What eventually won over even the most diehard sceptics were images of the random way the beads were embedded in the layers of rock rather than sorted by size, as they would have been by wind or waves.

• 终于，图像中嵌入石层的小球呈随机分布，而非像在有风或波浪参与时，应呈现的按大小排列这一事实，使最顽固的怀疑者也不得不缴械了。