A hot serrated surface can propel droplets up a slight incline due to Liedenfrost film boiling.

A hot serrated surface can propel droplets up a slight incline due to Liedenfrost film boiling.

By Cameron Misegadis and Kyle Thatcher for Spring 2014 Team Second.
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Self-propelled water droplets race up a slight incline on a serrated heated plate due to the Liedenfrost effect.

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