About: http://webisa.webdatacommons.org/41137029

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	Given this design, it is likely the torpedo has some sort of coating to prevent wetting of the surface and to promote formation and maintenance of the cavitation bubble around the hull.
http://www.w3.org/ns/prov#wasQuotedFrom	reddit.com