About: http://webisa.webdatacommons.org/211516260

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	They are made of positive energy, there is no such thing as negative mass, and no such thing as negative energy.
http://www.w3.org/ns/prov#wasQuotedFrom	thenakedscientists.com