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Iridium ist ein chemisches Element mit dem Symbol Ir und der Ordnungszahl 77. Es zählt zu den Übergangsmetallen, im Periodensystem steht es in der Gruppe 9 (in der älteren Zählung Teil der 8. Nebengruppe) oder Cobaltgruppe.Das sehr schwere, harte, spröde, silber-weiß glänzende Edelmetall aus der Gruppe der Platinmetalle gilt als das korrosionsbeständigste Element L'iridium naturel est composé de deux isotopes observés stables, 191 Ir (37,3 %) et 193 Ir (62,7 %) [6]. On connaît 37 radioisotopes de l'iridium, avec des nombres de masse allant de 164 à 202 [6].. Le plus stable est 192 Ir avec une demi-vie de 73,827 jours et une énergie moyenne de 380 keV.Il se désintègre en 192 Pt, essentiellement.; Trois autres ont une demi-vie dépassant un jour. Iridium bylo objeveno roku 1803 Smithsonem Tennantem (1761-1815). Ušlechtilý, poměrně tvrdý i když křehký kov , elektricky i tepelně středně dobře vodivý. Je supravodičem 1. typu za teplot pod 0,112 K. V přírodě se vyskytuje téměř pouze jako ryzí kov, převážně v okolí míst dopadu meteoritů , vždy společně s. The Iridium satellite constellation provides L band voice and data information coverage to satellite phones, pagers and integrated transceivers over the entire Earth surface. Iridium Communications owns and operates the constellation, additionally selling equipment and access to its services.It was conceived by Bary Bertiger, Raymond J. Leopold and Ken Peterson in late 1987 (in 1988 protected. Ontdekking. Iridium is in 1803 (gelijktijdig met osmium) ontdekt door de Engelse chemicus Smithson Tennant, toen het als residu achterbleef na het oplossen van platina-erts in koningswater.Tennant gaf het deze naam omdat er vele kleuren zichtbaar waren: Iris is de godin van de regenboog, Iridis betekent in het Latijn van Iris. De meteoriet die zo'n 65 miljoen jaar geleden in Mexico insloeg en.

  1. Iridium (efter Iris; græsk gudinde for regnbuen) er det 77. grundstof i det periodiske system, og har det kemiske symbol Ir: Under normale tryk- og temperaturforhold optræder dette overgangsmetal som et hårdt og skørt sølvskinnende metal med høj massefylde.Iridium udgør sammen med osmium og platin de tunge platinmetaller
  2. Iridium (lat. iridium, sanasta iris, 'sateenkaari') on raskas, hauras valkoinen metalli, jonka kemiallinen merkki on Ir.Iridium on huoneenlämpötilassa lähes yhtä tiheää kuin osmium: ne ovat tiheimpiä metalleja, kumpikin on lähes kaksi kertaa niin tiheää kuin lyijy. Iridium on platinaa muistuttava jalometalli.Se kestää kaikista metalleista parhaiten korroosiota, eikä se liukene.
  3. Iridium är en vit metall med något gulaktig ton i platinafamiljen. Till platinametallerna hör även platina, osmium, palladium, rutenium och rodium.Iridium upptäcktes av engelsmannen Smithson Tennant i resterna efter att råmaterial av platina hade upplösts av kungsvatten.Namnet kommer av latinets iris, regnbåge, vilket syftar på iridiums salter som har starka färger
  4. eraler: osmiridium, hvor halvparten består iridium, og resten består av osmium, platina, ruthenium og rhodium, og iridosmium som består av 55-80% osmium og 20-45% iridium.Iridium finnes ofte i meteoritter
  5. Az Iridium 66 aktív és 6 tartalék műholdból álló távközlési rendszer, amellyel eredetileg az egész világot, tehát a kontinenseket, az óceánokat és a pólusokat is lefedő műholdas telefonszolgáltatást biztosítottak.. A rendszer első műholdját 1998-ban indították.A műholdak alacsony Föld körüli pályán keringenek, 780 km magasan

