Assertion: speed camera | /r/HasProperty | superseded by electronic devices
Facets:
value: entirely
type: DEGREE
Source sentences:
text: Early high-speed cameras used film to record the high-speed events, but were superseded by entirely electronic devices using either a charge-coupled device (CCD) or a CMOS active pixel sensor, recording, typically, over 1,000 frames per second onto DRAM, to be played back slowly to study the motion for scientific study of transient phenomena.