Reply to post: Re: Didn't they used to have a flywheel?

Hotter than the Sun: JET – Earth’s biggest fusion reactor, in Culham

John Robson Silver badge

Re: Didn't they used to have a flywheel?

I recall them being described as the mass of a train (which looks a bit like an understatement actually) - but it looks like the time to spin up is 7 minutes, and to stop them takes 9.4 seconds... (ignoring operational losses)

That's pretty impressive, particularly when you think that the outside of the flywheel (and most of the mass) is travelling at 200+mph - probably not quite in the 'get to Reading and keep going' territory though (although if it was on rails....)

Operations are probably still scheduled around ad breaks in Coronation street though...

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