Iridium — Wikipédia

  1. Iridium è un sistema di satelliti per telecomunicazioni, il cui nome deriva dall'elemento iridio che nella tavola periodica degli elementi è il 77, esattamente pari al numero di satelliti che il progetto prevedeva di mettere in orbita.In realtà, a fine luglio 2018 solo 72 in orbita, di cui 66 operativi (il cui numero nella tavola periodica identifica il disprosio) e 6 di riserva
  2. Iridium is the 77th element on the periodic table.Its symbol is Ir.Ir's atomic number(the amount of protons) is 77. Iridium is a metal.Like other metals in the platinum group, Iridium is a rare and expensive noble metal and is a transition metal.It looks like platinum and is found in asteroids and comets.Iridium deposits are used to identify relative dates of collisions of foreign bodies
  3. Iridium is the chemical element wi seembol Ir an atomic nummer 77. A vera haurd, brickle, siller-white transeetion metal o the platinum faimily, iridium is the seicont-densest element (efter osmium) an is the maist corrosion-resistant metal, even at temperaturs as heich as 2000 °C
  4. Iridium - system 66 (nie licząc zapasowych) sztucznych satelitów telekomunikacyjnych rozmieszczonych na sześciu orbitach okołoziemskich na wysokości 780 km. . System ten pierwotnie miał posiadać 77 satelitów, a ponieważ pierwiastek chemiczny iryd ma liczbę atomową 77, stąd nazwa tego systemu. Logo systemu Iridium przedstawia asteryzm Wielkiego Wozu, najjaśniejszych gwiazd.
  5. utos en dar la vuelta al mundo de polo a polo

Iridium - Wikipedi

Iridium satellite constellation - Wikipedia

Indium ist ein chemisches Element mit dem Symbol In und der Ordnungszahl 49. Im Periodensystem der Elemente steht es in der 5. Periode und ist das vierte Element der 3. Hauptgruppe, der 13. IUPAC-Gruppe, oder Borgruppe.Indium ist ein seltenes, silberweißes und weiches Schwermetall.Seine Häufigkeit in der Erdkruste ist vergleichbar mit der von Silber. . Indium ist für den menschlichen. Iridium ye'l nome d'una constelación de 66 satélites de comunicaciones que xiren alredor de la Tierra en 6 órbites baxes LEO ( Low Earth Orbit ), a un altor averáu de 780 km de la tierra. Caúna de les 6 órbites consta de 11 satélites equidistantes ente sigo. Los satélites tarden 100 minutos en dar la vuelta al mundu de polu a polu Iridium é uma empresa de telefonia por satélite criada na década de 1990 pela fabricante de telefones celulares norte-americana Motorola, que possui um sofisticado sistema de telecomunicações baseado numa grande e complexa constelação formada por aproximadamente 66 satélites que orbitam a Terra em baixas altitudes.O sistema foi projetado e lançado na década de 1990 pela Motorola e. Ontdekking. Iridium is in 1803 (geliektiedig mit osmium) ontdek door de Ingelse chemicus Smithson Tennant, wen 't es residu achterbleef nao 't oplosse van platina erts in keuningswater.. De meteoriet dae zo'n 65 miljoen jaor geleje in Mexico insloog en zo de massa-extinctie van de K-T euvergang veroorzaakte, bevatte 'ne hoge concentratie iridium. Restante daovan waerde aangetroffe es 'n dun.

Iridium je systém 66 aktívnych komunikačných družíc.Umožňuje celosvetové hlasové a dátové prenosy použitím satelitného telefónu.Sieť Iridium je unikátna, pretože pokrýva celú Zem, zahŕňajúc póly, oceány a vzdušné trate.Telefóny pracujú v pásme 1616,0 - 1626,5 MHz Iridium Communications is een Amerikaans bedrijf met een wereldwijd, commercieel systeem voor mobiele communicatie via satellieten. Vanaf de aarde wordt via de satellieten gecommuniceerd door middel van satelliettelefoons of andere geschikte communicatieapparatuur Iridium is 'n chemiese element met die chemiese simbool Ir en 'n atoomgetal van 77. Verwysings [ wysig | wysig bron ] ↑ J. W. Arblaster: Densities of Osmium and Iridium , in: Platinum Metals Review, 1989, 33, 1, S. 14-16; Volltext

Iridium est un système de téléphonie par satellite reposant sur une constellation de satellites circulant sur une orbite terrestre basse.Ce système est conçu au début des années 1990 par des ingénieurs de la société américaine Motorola.Celle-ci crée Iridium en 1991 et lève les fonds permettant la réalisation du réseau terrestre et du segment spatial qui comprend environ 90. Iridium é un sistema de comunicacións por satélite que proporciona servizos de voz e datos por todo o mundo. [1] [2. Características. Os satélites Iridium están distribuídos en planos orbitais de 86,4º de inclinación e 780 km de altura e interconéctanse. Home; Random; Nearby; Log in; Settings; Donate; About Wikipedia; Disclaimer

