Assertion: cosmic ray | /r/CapableOf | play critical role
Facets:
value: from the early 1930s
type: TEMPORAL
Source sentences:
text: From the early 1930s to the 1950s, cosmic rays played a critical role in the scientific study of the atomic nucleus and its components, for they were the only source of high-energy particles.
text: From the early 1930s to the 1950s, cosmic rays played a critical role in the scientific study of the atomic nucleus and its components, for they were the only source of high-energy particles.
text: From the early 1930s to the 1950s, cosmic rays played a critical role in the scientific study of the atomic nucleus and its components, for they were the only source of high-energy particles.