Copyright © Philip M. Parker, INSEAD. Terms of Use.
Definition: Io |
IoNoun1. (Greek mythology) a maiden seduced by Zeus; when Hera was about to discover them together Zeus turned her into a white heifer. 2. The closest of Jupiter's moons; has active volcanoes. Source: WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved. |
Date "Io" was first used in popular English literature: sometime before 1321. (references) |
Etymology: Io \I"o\, noun; plural Ios. [Latin expression; compare to Greek "iw`.]. (references) |
| Domain | Definition |
Computing | Io |
Aerospace | A satellite of Jupiter orbiting at a mean distance of 421,800 kilometers. Also called Jupiter I. (references) |
Source: compiled by the editor from various references; see credits. | |
(From Wikipedia, the free Encyclopedia)
Io or IO may stand for:;Io (mythology): In Greek mythology, Io (pronounced "EYE oh," though "EE oh" is also acceptable) was the daughter of Inachus, a river god. ;Io (moon): moon of Jupiter. ;Io: In Polynesian mythology (including the Maori), the creator god, see Kiho for more information. ;British Indian Ocean Territory: ISO country code
Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "Io."
(From Wikipedia, the free Encyclopedia)
Io 
Discovery Discovered by S. Marius
G. GalileiDiscovered in 1610 Orbital characteristics Mean radius 421,600 km Eccentricity 0.041 Revolution period 1d 18h 27.6m Inclination 0.040° Is a satellite of Jupiter Physical characteristics Equatorial diameter 3632 km Surface area 41,000,000 km2 Mass 8.94×1022 kg Mean density 3.55 g/cm3 Surface gravity 1.81 m/s2 Rotation period 1d 18h 27.6m Axial tilt ° Albedo 0.61 Surface temp
min mean max K 130 K 2000 K Atmospheric characteristics Atmospheric pressure trace kPa Sulfur dioxide % Io is innermost of the four Galilean moons of Jupiter.
Volcanism
Io is most noteworthy for its volcanic nature - it is the most volcanically active body in the Solar System. Unlike volcanoes on Earth, Ionian volcanoes emit sulfur or possibly sulfur dioxide.
The energy for all this activity probably derives from tidal interactions between Io, Europa, Ganymede, and Jupiter. The three moons are locked into Laplace-resonant orbits such that Io orbits twice for each orbit of Europa which in turn orbits twice for each orbit of Ganymede. Though Io always faces the same side toward its planet, the effects of Europa and Ganymede cause it to wobble a bit. This wobbling stretches and bends Io by as much as 100 meters and generates heat through internal friction.
Some of Io's volcanic plumes have been measured rising over 300 km above the surface before falling back, the material being ejected from the surface at approximately one kilometer per second. The volcanic eruptions change rapidly; in just four months between the arrivals of Voyager 1 and Voyager 2 some of them stopped and others started up. The deposits surrounding the vents also changed visibly.
Io also cuts across Jupiter's magnetic field lines, generating an electric current. Though not a large source of energy compared to the tidal heating, this current may carry more than 1 trillion watts with a potential of 400,000 volts. It also strips ionized atoms away from Io at the rate of a thousand kilograms per second which form a torus of intense radiation around Jupiter that glows brightly in the ultraviolet. Particles escaping from this torus are partially responsible for Jupiter's unusually large magnetosphere, their outward pressure inflating it from within. Recent data from the Galileo probe indicate that Io may have its own magnetic field.
The location of Io with respect to the Earth and Jupiter has a strong influence on the Jovian radio emissions as seen from the earth. When Io is visible, radio signals from Jupiter increases considerably.
Physical characteristics
Unlike most of the moons in the outer solar system, Io may be somewhat similar in bulk composition to the terrestrial planets, primarily composed of molten silicate rock. Recent data from the Galileo probe indicates that Io has a core of iron (perhaps mixed with iron sulfide) with a radius of at least 900 km.
