Another step towards fusion power

The developments in this field have taken on a new sense of urgency as global climate change has really come to the fore with the latest heat waves around the world: “A lot depends on the [tokamak’s] center,” said Jon Menard, PPPL’s deputy director for research in a press release. “So if you can shrink things in the middle, you can shrink the whole machine and reduce cost while, in theory, improving performance.”
Another benefit is that smaller magnets mean more space for support structure that will help future spherical tokamaks withstand their own huge magnetic fields.…