There is no such thing as “black light wavelength”—so why do black T-shirts, black crayons, and black marking pens look black? Investigate a variety of black ink markers, and find out why they look ...

A printing method using surface energy control allows a single stamp to create multiple patterns, simplifying electronics ...

We don’t put ink to dead ... style with a little black Hackaday emblazoned notebook. As demonstrated in the video after the break, the process starts by designing the stamp in your CAD package ...

adding multiple layers of the black ink. I keep this nifty device on my work desk at home, and while I wait for my computer to boot up every morning, read my mail and stamp, stamp, stamp!