Water droplets + aerogel powder = superhydrophobic fun

This 2010 video demonstrates the wonderful and intriguing behavior exhibited by water when it is dripped on paper that is coated with "superhydrophobic" aerogel powder. The water forms tiny marbles and races around like it's on a griddle. This looks like it would be a lot of fun to try in person, possibly with some small people in attendance.

Water droplets on a superhydrophobic surface (via Geekologie)

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