. . . . . . "229"^^ . . "An rada\u00EDocht leictreamaighn\u00E9adach a asta\u00EDonn d\u00FAchorp, b\u00EDonn d\u00E1ileadh minic\u00EDochta (is tonnfhad) inti a bhraitheann ar theocht an d\u00FAchoirp amh\u00E1in. M\u00E1s \u00E9 500 K teocht an dromchla, n\u00EDl ach rada\u00EDocht infridhearg idir na tonnfhaid 1,500 nm is 100,000 nm i gceist, agus \u00ED dofheicthe. Ag teocht 1,000 K, asta\u00EDonn dromchla an d\u00FAchoirp beag\u00E1in\u00EDn d\u00E1 rada\u00EDocht ag na tonnfhaid dhearga sa raon infheicthe, agus b\u00EDonn breo dearg ar an rud. Ag teocht n\u00EDos airde f\u00F3s, tarla\u00EDonn rada\u00EDocht ar feadh an raoin infheicthe, agus deirtear go bhfuil an rud b\u00E1nbhruithneach. Go bun\u00FAsach, \u00E9ir\u00EDonn an asta\u00EDocht rada\u00EDochta seo \u00F3 ghluaiseachta\u00ED na leictreon i ndromchla te. Nuair a th\u00E9itear an t-\u00E1bhar arda\u00EDtear fuinneamh gach leictreoin go dt\u00ED leibh\u00E9al ceadaithe os cionn an bhunleibh\u00E9il. Nuair a chailleann leictreon an ch\u00E9im i"@ga . "Gorputz beltzaren erradiazioa edozein objektu berok igorritako erradiazio elektromagnetikoari deritzo. Gorputz beltz, idealizatutako gorputz opako eta ez islatzaile bati esaten zaio. Uhin-luzeren espektro espezifikoa du, gorputzaren tenperaturaren menpeko intentsitatearekiko alderantzizko proportzionala dena non kalkulu eta teoriagatik uniformea eta konstantea dela suposatzen den.Objektu arrunt askok berez igorritako erradiazio termikoa, gorputz beltzaren erradiazio gisa hurbil daiteke. Oreka termikoan dagoen guztiz isolatutako itxiturak gorputz beltzaren erradiazioa igortzen du eta horman egindako zirrikitu batetik zehar igorriko da, badin eta egindako zuloak orekan eragindako efektua arbuiagarritzat har badaiteke."@eu . "\u0625\u0634\u0639\u0627\u0639 \u0627\u0644\u062C\u0633\u0645 \u0627\u0644\u0623\u0633\u0648\u062F \u0647\u0648 \u0646\u0648\u0639 \u0645\u0646 \u0623\u0646\u0648\u0627\u0639 \u0627\u0644\u0625\u0634\u0639\u0627\u0639 \u0627\u0644\u0643\u0647\u0631\u0648\u0645\u063A\u0646\u0627\u0637\u064A\u0633\u064A \u0645\u0646 \u062F\u0627\u062E\u0644 \u0627\u0644\u062C\u0633\u0645 \u0623\u0648 \u0645\u0646 \u062E\u0644\u0627\u0644 \u0627\u0644\u0625\u062D\u0627\u0637\u0629 \u0628\u062C\u0633\u0645 \u0641\u064A \u062D\u0627\u0644\u0629 \u062A\u0648\u0627\u0632\u0646 \u062D\u0631\u0627\u0631\u064A \u0623\u0648 \u062A\u0648\u0627\u0632\u0646 \u062A\u0631\u0645\u0648\u062F\u064A\u0646\u0627\u0645\u064A\u0643\u064A \u0623\u0648 \u0623\u0646 \u0647\u0630\u0627 \u0627\u0644\u0625\u0634\u0639\u0627\u0639 \u0627\u0646\u0637\u0644\u0642 \u0645\u0646 \u062C\u0633\u0645 \u0623\u0633\u0648\u062F (\u063A\u064A\u0631 \u0646\u0627\u0641\u0630 \u0648\u063A\u064A\u0631 \u0642\u0627\u0628\u0644 \u0644\u0639\u0643\u0633 \u0627\u0644\u0625\u0634\u0639\u0627\u0639\u0627\u062A \u0627\u0644\u0645\u0648\u062C\u0647\u0629 \u0625\u0644\u064A\u0647) \u0645\u0646 \u062E\u0644\u0627\u0644 \u0639\u0645\u0644\u064A\u0629 \u062A\u0643\u0648\u0646 \u0641\u064A\u0647 \u0627\u0644\u062D\u0631\u0627\u0631\u0629 \u062B\u0627\u0628\u062A\u0629 \u0648\u0645\u0646\u062A\u0638\u0645\u0629. \u0648\u0625\u0646 \u0647\u0630\u0627 \u0627\u0644\u0625\u0634\u0639\u0627\u0639 \u0644\u062F\u064A\u0647 \u0645\u062F\u0649 \u0645\u062D\u062F\u062F \u0645\u0646 \u0627\u0644\u0637\u064A\u0641 \u0648\u0627\u0644\u0634\u062F\u0629 \u0648\u0627\u0644\u062A\u064A \u062A\u0639\u062A\u0645\u062F \u0641\u0642\u0637 \u0639\u0644\u0649 \u062D\u0631\u0627\u0631\u0629 \u0647\u0630\u0627 \u0627\u0644\u062C\u0633\u0645."