When Io was first imaged by Voyager I in 1979, scientists expected to see numerous craters, the density of which across Io's surface would give clues to the moon's age. However, they were surprised to discover that Io's surface is almost completely lacking in craters, due to the tremendous amount of volcanic activity constantly reshaping the landscape. Io's surface is sometimes described as "young" as is the Earth's, even though it is estimated that most bodies in the solar system were created around the same epoch, roughly some 4.3-4.6 billion years ago. In contrast, celestial bodies with heavily cratered features, such as Earth's Moon, are considered to have "old" surfaces.
In addition to volcanoes, Io's surface includes non-volcanic mountains, numerous lakes of molten sulfur, calderas up to several kilometers deep, and extensive flows hundreds of kilometers long of low viscosity fluid (possibly some form of molten sulfur or silicate). Sulfur and its compounds take on a wide range of colors which are responsible for Io's variegated appearance.
Satellite picture of Io taken from the Galileo probe. The picture shows two volcanic eruptions (magnified in the insets). The one on the horizon is 140km high, the other one is 75km high. (Larger Version) Analysis of the Voyager images led scientists to believe that the lava flows on Io's surface were composed mostly of various compounds of molten sulfur. However, subsequent ground-based infrared studies indicate that they are too hot for liquid sulfur; some of the hottest spots on Io may reach temperatures as high as 2000 K (though the average is much lower, about 130 K). One current idea is that Io's lavas are molten silicate rock. Recent Hubble Space Telescope observations indicate that the material may be rich in sodium. There may be a variety of different materials in different locations.
Io has a thin atmosphere composed of sulfur dioxide and perhaps some other gases.
Unlike the other Galilean satellites, Io has little or no water. This is probably because Jupiter was hot enough early in the evolution of the solar system to drive off the volatile elements in the vicinity of Io but not hot enough to do so farther out.
See also
- Darian calendar
- List of mountains on Io
External links
- http://seds.lpl.arizona.edu/nineplanets/nineplanets/io.html
- The Calendars of Jupiter
Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "Io (moon)."
(From Wikipedia, the free Encyclopedia)
In Greek mythology, Io (pronounced "EE oh" though "EYE oh," is also acceptable) was the daughter of Inachus, a river god. One day Zeus noticed her and she quickly became one of his many lovers. Their relationship continued until Zeus' long-suffering wife Hera almost caught them -- a fate avoided by Zeus turning Io into a beautiful white heifer. However, Hera was not completely fooled and demanded Zeus give her the heifer as a present.Once Io was given to Hera, she placed him in the charge of Argus to keep her separated from Zeus. Zeus then commanded Hermes to kill Argus, which he did by lulling all one-hundred eyes to sleep. Hera sent a gadfly to sting Io as she wandered the earth, eventually running into Prometheus, who told her that she would eventually be restored to human form and become the ancestress of a great hero (Heracles). Io escaped across the Ionian Sea to Egypt, where she was transformed back into human form by Zeus. In Egypt Io gave birth to Epaphus.
The term Io fly is derived from the gadfly Hera sent to torment Io into fleeing to Egypt after Argus was slain.
Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "Io (mythology)."
(From Wikipedia, the free Encyclopedia)
The Io programming language is a pure object-oriented language inspired by Smalltalk, Self and NewtonScript.Features:
- Prototype base object model
- Dynamic typing
- Actors for concurrency
- All values are objects
External links
- www.iolanguage.com
Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "Io programming language."
(From Wikipedia, the free Encyclopedia)
List of people by name: A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z Ia - Ib - Ic - Id - Ie-If - Ig - Ih - Ii-Ik - Il - Im - In - Io - Ip-Iq - Ir - Is - It - Iu-Iv - Iw - Ix-Iz
- Ioannou, Susan, Canadian writer
- Ionesco, Eugène, (1912-1994), French dramatist
Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "List of people by name: Io."
