Assertion: cone's shape | /r/CapableOf | approach theoretical shape
Facets:
value: before jet formation
type: TEMPORAL
Source sentences:
text: Sir Geoffrey Ingram Taylor in 1964 described this phenomenon, theoretically derived based on general assumptions that the requirements to form a perfect cone under such conditions required a semi-vertical angle of 49.3° (a whole angle of 98.6°) and demonstrated that the shape of such a cone approached the theoretical shape just before jet formation.