The UK just switched on an ambitious fusion reactor – and it works –

“The UK’s newest fusion reactor, ST40, was switched on last week, and has already managed to achieve ‘first plasma’ – successfully generating a scorching blob of electrically-charged gas (or plasma) within its core.

The aim is for the tokamak reactor to heat plasma up to 100 million degrees Celsius (180 million degrees Fahrenheit) by 2018 – seven times hotter than the centre of the Sun. That’s the ‘fusion’ threshold, at which hydrogen atoms can begin to fuse into helium, unleashing limitless, clean energy in the process…”

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