@ar . . . . "72048"^^ . . . . . . "Radiasi benda-hitam"@in . . . . "right"@en . . . . . . . . . . "Black-body radiation"@en . . "Gorputz beltzaren erradiazioa edozein objektu berok igorritako erradiazio elektromagnetikoari deritzo. Gorputz beltz, idealizatutako gorputz opako eta ez islatzaile bati esaten zaio. Uhin-luzeren espektro espezifikoa du, gorputzaren tenperaturaren menpeko intentsitatearekiko alderantzizko proportzionala dena non kalkulu eta teoriagatik uniformea eta konstantea dela suposatzen den.Objektu arrunt askok berez igorritako erradiazio termikoa, gorputz beltzaren erradiazio gisa hurbil daiteke. Oreka termikoan dagoen guztiz isolatutako itxiturak gorputz beltzaren erradiazioa igortzen du eta horman egindako zirrikitu batetik zehar igorriko da, badin eta egindako zuloak orekan eragindako efektua arbuiagarritzat har badaiteke. Gela ilun batean dagoen gorputza, beltz agertzen da igortzen duen energia gehiena espektro infragorrian dagoelako eta gizakiaren begiak ezin duelako hauteman. Giza begiak tarte ikuskorraren azpitik dauden argi-uhinak ikusi ezin dituenez, tenperatura ikusgai baxuenean gorputz beltza gris ikusten da, nahiz eta, haren espektro fisikoaren maximoa eremu infragorrian kokatzen den. Funtsean, giza begiak argi maila baxuetan ez du kolorerik ikusten, baina, objektua apur bat berotzen denean gorri kolorez agertzen da eta tenperatura areagotu ahala gorri distiratsua, laranja, hori, zuri eta urdin-zurian bihurtzen da. Planeta eta izarrak haien inguruarekin oreka termikoan egon ez arren eta gorputz beltz perfektuak ez izan arren, haiek igorritako energiaren lehen hurbilketa gisa gorputz beltzaren erradiazioa hartzen da. Zulo beltzak gorputz beltz ia perfektuak dira, bertan erortzen den erradiazio guztia xurgatzen dutelako. Zulo beltzek gorputz beltzaren erradiazioa igortzen dutela proposatua izan da, Hawking-en erradiazioa deiturikoa, non tenperatura zulo beltzaren masaren araberako den ."@eu . . . . . . . . . . . . . . . . . . . "\u9ED2\u4F53\u653E\u5C04\uFF08\u3053\u304F\u305F\u3044\u307B\u3046\u3057\u3083\u3001\u82F1: black body radiation\uFF09\u3068\u306F\u3001\u9ED2\u4F53\u304C\u653E\u51FA\u3059\u308B\u71B1\u653E\u5C04\u3067\u3042\u308B\u3002\u71B1\u3057\u305F\u7269\u8CEA\u3084\u6052\u661F\u306E\u767A\u3059\u308B\u5149\u304C\u3001\u6BD4\u8F03\u7684\u6E29\u5EA6\u304C\u4F4E\u3044\u3068\u304D\u306F\u8D64\u3063\u307D\u304F\u3001\u6E29\u5EA6\u304C\u9AD8\u3044\u307B\u3069\u9752\u767D\u304F\u306A\u308B\u7406\u7531\u306F\u3001\u9ED2\u4F53\u653E\u5C04\u306E\u6E29\u5EA6\u7279\u6027\u306B\u3088\u308B\u3082\u306E\u3067\u3042\u308B\u3002"@ja . . . . . . . "1121179480"^^ . . . . . . . . . . . "La radiaci\u00F3n del cuerpo negro es la radiaci\u00F3n electromagn\u00E9tica t\u00E9rmica dentro o alrededor de un cuerpo en equilibrio termodin\u00E1mico con su entorno, o emitida por un cuerpo negro (un cuerpo opaco y no reflectante). Tiene un espectro y una intensidad espec\u00EDficos que dependen solo de la temperatura del cuerpo, que se asumen para simplificar los c\u00E1lculos y la teor\u00EDa como uniformes y constantes.