or uranium it's safe and it c o 2. who do shows that his colleagues still don't know at what temperature the fusion reaction will run bad. it's just one of the key questions that still need an answer. he's often asked whether nuclear fusion will ever be a viable way to generate energy. that question doesn't really occupy me as long as the technology works it's very unlikely that we won't have a use for it even if we could cover our energy needs with solar cells or whatever they'll still be applications where we'll want to draw on a consistent and steady source of energy. and. this is the fusion centers controlled room in 2018 a 100 scientists came here to carry out terrorist safety is an important question another is nuclear waste. all the materials are chosen to have