fuckyeahfluiddynamics: When placed on a very hot, patterned surface, droplets will self-propel on a
fuckyeahfluiddynamics: When placed on a very hot, patterned surface, droplets will self-propel on a layer of their own vapor. Researchers used this to coalesce droplets so that they could observe how well they mix. (Image, video, and research credit: Y. Chiu and C. Sun) -- source link