\u200B\u200B\u200B\u200B La radiaci\u00F3n t\u00E9rmica emitida espont\u00E1neamente por muchos objetos ordinarios puede aproximarse a la radiaci\u00F3n de cuerpo negro. Un recinto perfectamente aislado que se encuentra en equilibrio t\u00E9rmico internamente contiene radiaci\u00F3n de cuerpo negro y lo emitir\u00E1 a trav\u00E9s de un agujero hecho en su pared, siempre que el agujero sea lo suficientemente peque\u00F1o como para tener un efecto insignificante en el equilibrio. Un cuerpo negro a temperatura ambiente aparece negro, ya que la mayor parte de la energ\u00EDa que irradia es infrarroja y no puede ser percibida por el ojo humano. Debido a que el ojo humano no puede percibir ondas de luz a frecuencias m\u00E1s bajas, un cuerpo negro, visto en la oscuridad a la temperatura m\u00E1s baja y apenas visible, aparece subjetivamente gris, aunque su pico de espectro f\u00EDsico objetivo est\u00E1 en el rango infrarrojo.\u200B Cuando se pone un poco m\u00E1s caliente, aparece rojo apagado. A medida que aumenta su temperatura, se vuelve amarillo, blanco y, finalmente, azul-blanco. Aunque los planetas y las estrellas no est\u00E1n en equilibrio t\u00E9rmico con sus alrededores ni los cuerpos negros perfectos, la radiaci\u00F3n del cuerpo negro se usa como primera aproximaci\u00F3n de la energ\u00EDa que emiten.\u200B Los agujeros negros son cuerpos negros casi perfectos, en el sentido de que absorben toda la radiaci\u00F3n que cae sobre ellos. Se ha propuesto que emitan radiaci\u00F3n de cuerpo negro (radiaci\u00F3n de Hawking), con una temperatura que depende de la masa del agujero negro.\u200B El t\u00E9rmino cuerpo negro fue introducido por Gustav Kirchhoff en 1860.\u200B La radiaci\u00F3n del cuerpo negro tambi\u00E9n se denomina radiaci\u00F3n t\u00E9rmica, radiaci\u00F3n de la cavidad, radiaci\u00F3n completa o radiaci\u00F3n de temperatura."@es . "Radiaci\u00F3n de cuerpo negro"@es . . "Black-body radiation is the thermal electromagnetic radiation within, or surrounding, a body in thermodynamic equilibrium with its environment, emitted by a black body (an idealized opaque, non-reflective body). It has a specific, continuous spectrum of wavelengths, inversely related to intensity, that depend only on the body's temperature, which is assumed, for the sake of calculations and theory, to be uniform and constant. A perfectly insulated enclosure which is in thermal equilibrium internally contains black-body radiation, and will emit it through a hole made in its wall, provided the hole is small enough to have a negligible effect upon the equilibrium. The thermal radiation spontaneously emitted by many ordinary objects can be approximated as black-body radiation. Of particular importance, although planets and stars (including the Earth and Sun) are neither in thermal equilibrium with their surroundings nor perfect black bodies, black-body radiation is still a good first approximation for the energy they emit. The sun's radiation, after being filtered by the earth's atmosphere, thus characterises \"daylight\", which humans (also most other animals) have evolved to use for vision. A black body at room temperature (23 \u00B0C (296 K; 73 \u00B0F)) radiates mostly in the infrared spectrum, which cannot be perceived by the human eye, but can be sensed by some reptiles. As the object increases in temperature to about 500 \u00B0C (773 K; 932 \u00B0F), the emission spectrum gets stronger and extends into the human visual range, and the object appears dull red. As its temperature increases further, it emits more and more orange, yellow, green, and blue light (and ultimately beyond violet, ultraviolet). Tungsten filament lights have a continuous black body spectrum with a cooler colour temperature, around 2,700 K (2,430 \u00B0C; 4,400 \u00B0F), which also emits considerable energy in the infrared