Researchers at the McKelvey School of Engineering at Washington University in St. Louis have developed ink pens that allow anyone to handwrite flexible, stretchable optoelectronic devices on everyday ...

Watch an incredible art challenge where a multi-color ballpoint pen becomes the ultimate tool for a detailed anime-style illustration. This short demonstration explores the surprising versatility of a ...

Try experimenting with different colours of ballpoint pen to create layers of texture. Light-coloured felt tips can easily pick up darker colours from a drawing surface. This can be avoided by working ...

They're breathtaking pictures -- a lovely red-headed young woman, a green-eyed housecat, a peaceful temple garden in Japan. But they're not photographs -- they're copies of photographs done with that ...

These incredible images aren't photographs - they are pictures drawn with simple ballpoint pens. The amazingly lifelike illustrations are the creations of Portuguese solicitor and artist Samuel Silva.