Superblack material made from microscopic carbon nanotubes is produced in a US laboratory.

The hanky Code is a traditional form of signaling to others what your sexual preferences and interests are. Gay men used this code to communicate with each other in the noisy and distracting environment of gay bars. Although not as widely used these days, it is still a worthwhile resource and is, among those who know, a great conversation starter.

All About the Color Colour BLACK