This film shows the exacting procedures used during the 1970 replacement of the calandria in the NRX nuclear reactor at Chalk River. Produced by the NFB for Atomic Energy of Canada Ltd.

In December 1952, Canada became the site of the world’s first nuclear reactor meltdown at the Chalk River Laboratories in Ontario. A series of mechanical failures and operator mistakes caused the NRX ...

ATLANTA — In a 1952 episode that has taken on legendary status in recent years, Jimmy Carter -- then a young Naval lieutenant -- helped play a leading role in cleanup efforts at the world's first ...

The best secrets are the hardest to find.