A few weeks ago we rented the movie “Sunshine“, in which a group of astronauts embark on a mission to fire a gigantic bomb into the sun (which is suffering from diminished output) to reignite it, and thus rescue Earth from the grip of an endless winter. (Sounds like one of Dennis‘s missions, doesn’t it?) There seems to be a lot of carping about the physics of this, as the sun isn’t scheduled to start dying for quite some time; in the back-story, which is not explained in the film, it is revealed that this is because the sun has captured a Q-Ball which is acting as a damper. I read the explanation and still don’t understand exactly what a Q-Ball is, so I’ve decided it’s something that Q uses when he’s shooting pool. But I digress.
Viscosity 