Assertion: uranium | /r/HasProperty | discovered
Facets:
value: soon after
type: TEMPORAL
Source sentences:
text: Soon after, it was discovered that nuclear fission can produce a cascading effect: firing a neutron into the nucleus of a uranium isotope splits the nucleus of the uranium isotope in two, which releases heat but also knocks a couple of neutrons loose.
text: The fact that uranium is radioactive was not discovered for 107 years after uranium was discovered.