British scaleup Tokamak Energy has secured $125mn as it looks to harness fusion — the same clean, virtually limitless energy source that powers the Sun and stars.
Tokamak spun out from the UK’s Atomic Energy Authority in 2009. As its name suggests, the company is building a tokamak reactor, the most common kind of fusion design, first pioneered in the 1960s. Tokamaks use giant magnets to keep plasma moving in a loop while running an electrical current through it.
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