microwave background radiation

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• Cosmic microwave background radiation — CMB and Cosmic background radiation redirect here. For other uses see CMB (disambiguation) and Cosmic background (disambiguation). Physical cosmology …   Wikipedia

• Discovery of cosmic microwave background radiation — Bell Labs Horn Antenna in Crawford Hill, NJ In 1965 while using the Horn Antenna, Penzias and Wilson stumbled on the microwave background radiation that permeates the universe. This article concerns the accidental discovery of cosmic microwave… …   Wikipedia

• cosmic microwave background radiation — noun (cosmology) the cooled remnant of the hot big bang that fills the entire universe and can be observed today with an average temperature of about 2.725 kelvin • Syn: ↑cosmic background radiation, ↑CBR, ↑CMBR, ↑cosmic microwave background,… …   Useful english dictionary

• Background radiation — This article is about ionizing radiation. For microwave background radiation from space, see Cosmic background radiation and cosmic background. Thermal radiation emitted by Earth is not considered in this category because it is not ionizing.… …   Wikipedia

• background radiation — n. 1. Astron. low intensity, multidimensional microwave radiation present in space: its existence is used to support the validity of the big bang theory since it is thought to be a remnant of the original explosion 2. Physics low levels of… …   Universalium

• background radiation — n. 1. Astron. low intensity, multidimensional microwave radiation present in space: its existence is used to support the validity of the big bang theory since it is thought to be a remnant of the original explosion 2. Physics low levels of… …   English World dictionary

• cosmic background radiation — noun (cosmology) the cooled remnant of the hot big bang that fills the entire universe and can be observed today with an average temperature of about 2.725 kelvin • Syn: ↑CBR, ↑cosmic microwave background radiation, ↑CMBR, ↑cosmic microwave… …   Useful english dictionary

• background radiation — noun Date: 1968 the microwave radiation pervading the universe that exhibits a corresponding blackbody temperature of 2.7 K and that is the principal evidence supporting the big bang theory called also cosmic background radiation …   New Collegiate Dictionary

• microwave background — noun : background radiation herein …   Useful english dictionary

• Timeline of cosmic microwave background astronomy — Timeline of cosmic microwave background astronomyThermal (non microwave background) temperature predictions* 1896 Charles Edouard Guillaume estimates the radiation of the stars to be 5.6K. [Guillaume, C. E., 1896, La Nature 24, series 2, p. 234,… …   Wikipedia

• List of cosmic microwave background experiments — A comparison of the sensitivity of WMAP with COBE and Penzias and Wilson s telescope. Simulated data. There have been a variety of experiments to measure the Cosmic microwave background (CMB) radiation anisotropies and polarization since its… …   Wikipedia