Assertion: doppler effect | /r/HasProperty | articulated by namesake austrian physicist
Facets:
value: in 1842
type: TEMPORAL
value: theoretically
type: MANNER
Source sentences:
text: The Doppler effect was theoretically articulated by a namesake Austrian physicist in 1842, but it was not for another hundred years that sonography, visually graphing or displaying sound, became a vigorous scientific field.