🧪 Materials Science Biomimetic Materials Simulation

Scientists studying biomimicry have long looked to the lotus leaf as the textbook example of nature designing a material property from geometry rather than chemistry alone. This simulator builds a real micro-pillar array — the same texture found on a lotus leaf's surface — and drops a water droplet of fixed volume onto it, rendering the droplet as a physically accurate spherical cap whose shape follows the Cassie–Baxter and Wenzel wetting equations. Adjust the surface's intrinsic contact angle, the pillar solid fraction and the pillar aspect ratio, then switch between the air-trapped "fakir" Cassie state and the fully wetted Wenzel state to see, numerically and visually, how a purely geometric surface texture converts an ordinary hydrophobic coating into a superhydrophobic, self-cleaning one.