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The Iridium satellite constellation provides L band voice and data information coverage to satellite phones, pagers and integrated transceivers over the entire Earth surface. Iridium Communications owns and operates the constellation, additionally selling equipment and access to its services.It was originally conceived by Bary Bertiger, Raymond J. Leopold and Ken Peterson in late 1987 (in 1988. Iridium sê siŏh cṳ̄ng gĭng-sṳ̆k, iâ sê siŏh cṳ̄ng huá-hŏk nguòng-só. Nguòng-cṳ̄ sê̤ṳ-só sê 77, huá-hŏk hù-hô̤ sê Ir. Mŭk-liŏ Iridium is the chemical element wi seembol Ir an atomic nummer 77. A vera haurd, brickle, siller-white transeetion metal o the platinum faimily, iridium is the seicont-densest element (efter osmium) an is the maist corrosion-resistant metal, even at temperaturs as heich as 2000 °C.Tho anerly certaint molten sauts an halogens is corrosive tae solit iridium, finely dividit iridium dust is a. Iridium (Symbol Ir) ass e cheemescht Element mat der Uerdnungszuel 77 am Periodesystem vun den Elementer. Seng relativ Atommass ass 192,217. Um Spaweck Commons: Iridium - Biller.

Iridium (element) - Wikipedia

  1. Iridium, Ir, 77 Serie: Uurgongsmetalle: Gruppe, Periode, Blok: 9, 6, d: Uutsjoon: säälwersk wiet Massenandeel an ju Äidhülle: 1 · 10-7 % Atomar Atommasse: 192,217 u: Atomradius (bereekend) 135 (180) pm Kovalenten Radius: 137 pm Van-der-Waals-Radius - pm Elektronekonfiguration 4f 14 5d 7 6s 2
  2. Iridium (-ii, n.) est elementum chemicum metallicum cum numero atomico 77 et symbolo Ir.. Notae. Nexus externi. Hoc elementum apud Patreon: periodic video
  3. Iridium (I-lí-ti-ùm) sī 1 ê hoà-ha̍k goân-sò͘. I ê goân-chú-hoan sī 77, hoà-ha̍k hû-hō sī Ir. Chham-khó [ siu-kái | kái goân-sú-bé

Ontdekking. Iridium is in 1803 (geliektiedig mit osmium) ontdek door de Ingelse chemicus Smithson Tennant, wen 't es residu achterbleef nao 't oplosse van platina erts in keuningswater.. De meteoriet dae zo'n 65 miljoen jaor geleje in Mexico insloog en zo de massa-extinctie van de K-T euvergang veroorzaakte, bevatte 'ne hoge concentratie iridium. Restante daovan waerde aangetroffe es 'n dun. Iridium deposits are used to identify relative dates of collisions of foreign bodies. Iridium can fold and bend just like aluminum, and remains very shiny. Most iridium is found in the Americas, though some is mined in Myanmar, South Africa, and Russia. Iridium melts at 2410 °C, and boils at 4130 °C. It is the most corrosion resistant metal

Panagway silvery white: Kinatibuk-ang mga kinaiya Ngalan, simbolo, kaiphan iridium, Ir, 77 Paglitok / ᵻ ˈ r ɪ d i ə m / [[Help:Pronunciation respelling key|i-Plantilya:Smallcaps all-ee-əm]] Kategoriyang elemento: puthaw nga transisyo Algemian Nööm, Symbool, Numer Iriidium, Ir, 77 Seerie Auergungsmetal: Skööl, Periode, Blook 9, 6, d : Klöör, Skak salwern witj CAS-Numer: 7439-88-5 Uundia

Iridium - Wikipedia, den frie encyklopæd

Iridium (műhold) - Wikipédia

  1. Iridium es un elemento chimic de symbolo Ir e numero atomic 77. Del metallos cognoscite, illo es le plus resistente al corrosion. Vide etiam. Tabella periodic del elementos Iste pagina esseva modificate le plus recentemente le 26 april 2017 a 18:48. Le texto es.
  2. Iridium is the world's only truly global satellite communications company. Offering voice and data connectivity through a constellation of 66 crosslinked LEO satellites, Iridium keeps people - and things - connected on the land, in the air, or at sea
  3. A flare produced by a flyover of the Iridium 84 satellite on November 20, 2006 at 19:06 CST (GMT-6) seen from College Station, Texas, USA. The exposure captures 20 seconds prior to the peak of the flare and 10 seconds after. The streak is about 13.1° long, and the peak magnitude was predicted to be -2
  4. imum bandwidth needed for receivers to properly receive Iridium signals
  5. Iridium, 77 Ir Iridium; Pronunciation / ɪ ˈ r ɪ d i ə m / (ih-RID-ee-əm) Appearance: sillery white: Standard atomic weight A r, std (Ir): 192.217(2) Iridium in the periodic cair

