In the 1700s, a man named Leidenfrost discovered that at a certain temperature above the boiling point of water, drops of water stopped evaporating quickly and started bouncing around and evaporating really slowly.
I’m not sure when this effect was discovered, but if you drop water onto a sawtoothed texture, the water will move in the direction opposite the teeth … very cool!
I got this link from Petra, one of my Dutch friends …
