About: http://webisa.webdatacommons.org/125308347

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	Sound is a wave, and just like a pebble in a pond produces concentric waves on the surface of the pond, the speaker (also known as the driver) produces spherical pressure waves.
http://www.w3.org/ns/prov#wasQuotedFrom	acousticinnovations.com