{ "items" : [
    { "id" : "http://dbpedia.org/resource/Radiometry"
      "properties" : {
        "http://www.w3.org/2000/01/rdf-schema#comment" : [ "Radiometry is a set of techniques for measuring electromagnetic radiation, including visible light. Radiometric techniques in optics characterize the distribution of the radiation's power in space, as opposed to photometric techniques, which characterize the light's interaction with the human eye. Radiometry is distinct from quantum techniques such as photon counting.The use of radiometers to determine the temperature of objects and gasses by measuring radiation flux is called pyrometry."] } } }
