Assertion: disc's groove | /r/CapableOf | provide constant velocity
Facets:
value: to the stylus in the groove
type: TRANSITIVE-OBJECT
Source sentences:
text: Edison's early patents show that he was aware that sound could be recorded as a spiral on a disc, but Edison concentrated his efforts on cylinders, since the groove on the outside of a rotating cylinder provides a constant velocity to the stylus in the groove, which Edison considered more "scientifically correct".