Video: Enjoy the water droplets

A video was provided by researchers at the University of Bath, showing the scene of water droplets falling into the hot pan suddenly became "mischievous" and "running and jumping" everywhere.

This is explained by the Leidenfrost effect . If you've ever put water in a hot pan, you've probably seen the effect of this effect. The water droplets leaped on the pan and fled to 'hide' the scorching heat below because the surface temperature of the pan was nearly twice as hot as the boiling water.

The water exposed to the pan surface evaporated and formed a gas layer about 0.1mm thick. This gas layer acts as a water droplet barrier and pan surface. As a result, when the water in the pan is very hot, the droplets seem to become 'agitated'.

In the experiment conducted at the University of Bath, the researchers also found that changing temperatures could lead to changes in the direction of the droplet's movement and even water droplets could 'hill climb'. The more jagged the surface, the more water droplets can climb high slopes.