Fukushima concerns unanswered: The general view has always been that the Fukushima reactor meltdowns in Japan in 2011 were caused by the tsunami that knocked out backup power to the atomic plant. Daniel Hurst writes that Japanese nuclear engineers think that’s not the full story and, six years on, say a key question remains unanswered: What damage did the massive earthquake cause at the atomic plant before it was hit by the subsequent tsunami?
Robots in Fukushima: Engineers at Japan’s wrecked Fukushima Daiichi nuclear power plant recently sent a small scorpion-like robot crawling down a pipe into an area with radiation levels that would kill a human in minutes. The journey killed the robot, too, writes Daniel Hurst. The ill fated machine, named Sasori, is one of several robots sent into highly radioactive zones in reactor buildings by engineers trying to deal with the nuclear disaster.
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