For the latter, many have turned to 3D printers to create more rock-like ... For small manufacturers, typically the way that the rock texture is mimicked is by somehow incorporating sand ...

[Stefan] is always looking for a way to make stronger and better 3D prints. His latest experiments involve using a texture on thin plastic parts to increase stiffness. You can see the texture ...

This phenomenon is due to the leaf’s distinctive texture, which traps air within its tiny ridges and folds. Rice University ...