I tried asking this question on Worldbuilding.SE but did not get much response outside of, "you cant do that." I've also seen many similar questions without the type of answer I am looking for. So I apologize in advance if I am breaking any rules. I will do my best to stay within them.
A ring, approximately 100 meters in diameter, and 1 meter in all other dimensions. And for this experiments purposes this ring is perfectly rigid.
If you spin this ring to ever increasing velocities (10-20-30-50-90% of $c$). What effects/affects would it display or take on the local environment?
I'm certain that there would be effects manifested I am not equipped to even ask about.
I have imagined that it would deflect any dust or solar wind particles in spectacular fashion with mini nuclear explosions.
How would it appear visually?
If you could see the object, would it appear to be moving(rotating)? If it did would the spinward (approaching) side appear blue, and anti-spinward appear red?
Would it begin to emit any radiation of it's own? How much? in dangerous amounts?
Or would it be EM quiet if it were not acted on from the outside?
Gravity? Would it produce gravitational or magnetic effects in its vicinity? Would this ring shape produce any special interactions?
Unruh radiation, dynamical Casimir effect other exotic side effects?
I am aware that there are no perfectly ridged object, and even if there were it's still impossible. I'm also aware that the centrifugal forces would tear this structure into itty-bitty bits.
Also note: The question does not mean this object is spinning FASTER that C. Only approaching the speed of light. 30-50-90% the seed of what ever allows an answer.
