A couple of years ago I went to a Joint European Torus (JET) reactor tour, the largest magnetic confinement plasma physics experiment in the world and the close

A couple of years ago I went to a Joint European Torus (JET) reactor tour, the largest magnetic confinement plasma physics experiment in the world and the closest (current working) thing to a working fusion reactor. The temperature inside the plasma on these things reaches 10s of millions of degrees Kelvin, but on the beryllium plated walls it's fairly cool (it'd have to be otherwise the tiles would be destroyed). They also had a smaller spherical tokamak called MAST that was quite interesting. We got to go into certain areas that are normally closed off (as they're normally shut down). If you want to see what a fusion reactor looks like, there's some pictures I took from the trip are here: http://www.flickr.com/photos/z3r0kl3w/sets/72157623979315835/ http://www.flickr.com/photos/z3r0kl3w/sets/72157623979315835... - I hope you enjoy them as much as I did.