| The following table is compiled from various sources, across various languages. When English abbreviations or acronyms come from a non-English source, this is noted. | |||
| Entry | Source | Expression | Field |
IO | Danish | Det Britiske Territorium i Det Indiske Ocean | Geography |
IO | Dutch | Brits Territorium in de Indische Oceaan | Geography |
IO | English | Input-output | Economics, Statistics |
IO | Finnish | Brittiläinen Intian valtameren alue | Geography |
IO | French | Le Territoire britannique de l'Océan Indien | Geography |
IO | German | Britisches Territorium im Indischen Ozean | Geography |
IO | Greek | 'ρετανικό Έδαφος του Ινδικού Ωκεανού | Geography |
IO | Italian | Territorio britannico dell'Oceano Indiano | Geography |
IO | Portuguese | Território Britânico do Oceano Índico | Geography |
IO | Spanish | Territorio Británico del Océano Indico | Geography |
IO | Swedish | Brittiska territoriet i Indiska Oceanen | Geography |
Source: compiled by the editor, based on several corpora (additional references). | |||
| Context | Synonyms within Context (source: adapted from Roget's Thesaurus). |
Boasting | Exult, crow, crow over, neigh, chuckle, triumph; throw up one's cap; talk big, se faire valoir, faire claquer son fouet, take merit to oneself, make a merit of, sing Io triumphe, holloa before one is out of the wood. |
Celebration | Interjection: hail! all hail! io paean, io triumphe! " see the conquering hero comes!". |
Rejoicing | Interjection: hurrah! Huzza! aha! hail! tolderolloll! Heaven be praised! io triumphe! tant mieux! so much the better. |
| Source: adapted from Roget's Thesaurus. | |
Crosswords: Io |
| English words defined with "Io": Argus, Automeris ♦ genus Automeris ♦ Ios ♦ Peacock butterfly. (references) |
| Specialty definitions using "Io": Galilean satellites ♦ Hundred-eyed ♦ I/O ♦ Jupiter I. (references) |
| Etymologies containing "Io": Phoronis. (references) |
| Non-English Usage: "Io" is also a word in the following languages with English translations in parentheses. Dutch (Io), Esperanto (Io), Italian (ego, I, me), Portuguese (British Indian Ocean Territory). |
| Domain | Usage | |
Movie/TV Titles | Frega tu... che frego io! Amico mio (1973) Io credo (1973) La Schiava io ce l'ho e tu no (1972) Il Tuo vizio è una stanza chiusa e solo io ne ho la chiave (1972) | |
Source: compiled by the editor from various references; see credits. | ||
| Domain | Title | ||
Books | |||
Music |
| ||
High Tech |
| ||
Source: compiled by the editor from various references; see credits. | |||
| Thumbnail | Description & Credit | Thumbnail | Description & Credit |
 | Global Image of Io. Credit: NASA. |  | Full Disk Views of Io. Credit: NASA. |
 | While hunting for volcanic plumes on Io, the Hubble telescope captured these images of the ... Credit: NASA. |  | The giant gaseous planet Jupiter and its moon Io are featured in this Hubble telescope ... Credit: NASA. |
 | Close-up image of Io. Credit: NASA. |  | Image of Io centered on the Media Regio area. Credit: NASA. |
 | Images of Io (taken by HST) showing surface feature changes. Credit: NASA. |  | Montage of Jupiter and the Galilean satellites, Io, Europa, Ganymede, and Callisto. Credit: NASA. |
 | Three-color filter image of Jupiter and Io. Credit: NASA. |  | Image of Jupiter and Io taken by the Hubble Space Telescope. Credit: NASA. |
Source: pictures compiled by the editor from various references; see picture credits. | |||
| "Io" is generally used as a noun (proper) -- approximately 94.59% of the time. "Io" is used about 37 times out of a sample of 100 million words spoken or written in English. Its rank is based on over 700,000 words used in the English language. Some parts-of-speech are not covered due to the samples used by the British National Corpus. (note: percents less than one-hundredth of one percent have been omitted) |
| Parts of Speech | Percent | Usage per 100 Million Words | Rank in English |
| Noun (proper) | 94.59% | 35 | 58,339 |
| Noun (singular) | 2.7% | 1 | 339,140 |
| Noun (common) | 2.7% | 1 | 339,140 |
| Total | 100.00% | 37 | N/A |
Source: compiled by the editor from several corpora; see credits.