range. Modern-day fluorescent and LED lights, which are more efficient, do not have a continuous black body emission spectrum, rather emitting directly, or using combinations of phosphors that emit multiple narrow spectrums. Black holes are near-perfect black bodies in the sense that they absorb all the radiation that falls on them. It has been proposed that they emit black-body radiation (called Hawking radiation) with a temperature that depends on the mass of the black hole. The term black body was introduced by Gustav Kirchhoff in 1860. Black-body radiation is also called thermal radiation, cavity radiation, complete radiation or temperature radiation."@en . "284"^^ . . . "A radia\u00E7\u00E3o do corpo negro \u00E9 a radia\u00E7\u00E3o eletromagn\u00E9tica t\u00E9rmica dentro ou ao redor de um corpo em equil\u00EDbrio termodin\u00E2mico com seu ambiente, ou emitida por um corpo negro, um corpo hipot\u00E9tico opaco e n\u00E3o reflexivo que absorve toda a radia\u00E7\u00E3o eletromagn\u00E9tica que nele incide e emite radia\u00E7\u00E3o eletromagn\u00E9tica t\u00E9rmica, que \u00E9 o resultado do movimento acelerado de part\u00EDculas carregadas. Em um material aquecido, a temperatura est\u00E1 associada \u00E0 energia cin\u00E9tica dos \u00E1tomos. Um aumento de temperatura implica em mais energia cin\u00E9tica fornecida para os \u00E1tomos que constituem o material. Estes emitem luz a partir de part\u00EDculas carregadas em movimento, gerando radia\u00E7\u00E3o eletromagn\u00E9tica. A radia\u00E7\u00E3o do corpo negro tem um espectro espec\u00EDfico e intensidade que depende apenas da temperatura do corpo, o que \u00E9 assumido por uma quest\u00E3o de c\u00E1lculos e teoria para ser uniforme e constante. Todos os corpos emitem radia\u00E7\u00E3o t\u00E9rmica, mas n\u00E3o necessariamente na faixa do vis\u00EDvel, e \u00E0 medida que se aumenta a temperatura a radia\u00E7\u00E3o \u00E9 alterada. Os cientistas do s\u00E9culo XIX tentaram explicar as leis da radia\u00E7\u00E3o do corpo negro construindo um modelo da radia\u00E7\u00E3o eletromagn\u00E9tica em termos de ondas e usando a f\u00EDsica cl\u00E1ssica para derivar suas caracter\u00EDsticas. Eles, entretanto, descobriram, com muita surpresa, que as caracter\u00EDsticas deduzidas n\u00E3o estavam de acordo com as observa\u00E7\u00F5es experimentais. De acordo com a f\u00EDsica cl\u00E1ssica, qualquer objeto muito quente deveria devastar a regi\u00E3o em volta dele com suas radia\u00E7\u00F5es de alta frequ\u00EAncia. At\u00E9 mesmo o corpo humano, em 37 \u00B0C, deveria brilhar no escuro. N\u00E3o existiria, de fato, a escurid\u00E3o."@pt . "Le rayonnement du corps noir, \u00E9galement appel\u00E9 rayonnement complet ou rayonnement thermique, est le type de rayonnement \u00E9lectromagn\u00E9tique \u00E0 l'int\u00E9rieur ou entourant un corps en \u00E9quilibre thermodynamique avec son environnement, ou \u00E9mis par un corps noir (un corps opaque et non r\u00E9fl\u00E9chissant) maintenu \u00E0 une temp\u00E9rature constante et uniforme. Le rayonnement poss\u00E8de un spectre sp\u00E9cifique et une intensit\u00E9 qui d\u00E9pend seulement de la temp\u00E9rature du corps. L'expression \u00AB corps noir \u00BB a \u00E9t\u00E9 introduite par Gustav Kirchhoff en 1860."