Assertion: tritium's life | /r/HasProperty | about 1600 years
Facets:
value: unfortunately
type: OTHER
Source sentences:
text: Unfortunately, the half-life of radium-226 is about 1600 years, so these watches will be about as radioactive 200 years from now as they are today.
text: Unfortunately, the half-life of radium-226 is about 1600 years, so these watches will be about as radioactive 200 years from now as they are today.