Assertion: fusion | /r/HasProperty | achieved in zeta
Facets:
Source sentences:
text: This was apparently a great success, and in January 1958 they announced the fusion had been achieved in ZETA based on the release of neutrons and measurements of the plasma temperature.
text: In early 1958, John Cockcroft announced that fusion had been achieved in the ZETA, an announcement that made headlines around the world.