About: http://webisa.webdatacommons.org/85616920

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	Thus while light and other energy is massless while moving at c, it still has a 'rest mass' equal to its energy divided by c^2 which is how Einstein predicted that it would bend in the presence of a strong gravitational field.
http://www.w3.org/ns/prov#wasQuotedFrom	rationalresponders.com