About: http://webisa.webdatacommons.org/31441425

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	I wonder if the flywheel couldn???t be fabricated from a lighter material, such as plastic or fiberglass.
http://www.w3.org/ns/prov#wasQuotedFrom	cleantechnica.com