The speed of light? Interesting. In a suspended vacuum, assuming the particle can maintain its integrity, if the pulse stop penetrating the spinning "device", have we not accelerated an object to the speed of light? WHOA!
What prevents the particle from spinning faster than light, besides light itself? Theoretically, if the device is spinning at the speed of light and then launched in space, is there not a component of the device (the outer edge) that will exceed the speed limit?
Physics is fun. ;o)
The part spinning at a rate exceeding the speed of light is supposed to increase infinitely in size. No?