About: http://webisa.webdatacommons.org/448457297

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	With reflector screens most of the light is reflected back to the source, so you as the potato on the couch are well off-axis wrt the projector up on the ceiling.
http://www.w3.org/ns/prov#wasQuotedFrom	slashdot.org