Expressions using "Io": Automeris io ♦ Hamadryas Io ♦ Hyperchiria Io ♦ Inachis io ♦ Interjection: hail! all hail! io paean ♦ Interjection: hurrah! Huzza! aha! hail! tolderolloll! Heaven be praised! io triumphe! tant mieux! so much the better ♦ io moth ♦ sing Io triumphe. Additional references. | |
| Source: compiled by the editor from various references; see credits. |
| The following statistics estimate the number of searches per day across the major English-language search engines as identified by various trade publications. Hyperlinks lead to commercial use of the expression at Amazon.com. |
| Expression | Frequency per Day | Expression | Frequency per Day |
io | 422 | virtual io | 10 |
cablevision io | 56 | moon io | 9 |
io magic | 55 | io tech | 9 |
cable io | 49 | io jupiter | 8 |
io digital cable | 48 | interactive io | 8 |
data io | 43 | aja io | 8 |
io tv | 39 | io psychology | 8 |
io media player | 32 | digital io logitech pen | 8 |
io logitech | 27 | 20 3 avi io | 8 |
io pen | 16 | io jupiters moon | 7 |
io logitech pen | 15 | access io | 7 |
io moth | 14 | io port | 7 |
digital io | 14 | gh io yu | 7 |
avi io | 13 | ch io lascia pianga | 7 |
pajero io | 13 | ho io non paura | 7 |
gear io | 13 | av io | 6 |
digital io logitech pen personal | 12 | digital io pen | 6 |
io test | 12 | amo che io solo te | 6 |
io sono | 12 | io radio | 6 |
io card | 11 | io monitor statistics unix | 6 |
| Source: compiled by the editor from various references; see credits. | |||
| Language | Translations for "Io"; alternative meanings/domain in parentheses. | |
Dutch | Io (British Indian Ocean Territory). (various references) | |
Esperanto | Io. (various references) | |
Hungarian | Tájékoztató Tiszt (information officer), Tájékoztatási Tiszt (information officer), Szóvivõ Tiszt (information officer). (various references) | |
Japanese Kanji | 接点 (contact, point of contact, single bit IO point, tangent point). (various references) | |
Japanese Katakana | せって" (contact, node, point of contact, single bit IO point, tangent point). (various references) | |
Pig Latin | ioay.(various references) | |
Russian | вход-выход. (various references) | |
| Source: compiled by the editor from various translation references. | ||
| Language | Period | Translations |
| Latin | 500 BCE-Modern | RM:Biro d'integraziun DFAE/DFE. (various references) |
| Source: compiled by the editor from various references. | ||
| Language | Date | Source | John Chapter 8, Verse 40 |
| Greek (transliterated) | 250 BC | Septuagint | Nun de zhteite me apokteinai anqrwpon oV thn alhqeian umin lelalhka hn hkousa para tou qeou touto abraam ouk epoihsen |
| Latin | 405 | Vulgate | Nunc autem quaeritis me interficere hominem qui veritatem vobis locutus sum quam audivi a Deo hoc Abraham non fecit |
| Old English | 990 | West Saxon | Nu ge secheð me to of-sleanne. þannemann þe eow sægde sodfæstnysse; þa þe ichge-hyrde of gode. Ne dyde abraham swa. |
| Middle English | 1395 | Wyclif | But now ye seken to sle `me, a man that haue spoken to you treuthe, that Y herde of God; Abraham dide not this thing. |
| Renaissance English | 1526 | Tyndale | But now ye goo about io kyll me a man that have tolde you the truthe which I have herde of god: this dyd not Abraham. |
| Jacobean English | 1611 | King James | But now ye seek to kill me, a man that hath told you the truth, which I have heard of God: this did not Abraham. |
