Assertion: diode | /r/HasProperty | developed at same time
Facets:
value: approximately
type: TEMPORAL
value: separately
type: MANNER
value: as radio receiver detectors
type: MANNER
value: in the early 1900s
type: TEMPORAL
Source sentences:
text: Thermionic (vacuum-tube) diodes and solid-state (semiconductor) diodes were developed separately, at approximately the same time, in the early 1900s, as radio receiver detectors.