Recent discoveries about supermassive black holes seem to suggest they spin at nearly the speed of light. One of the funnier stories I was told by a physics student in college was that Einstein's theory of relativity actually suggests it's quite easy to make a time machine. One simply needs to spin a mass more than tens times that of the sun to more than 90% the speed of light. Spacetime gets so twisted by this object time becomes another direction in which one can travel.

Well, here's our object. Is it a time machine, or was I just told a silly story by someone who was better at math than he was at science?