| Victorian English | 1833 | Webster | But now ye seek to kill me, a man that hath told you the truth, which I have heard from God: this did not Abraham. |
| Basic English | 1964 | Ogden | But now you have a desire to put me to death, a man who has said to you what is true, as I had it from God: Abraham did not do that. |
Source: compiled by the editor from various references; see credits. | |||
| Language | John Chapter 8, Verse 40 |
| Cebuano | Apan karon naninguha kamo sa pagpatay kanako-- sa pagpatay sa tawo nga nagsugilon kaninyo sa kamatuoran nga akong nadungog gikan sa Dios. Wala magbuhat niini si Abraham. |
| Croatian | A eto, tražite da ubijete mene, mene koji sam vam govorio istinu što sam je od Boga èuo. Takvo što Abraham nije uèinio! |
| Danish | Men nu søge I at slå mig ihjel, et Menneske, der har sagt eder Sandheden, som jeg har hørt af Gud; dette gjorde Abraham ikke. |
| Dutch | Maar nu zoekt gij Mij te doden, een Mens, Die u de waarheid gesproken heb, welke Ik van God gehoord heb. Dat deed Abraham niet. |
| Finnish | Mutta nyt te tavoittelette minua tappaaksenne, miestä, joka on puhunut teille totuuden, jonka hän on kuullut Jumalalta. Niin ei Aabraham tehnyt. |
| French | Mais maintenant vous cherchez me faire mourir, moi qui vous ai dit la vérité que j`ai entendue de Dieu. Cela, Abraham ne l`a point fait. |
| German | Nun aber sucht ihr mich zu töten, einen solchen Menschen, der ich euch die Wahrheit gesagt habe, die ich von Gott gehört habe. Das hat Abraham nicht getan. |
| Haitian Creole | Gade koulye a, m'ap di nou verite a jan Bondye te moutre m' li, atousa n'ap chache touye mwen. Abraram pa janm fè bagay konsa. |
| Hungarian | Ámde meg akartok engem ölni, olyan embert, a ki az igazságot beszéltem néktek, a melyet az Istentõl hallottam. Ábrahám ezt nem cselekedte. |
| Indonesian-Bahasa Sehari-hari | Aku menyampaikan kepadamu kebenaran yang Kudengar dari Allah, tetapi kalian mau membunuh Aku. Abraham tidak berbuat seperti itu! |
| Indonesian-Terjemahan Lama | Tetapi sekarang kamu mencari jalan akan membunuh Aku, yaitu seorang yang mengatakan kepadamu barang yang benar, yang Aku dengar daripada Allah; ini tiada diperbuat oleh Ibrahim. |
| Italian | Ora invece cercate di uccidere me, che vi ho detto la verit udita da Dio; questo, Abramo non l'ha fatto. |
| Latvian | Bet jûs tagad tiecaties nonâvçt mani, Cilvçku, kas jums teicu patiesîbu, ko dzirdçju no Dieva. To Âbrahams nedarîja. |
| Maori | Tena ko tenei e whai ana koutou kia whakamatea ahau, te tangata nana i korero te pono ki a koutou, taku hoki i rongo ai ki te Atua: kihai a Aperahama i pena. |
| Norwegian | men nu står I mig efter livet, et menneske som har sagt eder sannheten, som jeg har hørt av Gud; det gjorde ikke Abraham. |
| Portuguese | Mas agora procurais matar-me, a mim que vos falei a verdade que de Deus ouvi; isso Abraão não fez. |
| Rumanian | Dar acum cqutayi sq Mq omorkyi, pe Mine, un om, care v`am spus adevqrul, pe care l-am auzit dela Dumnezeu. Awa ceva Avraam n`a fqcut. |
| Shuar | Nekas ana nuna Yus iniaktursamtai nuna ujakjarme, tuma ain mantuataj tarume. Apraámka Nuní Túrachmiayi. |
| Spanish | Pero ahora procuráis matarme, hombre que os he hablado la verdad que oí de parte de Dios. ¡Esto no lo hizo Abraham! |
| Swahili | Mimi nimewaambieni ukweli niliousikia kwa Mungu; hata hivyo, ninyi mwataka kuniua. Abrahamu hakufanya hivyo! |
