About: http://webisa.webdatacommons.org/267899592

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	His other significant work involved establishing the equivalence of gravitational and inertial mass, the study of mass spectrometry, and the propagation of light in such media as water, quartz, and flint.
http://www.w3.org/ns/prov#wasQuotedFrom	nndb.com