Assertion: accelerator | /r/HasProperty | atom smashers
Facets:
value: commonly
type: TEMPORAL
value: in the 20th century
type: TEMPORAL
Source sentences:
text: Because the target of the particle beams of early accelerators was usually the atoms of a piece of matter, with the goal being to create collisions with their nuclei in order to investigate nuclear structure, accelerators were commonly referred to as atom smashers in the 20th century.