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Re:Isaac Asimov's predictions for what the world will be lik... by throwaway_yy2Di on Wednesday August 28, 2013 @12:34AM (#6288053)
We have at least one fusion plant I know of, the UK Joint Torus, which I know have been operating for decades.

It operated ("actually sustained fusion") for a total of four seconds, in 1997. Most of the work involves non-fusion plasmas.

http://www.jet.efda.org/wp-content/uploads/jeteuropeansucess...

That was a costly experiment: the resulting radiation -- neutron activation of the structure -- made the reactor inaccessible for 18 months.

http://www.iop.org/Jet/fulltext/JETP98037.pdf

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