedudukan Keuskupan kuno Senlis, yang ditiadakan sesuai dengan Konkordat 1801, ketika wilayahnya diserahkan pada Keuskupan Beauvais. Katedral ini diklasifikasikan sebagai monumen bersejarah pada daftar pertama 1840;[1] perpustakaan tua diklasifikasikan pada 1929.[2 …
هذه المقالة يتيمة إذ تصل إليها مقالات أخرى قليلة جدًا. فضلًا، ساعد بإضافة وصلة إليها في مقالات متعلقة بها. (ديسمبر 2018) كمال أيدين (بالتركية: Kemal Aydın) معلومات شخصية الميلاد 19 يناير 1934(1934-01-19)أنقرة الوفاة 8 يناير 2019 (عن عمر ناهز 84 عاماً)أنقرة الطول 1.74 م (5 قدم 9&…
1991 Belgian filmToto the HeroVHS artworkDirected byJaco Van Dormael Bénédicte Liénard(assistant director)Written byDidier De NeckPascal LonhayJaco Van DormaelLaurette VankeerberghenProduced byPierre DrouotDany GeysLuciano GloorStarringMichel BouquetJo De BackerMireille PerrierGisela UhlenCinematographyWalther van den EndeEdited bySusana RossbergMusic byPierre van DormaelRelease date 16 May 1991 (1991-05-16) Running time91 minutesCountriesBelgiumFranceGermanyLanguageFrenchBox o…
Peta lokasi republik-republik Asia Tengah Republik-republik Asia Tengah terdiri dari enam negara yang terletak di Asia Tengah yang juga bekas republik-republik Soviet, kecuali Mongolia. Mereka adalah: Afganistan Kazakhstan Kirgiztan Tajikistan Turkmenistan Uzbekistan Republik-republik Asia Tengah kadang-kadang disebut 'Asia Tengah', meski istilah tersebut lebih diperuntukkan bagi kawasan geografis yang lebih besar di dalam benua Asia.
Dinky Dungeons is a role-playing game published by Doc's Games in 1985. Description Dinky Dungeons is the smallest (3 in × 4 in (76 mm × 102 mm)) role-playing game ever produced.[1] The very concise rules cover character creation, classes, skills, spells, combat, experience, monsters, and a two-page introductory mini-scenario.[1] The game includes a GM's screen, a hex map, and a sample character sheet.[1] The game utilized six-sided dice (d…
Annual summit in the United States This article reads like a press release or a news article and may be largely based on routine coverage. Please help improve this article and add independent sources. (April 2017) NOVUS SummitOfficial emblemFrequencyAnnualLocation(s)United Nations General Assembly Hall, New York, New York, U.S.Years active2016, 2017, 2018, 2019, 2020Inaugurated2016FoundersKunal SoodOrganized byUN DESA, Kunal SoodWebsitewww.novussummit.org The NOVUS Summit is an annual summit hel…
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Guatemalan footballer Carlos Valdez Personal informationFull name Carlos Rolando ValdezDate of birth (1945-05-22) 22 May 1945 (age 78)Place of birth Guatemala City, GuatemalaInternational careerYears Team Apps (Gls) Guatemala Carlos Rolando Valdez (born 22 May 1945) is a Guatemalan footballer. He competed in the men's tournament at the 1968 Summer Olympics.[1] References ^ Evans, Hilary; Gjerde, Arild; Heijmans, Jeroen; Mallon, Bill; et al. Carlos Valdez. Olympics at Sports-Ref…
Nahuatl symbol for xōchitl, a flower. Xochitl is one of the most common names adopted by Chicanos after the Chicano Movement.[1][2] Chicano naming practices formed out of the cultural pride that was established in the Chicano Movement.[1][3] This motivated some Chicanos to adopt Indigenous Mexican names, often Aztec (or Nahuatl) in origin, for themselves and their children, rather than Spaniard names,[1] which were first imposed onto Indigenous Mexico in …
American long-distance runner Aliphine TuliamukTuliamuk in 2018Personal informationNationalityKenyan-AmericanBorn (1989-04-05) April 5, 1989 (age 34)Posoy, Pokot County, KenyaHeight1.65 m (5 ft 5 in)SportCountry United StatesSportTrack and field, Road racingEvent(s)10 km, Half marathon, 25 km, MarathonCollege teamWichita State ShockersClubNorthern Arizona EliteTeamHoka One OneTurned pro2013Coached byBen RosarioAchievements and titlesPersonal bests5000 m: 15:18.86 (Palo A…
Japanese mathematician (born 1947) This biography of a living person needs additional citations for verification. Please help by adding reliable sources. Contentious material about living persons that is unsourced or poorly sourced must be removed immediately from the article and its talk page, especially if potentially libelous.Find sources: Masaki Kashiwara – news · newspapers · books · scholar · JSTOR (November 2013) (Learn how and when to remove this …
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