October 29, 2015 | Sheldon, Exhibitions Developer, Science Museum

I think it's both terrifying and exciting that we're re-creating the core of the Sun in a machine in Germany.

This November, the experimental fusion reactor W7-X will be starting its engines. This is the first viable fusion reactor that can actually produce energy. Fusion is what happens inside the Sun, where the temperature of the core is about 15 million degrees Celsius. But W7-X will need to generate temperatures of about 100 million degrees.

Fusion reactors will be a cleaner and more efficient source of energy.

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Although the reactor's fuel needs to be kept at 100 million degrees Celsius, the magnets that control it are at minus 270 degrees.

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Image: Flickr/Chema

1 comments on 'Fussing over fusion'

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Ruth

November 13, 2015 at 13:08

It sounds exciting just like nuclear power. The same problems exist: how will we use the power, can the correct temperatures be maintained, will the man-made structures be safe? We tend to abuse technology, using it to dominate one another.

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