Assertion: unit's definition | /r/HasProperty | adopted the physicist
Facets:
value: to determine the atomic masses
type: PURPOSE
value: in 1909
type: TEMPORAL
value: to determine avogadro's constant
type: PURPOSE
value: in his extensive experiments
type: TEMPORAL
Source sentences:
text: The same definition was adopted in 1909 the physicist Jean Perrin in his extensive experiments to determine the atomic masses and Avogadro's constant.