net radiant flux

См. также в других словарях:

• Flux — This article is about the concept of flux in science and mathematics. For other uses of the word, see Flux (disambiguation). In the various subfields of physics, there exist two common usages of the term flux, both with rigorous mathematical… …   Wikipedia

• Defining equation (physics) — For common nomenclature of base quantities used in this article, see Physical quantity. For 4 vector modifications used in relativity, see Four vector. Very often defining equations are in the form of a constitutive equation, since parameters of… …   Wikipedia

• Luminous efficacy — is a measure of how well a light source produces visible light. It is the ratio of luminous flux to power. Depending on context, the power can be either the radiant flux of the source s output, or it can be the total electric power consumed by… …   Wikipedia

• Measuring instrument — Captain Nemo and Professor Aronnax contemplating measuring instruments in Twenty Thousand Leagues Under the Sea …   Wikipedia

• History of thermodynamics — The history of thermodynamics is a fundamental strand in the history of physics, the history of chemistry, and the history of science in general. Owing to the relevance of thermodynamics in much of science and technology, its history is finely… …   Wikipedia

• Lumen (unit) — The lumen (symbol: lm) is the SI unit of luminous flux, a measure of the perceived power of light. Luminous flux differs from radiant flux, the measure of the total power of light emitted, in that luminous flux is adjusted to reflect the varying… …   Wikipedia

• Galileo (spacecraft) — Infobox Spacecraft Name = Galileo Orbiter Caption = Galileo is prepared for mating with the IUS booster Organization = NASA Major Contractors = Mission Type = Orbiter, fly by Flyby Of = Venus, Earth, 951 Gaspra, 243 Ida Satellite Of = Jupiter… …   Wikipedia

• Thermal management of electronic devices and systems — Heat generated by electronic devices and circuitry must be dissipated to improve reliability and prevent premature failure. Techniques for heat dissipation can include heatsinks and fans for air cooling, and other forms of computer cooling such… …   Wikipedia

• Huygens probe — Infobox Spacecraft Name = Huygens probe Caption = A scale replica of the probe, 1.3 metres across. Organization = ESA/ASI/NASA Major Contractors = Aérospatiale, now Thales Alenia Space Mission Type = Lander Satellite Of = Saturn Launch = December …   Wikipedia

• Ray tracing (graphics) — In computer graphics, ray tracing is a technique for generating an image by tracing the path of light through pixels in an image plane. The technique is capable of producing a very high degree of photorealism; usually higher than that of typical… …   Wikipedia

• Radiometer — A radiometer is a device for measuring the radiant flux (power) of electromagnetic radiation. Generally, the term “radiometer” denotes an infrared radiation detector, yet it also comprises detectors operating on any electromagnetic wavelength,… …   Wikipedia