Originally Posted by wsabol
The Lorentz equations and there special relatively concepts only apply when you are not accelerating. When your stick goes up and comes back down, its constantly accelerating, so I don't know the we can make these generalizations, but I may be wrong.
Also, you the player aren't really moving at all when you are playing singles, just your sticks, so you won't experience any of this if it were happening. I consider you, the play, the observer, and the sticks the relativistic object.. Just for the sake of argument, say you could play singles at relativistic speeds, as you play faster and faster, you wouldn't be able to perceive the increase in speed because the sticks are experience time dilation. Like when particles accelerate to speeds near the speed of light as those are eaten by a blackhole, an observe would see that cloud of particles slow down so much that light emitted by the particles would stretch into red-er wavelengths and you'll see the cloud fade away very slowly, very very slowly.
For relativity to be considered, someone has to be moving. There has to be two observers because changes in time and length are all relative to the individual observer. As one observer passes the other, they both experience the same thing relative to them. The person moving will observe no change in their state, but will observe time slowing down and length contraction of the stationary observer. The stationary observer will observe the same exact thing about the moving observer. Without a second observer, there is nothing relative to compare. It is like being both tall and short at the same time. It is only relative to the people you are standing next to. This can't happen if you are by yourself. As for sticks being an observer, this can't happen.
As for a black hole, you are correct, but nothing is actually slowing down. The red shift, and even blue shift in wavelengths is dependent on the position of the black hole and the light being sucked into it in relation to earth. The event horizon is what starts the bending of light into the black hole as it rotates around it, and why we see the shift in wavelength and subsequent stretching and slowing down of the light. There is a term for what this effect would be on the human body: spaghettification. We would be stretched and compressed simultaneously, while also being moleculerly destroyed into a singularity.