Assertion: doppler effect | /r/HasProperty | proved by buys ballot
Facets:
value: soon afterwards
type: TEMPORAL
value: in 1845
type: TEMPORAL
Source sentences:
text: ” As well as explaining his revolutionary concept, Doppler tried to apply it to an explanation of the colour of binary stars (and, in addition, the Doppler Effect of sound was proved soon afterwards by Buys Ballot, in 1845).