This new ink can be loaded into a regular ballpoint pen and lets users sketch out electrical circuits ... the researchers drew a heart-shaped circuit that lights up 14 LEDs.

Learn more › There will always be a place for pens, pencils ... as a traditional notebook—doodle, sketch, annotate, write, and edit to your heart’s content—but allow you to digitize ...

Like Livescribe’s Echo Smartpen, the Inkling is a digital sketch pen and receiver; sketch, and your lines will be translated into an illustration on your computer. Unlike the Smartpen ...

The nib slides fluidly over the Evo’s screen, and there seems to be no lag in communication between pen and tablet. As a sketch tool, the DuoSense runs into many of the same ups and downs as ...

In undergrad I was the guy you’d run to if you needed a charge, because I always had at least a few portable batteries in my bag at all times. A lifelong interest in technology has led me to ...