@fr . . . . "A radia\u00E7\u00E3o do corpo negro \u00E9 a radia\u00E7\u00E3o eletromagn\u00E9tica t\u00E9rmica dentro ou ao redor de um corpo em equil\u00EDbrio termodin\u00E2mico com seu ambiente, ou emitida por um corpo negro, um corpo hipot\u00E9tico opaco e n\u00E3o reflexivo que absorve toda a radia\u00E7\u00E3o eletromagn\u00E9tica que nele incide e emite radia\u00E7\u00E3o eletromagn\u00E9tica t\u00E9rmica, que \u00E9 o resultado do movimento acelerado de part\u00EDculas carregadas."@pt . . . . . . . . . . . . . . "Nigra-korpa radiado"@eo . . . . . . "Rada\u00EDocht d\u00FAchoirp"@ga . . . . . . . . . . "Human-Visible.jpg"@en . . . . "La radiaci\u00F3n del cuerpo negro es la radiaci\u00F3n electromagn\u00E9tica t\u00E9rmica dentro o alrededor de un cuerpo en equilibrio termodin\u00E1mico con su entorno, o emitida por un cuerpo negro (un cuerpo opaco y no reflectante). Tiene un espectro y una intensidad espec\u00EDficos que dependen solo de la temperatura del cuerpo, que se asumen para simplificar los c\u00E1lculos y la teor\u00EDa como uniformes y constantes.\u200B\u200B\u200B\u200B"@es . . . . . "Photo of a person in the infrared spectrum, shifted to the visible"@en . . . . . . . . "Le rayonnement du corps noir, \u00E9galement appel\u00E9 rayonnement complet ou rayonnement thermique, est le type de rayonnement \u00E9lectromagn\u00E9tique \u00E0 l'int\u00E9rieur ou entourant un corps en \u00E9quilibre thermodynamique avec son environnement, ou \u00E9mis par un corps noir (un corps opaque et non r\u00E9fl\u00E9chissant) maintenu \u00E0 une temp\u00E9rature constante et uniforme. Le rayonnement poss\u00E8de un spectre sp\u00E9cifique et une intensit\u00E9 qui d\u00E9pend seulement de la temp\u00E9rature du corps. Le rayonnement thermique spontan\u00E9ment \u00E9mis par les objets ordinaires peut \u00EAtre approxim\u00E9 par un rayonnement de corps noir. Une enceinte parfaitement isol\u00E9e, en \u00E9quilibre thermique interne, renferme un rayonnement de corps noir, qui pourra \u00EAtre \u00E9mis \u00E0 travers un trou fait dans sa paroi, \u00E0 condition que le trou soit assez petit pour que son effet soit n\u00E9gligeable sur l'\u00E9quilibre. Un corps noir \u00E0 temp\u00E9rature ambiante para\u00EEtra noir car la plus grande partie de l'\u00E9nergie \u00E9mise est situ\u00E9e dans le domaine de l'infrarouge, qui ne peut \u00EAtre per\u00E7ue par l'\u0153il humain. L'\u0153il humain \u00E9tant incapable de percevoir la couleur \u00E0 de faibles intensit\u00E9s de lumi\u00E8re, un corps noir observ\u00E9 dans l'obscurit\u00E9 \u00E0 la temp\u00E9rature la plus basse sera faiblement visible, et para\u00EEtra subjectivement gris, m\u00EAme si son spectre physique atteint son niveau maximum dans les infrarouges. Lorsqu'il devient un peu plus chaud, il prend une couleur rouge terne. Au fur et \u00E0 mesure que sa temp\u00E9rature augmente, sa longueur d'onde diminue pour atteindre une couleur bleue-blanche \u00E9blouissante. Malgr\u00E9 le fait que les plan\u00E8tes et les \u00E9toiles ne soient ni en \u00E9quilibre thermique avec leur environnement ni des corps noirs parfaits, le rayonnement du corps noir est utilis\u00E9 comme une premi\u00E8re approximation de l'\u00E9nergie qu'elles \u00E9mettent. Les trous noirs sont des corps noirs presque parfaits, dans le sens qu'ils absorbent toutes radiations qui les frappent. Ils \u00E9mettraient cependant un rayonnement de corps noir (appel\u00E9 rayonnement de Hawking) d'apr\u00E8s une temp\u00E9rature proportionnelle \u00E0 leur masse. L'expression \u00AB corps noir \u00BB a \u00E9t\u00E9 introduite par Gustav Kirchhoff en 1860."