{ "items" : [
    { "id" : "http://dbpedia.org/resource/Divergence"
      "properties" : {
        "http://www.w3.org/2000/01/rdf-schema#comment" : [ "In vector calculus, divergence is a vector operator that measures the magnitude of a vector field's source or sink at a given point, in terms of a signed scalar. More technically, the divergence represents the volume density of the outward flux of a vector field from an infinitesimal volume around a given point.For example:consider air as it is heated or cooled. The relevant vector field for this example is the velocity of the moving air at a point."] } } }
