[Bill Hammack], aka the [EngineerGuy] is at it again, this time explaining how retractable ballpoint pens work. In this excellent video, he describes the simple (but remarkably sophisticated) ...

Recently, Bic launched a campaign to “save handwriting.” Named “Fight for Your Write,” it includes a pledge to “encourage the act of handwriting” in the pledge-taker’s home and community, and ...

Sitting between utility and magic, the Hoverpen 2.0 is a ballpoint pen that hovers at a 23.5-degree angle—a nod to the earth’s axial tilt—without electricity. The feat is achieved thanks to physics, ...

Even if you've taken one of these apart, it's still hard to understand how it works! This video utilizes 3D animation to explain the mechanics clearly. It has been dubbed in over 20 languages; you can ...

At its most basic, a pen has to do just one thing, but there are so many reasons to choose one over another. Does it glide along the page, or does it drag? Does the ink flow in a smooth line, or is it ...