When year and where did the wrost nuclear accident occura nuclear meltdown?

Answer 1

NRX was a heavy water moderated, light water cooled, nuclear research reactor at the Canadian Chalk River Laboratories, which experienced one of the world's first major reactor accidents on 12 December 1952. The reactor began operation on 22 July 1947 under the National Research Council of Canada, and was taken over by Atomic Energy of Canada Limited (AECL) shortly before the 1952 accident. The accident was cleaned up and the reactor restarted within two years. NRX operated for 45 years, being shut down permanently on 8 April 1993[3]. It is currently undergoing decommissioning at the Chalk River Laboratories site.

Answer 2

In terms of shear damage, which can still be felt in terms of nuclear fallout today, the Chenobyl meltdown is arguably the worst nuclear meltdown. For more information, look up Chenobyl meltdown at wikipedia.org Another bad accident was the partial meltdown at Three Mile Island. You could look that up on the wikipedia too.