if the absolute reference frame is admitted, in accordance with fitzgerald-lorentz length contraction effect and lodge-lorentz time dilation effect, the slide down paradox can be eliminated.
in this paper the author analyzes that time dilation effect and length contraction effect in special relativity have no relations with acceleration but velocity.
分析了狭义相对论中的钟慢效应和尺缩效应只与速度有关而与加速度无关。
as we have seen, all this makes perfect sense to observer a in terms of the length contraction produced by the motion of the rulers around the periphery.