About: http://webisa.webdatacommons.org/165847131

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	McCarthy poses some theories about why Greenwood is best known among those who dabbled with earmuffs, and compares him with Thomas Edison, who made improvements to previous inventions, including the lightbulb.
http://www.w3.org/ns/prov#wasQuotedFrom	simonandschuster.com