如果你第一眼看到的旋转舞女是逆时针自旋，那么与第一眼看到的是顺时针旋转的观察者相比，你能够看到旋转舞女进行相反方向旋转的可能性要大很多——这可能是因为我们观察一个物体旋转时的自然倾向就是顺时针，这在第一张图中也得到了证实。

If you saw the figure spinning counter-clockwise first, then you were significantly more likely to be able to reverse the direction of rotation than if you saw it spinning clockwise first.

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