Polymer materials are crystallized under various kinds of flow during processing, such as fiber spinning, injection molding and extrusion. These flows affect the crystallization kinetics and the final ...

The best tutorials for drawing faces at any angle—step-by-step guides to master proportions, perspective, and expression for confident portrait drawing. Arrest made in the killing of a couple hiking ...

Master the challenging perspective of drawing heads from above with easy-to-follow tips and tricks! This tutorial breaks down the basics of proportions, angles, and shading to help you capture dynamic ...