Can you spot the hidden pencil in this image in 8 seconds? In this brain teaser, you're presented with an image cluttered ...

Photoshop CC 2014 tutorial showing how to transform photos into beautiful, color pencil & pastel portrait drawings. Pencil lines image: <a href=" In-depth tutorial on Refine Edge: <a href=" Photos ...

A pencil-shaped ultracold gas of frozen two-level atoms interacting via photon-mediated interactions, with elastic and inelastic components. A continuous laser drive excites the atoms on-resonance.

The whole point of a mechanical pencil is to have perfect sharpness forever. Yet without precise engineering and build quality, the standard slender leads are doomed to constant breakages. This ...