I thought of a disk rotating freely in space at 60 RPM, for example, as a way to move gross matter at and beyond the speed of light. A point on the disk at a radius of 5/π meters would be moving at a speed of 10 m/sec, while a point on the disk at a radius of 50/π meters would be moving at a speed of 100 m/sec, right? So it would follow that a point on the disk at a radius of (15x10⁷)/π meters should be moving at a speed of 3x10⁸ m/sec. I imagine that people who spend far more time...

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