>(possible only in "unmoderated reactors", and I don't know what that means)
I'm fairly sure that refers to a nuclear reactor gone into meltdown. By the time you've knocked together enough particles to make gold nuclei it's quite hard to calm the thing down again...
I'm fairly sure that refers to a nuclear reactor gone into meltdown. By the time you've knocked together enough particles to make gold nuclei it's quite hard to calm the thing down again...