About: http://webisa.webdatacommons.org/175654682

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	Specifically, he was interested in the forces that acted upon objects in free-fall and whether those forces affect different types of objects differently.
http://www.w3.org/ns/prov#wasQuotedFrom	pbslearningmedia.org