Drop Of Water Bouncing Off Of Surface
If you’ve ever seen something known as a “superhydrophobic surface,” you might know how this stuff works. Also known as ultra hydrophobic, any surface that is like this will be extremely difficult to wet. Usually, the contact angles of water droplets on any superhydrophobic material exceed 150 degrees. That is essentially the lotus effect, which refers to the self-cleaning properties of a lotus plant. A droplet that strikes one of these surfaces will fully rebound, sort of like an elastic ball. The interactions of bouncing drops can be further reduced using special superhydrophobic surfaces like what you see above.