@fr . . . . . . . . . "Hohlraumstrahlung"@de . . "Rayonnement du corps noir"@fr . . . . "\u9ED2\u4F53\u653E\u5C04"@ja . . . . . . "\u9ED1\u4F53\u8F90\u5C04"@zh . . . . . . . . . "726748"^^ . . . . . . . . . . . . . . . . . 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"\u0625\u0634\u0639\u0627\u0639 \u0627\u0644\u062C\u0633\u0645 \u0627\u0644\u0623\u0633\u0648\u062F"@ar . . . . . . "Black-body radiation is the thermal electromagnetic radiation within, or surrounding, a body in thermodynamic equilibrium with its environment, emitted by a black body (an idealized opaque, non-reflective body). It has a specific, continuous spectrum of wavelengths, inversely related to intensity, that depend only on the body's temperature, which is assumed, for the sake of calculations and theory, to be uniform and constant. The thermal radiation spontaneously emitted by many ordinary objects can be approximated as black-body radiation."@en . . . . "Much of a person's energy is radiated away in the form of long-wave infrared light. Some materials are transparent in the infrared, but opaque to visible light, as is the plastic bag in this thermal camera image . Other materials are transparent to visible light, but opaque or reflective in the infrared, noticeable by the darkness of the man's glasses."@en . . . . "Radiasi benda-hitam adalah salah satu jenis radiasi elektromagnetik termal yang terjadi di dalam atau di sekitar benda dalam keadaan kesetimbangan termodinamika dengan lingkungannya atau saat ada proses pelepasan dari benda hitam. Benda hitam merupakan benda yang buram dan tidak memantulkan cahaya. Diasumsikan demi perhitungan dan teori berada pada suhu konstan dan seragam. Radiasi ini memiliki spektrum dan intensitas spesifik yang bergantung hanya benda temperatur benda."@in . . . . "Gorputz beltzaren erradiazio"@eu . . . . . . . . . . . . . . . . . . . . . . . . . "Radiasi benda-hitam adalah salah satu jenis radiasi elektromagnetik termal yang terjadi di dalam atau di sekitar benda dalam keadaan kesetimbangan termodinamika dengan lingkungannya atau saat ada proses pelepasan dari benda hitam. Benda hitam merupakan benda yang buram dan tidak memantulkan cahaya. Diasumsikan demi perhitungan dan teori berada pada suhu konstan dan seragam. Benda hitam merupakan penyerap dan pemancar kalor radiasi sempurna (efisiensi 100%). Besar energi yang dipancarkan oleh suatu permukaan benda hitam dalam bentuk radiasi kalor setiap satuan waktu sebanding dengan luas permukaan dan sebanding dengan pangkat empat suhu mutlak benda itu. Radiasi ini memiliki spektrum dan intensitas spesifik yang bergantung hanya benda temperatur benda. Radiasi panas yang dilepaskan spontan oleh banyak benda dapat diperkirakan sebagai radiasi benda hitam. Sebuah daerah terinsulasi sempurna yang berada pada kesetimbangan termal secara internal berisi radiasi benda-hitam dan akan melepaskannya melalui lubang yang dibuat pada dinding, lubang dibuat kecil sehingga tidak berpengaruh pada kesetimbangan. Benda-hitam pada suhu ruang terlihat hitam, karena semua energi yang ia radiasikan adalah inframerah dan tak dapat dilihat mata manusia. Karena mata manusia tak dapat melihat warna pada intensitas cahaya sangat rendah, sebuah benda hitam jika dilihat dalam gelap terlihat berwarna abu-abu (namun ini hanya karena mata manusia hanya sensitif terhadap hitam dan putih pada intensitas cahaya sangat rendah- pada kenyataanya, frekuensi cahaya pada range terlihat tetaplah berwarna merah), meski spektrum puncaknya berada pada kisaran inframerah. Jika sedikit dipanaskan, warnanya