At the scale of drops, water either sticks to inclined solids or moves, yet slowly—without the mobility we expect of a liquid of low viscosity. We first recall that the contact line that bounds a drop is responsible for these special adhesion and enhanced friction properties. Then, we discuss how inducing nonwetting states (pearls and marbles) minimizes the role of this line, restores mobility, and even boosts the liquid when it is viscous.

中文翻译：

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水滴、珍珠和弹珠的流动性


在液滴的规模上，水要么粘在倾斜的固体上，要么移动缓慢——没有我们期望的低粘度液体的流动性。我们首先回顾一下，围绕液滴的接触线是这些特殊粘附和增强摩擦性能的原因。然后，我们讨论了诱导非润湿状态（珍珠和大理石）如何最大限度地减少这条线的作用，恢复流动性，甚至在液体粘稠时增强液体。