t (damn that length limitation) energy storage device.
Disregarding the difficulty of finding a material that would handle the stress of centrifugal force, when you start spinning up the rod, you might find that the ends get heavier as velocity increases. As velocity approaches c, mass approaches infinity. Since mass == energy, you are using all the energy to increase mass instead of increasing speed.
It appears to be a hyperbolic function. You can come infinitely close to a velocity of c, creating infinite mass. You cannot (even theoretically) reach c. It would be like dividing by zero. You can think about doing it, but the result would not be meaningful. |
