Melanonychia is a brown or black stain in your fingernail or toenail. You can have a dark line on one nail, a few nails, or all of your nails. The line is caused by the natural color in your body ...

Choosing square nails speaks of order, self-esteem, and strong character. Discover what this shape says about your personality, according to psychology ...

There are hundreds of thousands of distinct colors and shapes that a person can distinguish visually, but how does the brain process all of this information? Scientists previously believed that the ...

A light-responsive surface encrypts data by coupling structural color with programmable shape change, enabling secure and reversible information storage without electronics. (Nanowerk Spotlight) The ...

Grid lines add horizontal and/or vertical lines to your graph that aid in measuring graph values. By default, these grid lines use the color assigned to the "automatic" selection feature, which is ...