- #1
kyle1320
- 13
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Hi, so imagine this: You have (for this theoretical situation) an entirely massless barber's pole. When it spins, the speed of the of the circumference of the pole is less than the speed the line appears to travel up (or down) the side of the barber's pole. If you were to spin the pole, could the line traveling up the pole appear to go faster than light, even though no physical part of the pole is traveling faster? Disregarding red / blue shift.