Black-body radiation is the thermal electromagnetic radiation within, or surrounding, a body in thermodynamic equilibrium with its environment, emitted...

incidence. The radiation emitted by a black body in thermal equilibrium with its environment is called black-body radiation. The name "black body" is given...

Planck's law (also Planck radiation law: 1305 ) describes the spectral density of electromagnetic radiation emitted by a black body in thermal equilibrium...

perfect black bodies. Kirchhoff's law states that: For a body of any arbitrary material emitting and absorbing thermal electromagnetic radiation at every...

ionization. Black-body radiation is radiation from an idealized radiator that emits at any temperature the maximum possible amount of radiation at any given...

of radiation at any given wavelength. A black-body will also absorb the maximum possible incident radiation at any given wavelength. A black-body with...

In physics, Wien's displacement law states that the black-body radiation curve for different temperatures will peak at different wavelengths that are inversely...

light or electromagnetic radiation of any wavelength that is absorbed, reflected, or otherwise emitted (e.g. black-body radiation) by matter on any scale...

mechanics of black-body radiation led to the development of the theory of quantum mechanics, the effort to understand the statistical mechanics of black holes...

black body. A black body is also a perfect emitter. The radiation of such perfect emitters is called black-body radiation. The ratio of any body's emission...

pressure (see Gay-Lussac's law), or the wavelength of its emitted black-body radiation. Absolute temperature is also useful when calculating chemical reaction...

spectroscopy and the emission of black-body radiation by heated objects. He coined the term black-body radiation in 1860. Several different sets of...

terahertz radiation band. Almost all black-body radiation from objects near room temperature is in the IR band. As a form of electromagnetic radiation, IR carries...

known as a black body, and the radiation it emits is called black-body radiation. By the late 19th century, thermal radiation had been fairly well characterized...

black-body radiation. The problem had been stated by Kirchhoff in 1859: "how does the intensity of the electromagnetic radiation emitted by a black body...

entropy. The most common example of a photon gas in equilibrium is the black-body radiation. Photons are part of a family of particles known as bosons, particles...

the ideal massive Fermi gas, the ideal massive Bose gas as well as black body radiation (photon gas) which may be treated as a massless Bose gas, in which...

classical physics, such as Max Planck's solution in 1900 to the black-body radiation problem, and the correspondence between energy and frequency in Albert...

Hawking radiation is the theoretical emission released outside a black hole's event horizon. This is counterintuitive because once ordinary electromagnetic...

definitions of the kelvin (K) and the gas constant, in Planck's law of black-body radiation and Boltzmann's entropy formula, and is used in calculating thermal...

1900 as a proportionality constant needed to explain experimental black-body radiation. Planck later referred to the constant as the "quantum of action"...

intensity of the radiation corresponds to black-body radiation at 2.726 K because red-shifted black-body radiation is just like black-body radiation at a lower...

First proposed by Gustav Kirchhoff in 1860 and used in the study of black-body radiation (hohlraumstrahlung), this idealized cavity can be approximated in...

the transition of electrons to lower energy levels in an atom and black-body radiation. The energy of an individual photon is quantized and proportional...

such as optomechanical meta-devices. Terahertz radiation is emitted as part of the black-body radiation from anything with a temperature greater than about...

surface emitting the radiation. The emissivity is generally between zero and one. An emissivity of one corresponds to a black body. The radiant exitance...

electricity. In 1900, the German physicist Max Planck was studying black-body radiation, and he suggested that the experimental observations, specifically...

so does the average energy of the electromagnetic radiation given off by the flame (see Black body). Other oxidizers besides oxygen can be used to produce...

approximation to the spectral radiance of electromagnetic radiation as a function of wavelength from a black body at a given temperature through classical arguments...

had been trying to understand the emission of radiation from heated objects, known as black-body radiation. By assuming that energy can be absorbed or released...