terlihat merah tua. Jika temperatur dinaikkan terus maka menjadi biru-putih. Meski planet dan bintang tidak berada pada kesetimbangan termal dengan sekitarnya dan juga bukanlah benda hitam sempurna, radiasi benda-hitam digunakan pertama kali sebagai perkiraan untuk energi yang mereka lepas.Lubang hitam adalah benda hitam yang mendekati sempurna, karena ia menyerap semua radiasi yang datang padanya. Telah diajukan bahwa mereka melepas radiasi benda hitam (disebut radiasi Hawking), dengan suhu tergantung massa lubang hitam. Istilah benda hitam pertama kali diperkenalkan oleh Gustav Kirchhoff tahun 1860. Radiasi benda-hitam disebut juga radiasi sempurna atau radiasi temperatur atau radiasi termal."@in . . . . . . . . . "An rada\u00EDocht leictreamaighn\u00E9adach a asta\u00EDonn d\u00FAchorp, b\u00EDonn d\u00E1ileadh minic\u00EDochta (is tonnfhad) inti a bhraitheann ar theocht an d\u00FAchoirp amh\u00E1in. M\u00E1s \u00E9 500 K teocht an dromchla, n\u00EDl ach rada\u00EDocht infridhearg idir na tonnfhaid 1,500 nm is 100,000 nm i gceist, agus \u00ED dofheicthe. Ag teocht 1,000 K, asta\u00EDonn dromchla an d\u00FAchoirp beag\u00E1in\u00EDn d\u00E1 rada\u00EDocht ag na tonnfhaid dhearga sa raon infheicthe, agus b\u00EDonn breo dearg ar an rud. Ag teocht n\u00EDos airde f\u00F3s, tarla\u00EDonn rada\u00EDocht ar feadh an raoin infheicthe, agus deirtear go bhfuil an rud b\u00E1nbhruithneach. Go bun\u00FAsach, \u00E9ir\u00EDonn an asta\u00EDocht rada\u00EDochta seo \u00F3 ghluaiseachta\u00ED na leictreon i ndromchla te. Nuair a th\u00E9itear an t-\u00E1bhar arda\u00EDtear fuinneamh gach leictreoin go dt\u00ED leibh\u00E9al ceadaithe os cionn an bhunleibh\u00E9il. Nuair a chailleann leictreon an ch\u00E9im is l\u00FA fuinnimh, asta\u00EDtear an fuinneamh seo i bhfoirm candaim rada\u00EDochta a dtugtar f\u00F3t\u00F3in orthu. Thaispe\u00E1in Josef Stefan i 1879 is Ludwig Boltzmann i 1889 gur f\u00E9idir an fuinneamh ioml\u00E1n astaithe ag dromchla te, E, a scr\u00EDobh mar fheidhm na dearbhtheochta T: E = \u03C3 T4, agus is \u00E9 \u03C3 tairiseach Stefan-Boltzmann. Ag \u00E9ir\u00ED as a staid\u00E9ar ar rada\u00EDocht d\u00FAchoirp, thairg Max Planck i 1900 gur cainn\u00EDocht chandamach \u00ED an solas. T\u00E1 an pirim\u00E9adar opt\u00FAil bunaithe ar an rada\u00EDocht d\u00FAchoirp. Is \u00ED an fhoinse solais is t\u00E1bhachta\u00ED d\u00FAinne ar Domhan n\u00E1 an Ghrian, arb \u00E9 5750 K me\u00E1nteocht a dromchla. B\u00EDonn a l\u00E1n tonnfhad i rada\u00EDocht d\u00FAchoirp na Gr\u00E9ine, idir rada\u00EDocht infridhearg dhofheicthe, sholas infheicthe, agus rada\u00EDocht ultraivialait dhofheicthe."@ga . . "Radia\u00E7\u00E3o de corpo negro"@pt . 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"Photo of person in the visible spectrum"@en . . . . . . "\u9ED2\u4F53\u653E\u5C04\uFF08\u3053\u304F\u305F\u3044\u307B\u3046\u3057\u3083\u3001\u82F1: black body radiation\uFF09\u3068\u306F\u3001\u9ED2\u4F53\u304C\u653E\u51FA\u3059\u308B\u71B1\u653E\u5C04\u3067\u3042\u308B\u3002\u71B1\u3057\u305F\u7269\u8CEA\u3084\u6052\u661F\u306E\u767A\u3059\u308B\u5149\u304C\u3001\u6BD4\u8F03\u7684\u6E29\u5EA6\u304C\u4F4E\u3044\u3068\u304D\u306F\u8D64\u3063\u307D\u304F\u3001\u6E29\u5EA6\u304C\u9AD8\u3044\u307B\u3069\u9752\u767D\u304F\u306A\u308B\u7406\u7531\u306F\u3001\u9ED2\u4F53\u653E\u5C04\u306E\u6E29\u5EA6\u7279\u6027\u306B\u3088\u308B\u3082\u306E\u3067\u3042\u308B\u3002"@ja . . . . . . . . . . . "Human-Infrared.jpg"@en . . . . . . . . .