About: http://webisa.webdatacommons.org/139519217

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	A predetermined delay, for example 3 seconds, can be implemented such that the firing handle will not fire the x-ray beam until after the predetermined delay has elapsed after pushing the rotor-up button.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com