Watch This Interface Replicate The Movements of Water
Materiable can be programmed to mimic any substance's viscosity, elasticity, and firmness

Imagine studying wave patterns without ever getting wet. That’s just one of the many applications of Materiable, a new interface designed to mimic the properties of other materials with responsive blocks.
You’ve seen shape-changing interfaces before, but what’s cool about this new project from MIT is that its programming goes a step past responsive design. Your interactions with the surface changes based on what you’ve programmed it to replicate: water, rubber, a mattress–take a look at everything that’s going on:
[H/T Wired]