| http://www.w3.org/ns/prov#value | - There is no such thing as ???safe nuclear technologies.??? Nuclear fission ??? the technology that uses the decay of very heavy elements such as uranium and thorium into lighter elements ??? results in radioactive substances that remain dangerous for decades, centuries, millennia, and even longer in some cases (iodine-129, which makes up a significant portion of uranium fission waste, has a half l
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