PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • Such people as Halley, who edited and published (not to mention correcting proofs of) Isaac Newton's Principia, were quite serious about their proposals that the earth is not only hollow but a series of concentric spheres, in Halley's model turning independently on a north-south axis, probably with life inside and some kind of light like the sun itself.So deadly serious were these people that one
http://www.w3.org/ns/prov#wasQuotedFrom
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