Iridium (satellite) - Wikipedia

(uncountable) A chemical element (symbol Ir) with an atomic number of 77: a very hard, brittle, silvery-white transition metal of the platinum group. 2014, Elizabeth Kolbert, The Sixth Extinction: An Unnatural History, Picador, →ISBN, page 75: Iridium is extremely rare on the surface of the earth but much more common in meteorites.· (countable) A. Ang iridio (Iningles iridium) mao ang elementong kimiko sa talaang peryodiko nga may simbolo nga Ir ug kaiphan nga atomik 77. Ang iridio mao ang puthaw nga transisyon Ibùdó; Ojúewé àrìnnàkò; Ìtòsí; Ìjáwọlé; Àwọn ìtòjọ; Nípa Wikipedia; Ikìlọ Auer Wikipedia; Disclaimers; Schük. Iriidium. Uun en ööder spriak lees; Uun't uug behual; Bewerke (Widjerfeerd faan Iridium) Tekst üüb Öömran

Iridium - Simple English Wikipedia, the free encyclopedi

Iridium is 'n chemiese element met die chemiese simbool Ir en 'n atoomgetal van 77. Verwysings Wysig ↑ J. W. Arblaster: Densities of Osmium and Iridium , in: Platinum Metals Review, 1989, 33, 1, S. 14-16; Volltext Iridium ek element hae, jiske symbol Ir, atomic number 77 aur atomic mass 192.22 hae. Ii vigyan article ek chhota panna hae. Aap iske lamba karke Wikipedia ke madat kare saktaa hae. Last edited on 6 April 2015, at 15:05. Content is available under CC BY-SA 3.0 unless. Decay modes in parentheses are predicted, but have not yet been observe Iridium, 77 Ir ngoi-kôn; silvery white: Kî-pún sin-sit; Miàng, fù-ho iridium, Ir: ngoi-hìn: silvery white: Iridium chhai chû-khì-péu ke vi-ch

Iridium-2.jpg ‎ (610 × 528 pixels, file size: 81 KB, MIME type: image/jpeg) This file is fae Wikimedia Commons n micht be uised bi ither waurks. The descreeption oan its file descreeption page thaur is shawn ablo Iridium satellites are satellites that are used for telephones and other purposes such as navigation.Most of them are in a controlled orbit, so the flares from these satellites can be predicted. Computer programs can be fed the satellite's information and can predict a flare to an observer's location. The iridium satellite is known for having a weird shape This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.: Tu azad î: parve bike - to copy, distribute and transmit the work; to remix - to adapt the work; Under the following conditions: attribution - You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in. Iridium využívá letectví pro zapalovací svíčky motorů. Nejspíš nejznámější předměty, zhotovené ze slitiny iridia a platiny, byly pařížské prototypy kilogramu a metru, etalony hmotnosti a délky, uložené u Mezinárodního úřadu pro míry a váhy v Sèvres Chan eil ach dà iosatòp seasmhach agus nàdarra de dh'iridium, 191 Ir agus 193 Ir. Eachdraidh. Ann an 1803 lorg Smithson Tennant iridium còmhla ri osmium ann an clach-platanum à Ameireaga a Deas. Dh'ainmich e e air a' bhan-dhia Ghreugach.

Iridium - Wikipedia, wolna encyklopedi

Iridium is 'n sjeikundig element mit symbool Ir en atoomnómmer 77. 't is 'n zilverwit euvergangsmetaal. Iridium. Ontdekking. Iridium is in 1803 (geliektiedig mit osmium) ontdek door de Ingelse chemicus Smithson Tennant, wen 't es residu achterbleef nao 't oplosse van platina erts in keuningswater Iridium is an Equal Opportunity Employer. Iridium considers all applicants for employment without regard to race, color, religion, sex, national origin, age, disability, sexual orientation, gender identity or status as a protected veteran in accordance with federal law and other state and local requirements

Calcium - Wikipedia

Iridium - Wikipedia, la enciclopedia libr

iridium, Ir, 77 Paglitok / ᵻ ˈ r ɪ d i ə m / [[Help:Pronunciation respelling key|i-Plantilya:Smallcaps all-ee-əm]] Kategoriyang elemento: puthaw nga transisyon: Group, period, block: 9, 6, d: Gibug-aton sa atomo: 192.217 Kontorno sa elektron 4f 14 5d 7 6s 2 2, 8, 18, 32, 15, Iridiyaam (ingiriis: Iridium) astaanta waa curiye kimiko oo tirada atomkiisu tahay todobaatan-iyo-todoba (77). Curiyaha Iridiyaam waa bir ka tirsan Transitional Metalska ee guruubka 9aad iyo heerka 6aad ee Diwaanka Curiye iyo guruubka d-block.. Curiyahan Iridiyaam waa bir adag, la kala jabin karo, leh midabka naxaasta oo cadaan xiga, oo ka tirsan guruubka Balatiniyaam, kuwaas oo leh astaamo.

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Iridium - Wikipédia, a enciclopédia livr

Iridio - Wikipedia

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