About: http://webisa.webdatacommons.org/6106730

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	One idea is a variation on the ???tired light??? hypothesis: the forward propagation of light through Hydrogen atoms suffers a delay.
http://www.w3.org/ns/prov#wasQuotedFrom	wordpress.com