PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • t photograph.) By putting his concepts to various tests, using the camera obscura and other tools, Alhazen also introduced the experimental method of proof, insisting that theories had to be verified in practice, a key element to modern science that was missing from the less empirical Greek tradition.
http://www.w3.org/ns/prov#wasQuotedFrom
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