Ballpoint pens distribute fast-drying ink without the ink drying in the pen itself. It uses a thick, oil-based ink that is dispersed by a small ball in a socket at the head of the pen. The ...

Pencils, erasers, ballpoint pens - it was always fun to start a new term with a new brace of equipment in your pencil case. And have you ever thought about the history behind those school essentials?

It is called the HeatVanish Pen and works by using heat sensitive ink that turns clear when hot. The pen is equipped with an electric heating element on the end which works as your rubber.