query: What is the origin of blackbody radiation?
positive_passages.docid: 9645
positive_passages.text: What are the various physical mechanisms for energy transfer to the photon during blackbody emission?
negative_passages.docid: 52558
negative_passages.text: Where do ultra-high-energy cosmic rays come from?
negative_passages.docid: 82470
negative_passages.text: Why is there an emission of gamma rays?
negative_passages.docid: 98389
negative_passages.text: Electromagnetic waves in vacuum
negative_passages.docid: 3074
negative_passages.text: Physical origin of the inflaton field?
negative_passages.docid: 13758
negative_passages.text: Physical meaning of Maxwell's equations and origin of EM waves
negative_passages.docid: 33172
negative_passages.text: Where do electrons in electricity come from?
negative_passages.docid: 6709
negative_passages.text: Origin of electric charge
negative_passages.docid: 90766
negative_passages.text: Why are alpha particles such a prominent form of radiation and not other types of nucleon arrangement?
negative_passages.docid: 100415
negative_passages.text: Do photons lose energy after radiation pressure is applied to a perfect reflector?
negative_passages.docid: 107499
negative_passages.text: Why moving magnet releases more Magnetic radiation as the number of charges near it are increased?
negative_passages.docid: 85857
negative_passages.text: Do all massive bodies emit Hawking or Unruh radiation?
negative_passages.docid: 33181
negative_passages.text: Radiation– white vs black house, hot or cool?
negative_passages.docid: 41466
negative_passages.text: Can the photoelectric effect be explained without photons?
negative_passages.docid: 112605
negative_passages.text: Why does thermal radiation only occur at infrared and visible frequencies?
negative_passages.docid: 107458
negative_passages.text: How can the black body radiation formula be so general?
negative_passages.docid: 22931
negative_passages.text: Does a charged particle accelerating in a gravitational field radiate?