| Swedish | Men nu stån I efter att döda mig, en man som har sagt eder sanningen, såsom jag har hört den av Gud. Så handlade icke Abraham. |
| Uma | Kuparata-kokoi tudui' to makono to kutarima ngkai Alata'ala, hiaa' doko' nipatehi lau-ada! Uma hewa po'ingku-ni tetu po'ingku-na Abraham. |
Source: compiled by the editor from various references; see credits. | |
Derivations | |
Words beginning with "Io": iodate, iodated, iodates, iodating, iodation, iodations, iodic, iodid, iodide, iodides, iodids, iodin, iodinate, iodinated, iodinates, iodinating, iodination, iodinations, iodine, iodines, iodins, iodise, iodised, iodises, iodising, iodism, iodisms, iodize, iodized, iodizer, iodizers, iodizes, iodizing, iodoform, iodoforms, iodophor, iodophors, iodopsin, iodopsins, iodous, iolite, iolites, ion, ionic, ionicities, ionicity, ionics, ionise, ionised, ionises, ionising. (additional references) | |
Words ending with "Io": adagio, agio, amnio, arpeggio, audio, bagnio, barrio, bio, bocaccio, braggadocio, brio, capriccio, carpaccio, cheerio, curculio, curio, daimio, danio, fellatio, finochio, folio, fugio, helio, imbroglio, impresario, intaglio, internuncio, latifundio, libecchio, libeccio, lothario, moustachio, mustachio, nuncio, olio, oratorio, pasticcio, patio, pistachio, polio, portfolio, presidio, punctilio, radicchio, radio, ratio, rosolio, scenario, senecio, seraglio, solfeggio. (additional references) | |
Words containing "Io": abbreviation, abbreviations, abdication, abdications, abduction, abductions, aberration, aberrational, aberrations, abiogeneses, abiogenesis, abiogenic, abiogenically, abiogenist, abiogenists, abiological, abioses, abiosis, abiotic, abiotically, abjection, abjections, abjuration, abjurations, ablation, ablations, ablution, ablutionary, ablutions, abnegation, abnegations, abolition, abolitionary, abolitionism, abolitionisms, abolitionist, abolitionists, abolitions, abomination, abominations, abortion, abortionist, abortionists, abortions, abrasion, abrasions, abreaction, abreactions, abrogation, abrogations, abruption. (additional references) | |
| Source: compiled by the editor, based on several corpora (additional references). | |
Scrabble® Enable2K-Verified Anagrams | |
| Words containing the letters "i-o" | |
+1 letter: bio, ion, koi, obi, oil, poi. | |
+2 letters: agio, bios, boil, brio, ciao, cion, coif, coil, coin, coir, coni, dido, diol, doit, fico, fido, filo, fino, foci, foil, foin, giro, icon, idol, ikon, info, inro, into, ions, iota, iron, jiao, join, kilo, kino, kois, lido, limo, lino, lion, loci, loin, loti, milo, miso, modi, moil, momi, naoi, nodi, noil, noir, nori, obia, obis, obit, odic, ohia, oils, oily, oink, olio, omit, otic, oxid, oxim, pion, piso, pois, riot, roil, roti, silo, soil, soli, sori, thio, tiro, toil, toit, topi, tori, trio, vino, viol, void, wino, yogi, yoni, zoic, zori. | |
| Source: compiled by the editor from various references; see credits. SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. | |
| 1. Definition 2. Crosswords 3. Usage: Modern 4. Usage: Commercial | 5. Images: Slideshow 6. Images: Photo Album 7. Usage Frequency 8. Expressions | 9. Expressions: Internet 10. Translations: Modern 11. Translations: Ancient 12. Bible Trace | 13. Abbreviations 14. Acronyms 15. Derivations 16. Anagrams | 17. Bibliography |
Copyright © Philip M. Parker, INSEAD. Terms of Use.
