Meanwhile, MIT's fusion program is likely to be shut down soon. Their Alcator C-Mod has the strongest magnetic field of any tokamak in the world, and made a serious breakthrough in tokamak physics several years ago.
I had a chance to visit a couple years ago. A grad student showed us a metal tie, about a meter long, and said they'd calculated that two of them could hold down the Space Shuttle during launch. To hold the reactor together when they switched it on, they needed 38 of them.
They hadn't run the reactor for a year due to funding issues.
I had to run the numbers on that Space Shuttle thing, just to see. The Space Shuttle weighed about 4.5 million pounds at launch, and had a thrust-to-weight ratio of 1.5, meaning there was about 2.25 million pounds of net upward force on it. So each of those metal ties was capable of carrying a bit over a million pounds of load. Neat.
I had a chance to visit a couple years ago. A grad student showed us a metal tie, about a meter long, and said they'd calculated that two of them could hold down the Space Shuttle during launch. To hold the reactor together when they switched it on, they needed 38 of them.
They hadn't run the reactor for a year due to funding issues.