A British tokamak just came apart after more than 5,000 plasma pulses, a squashed doughnut that hit 100 million degrees, six times hotter than the core of the Sun, held together by magnets pushing seven million ampere turns through a column at 11.8 tesla
KeysQuestions4Explore4 The UK’s fusion ambitions just got a brutally honest reality check — Britain needs 30,000 kilometers of…
