We’ve already seen a pen with silver-based ink, that lets its user draw electrical circuits on ordinary paper. Now, scientists from MIT have brought similar “hands on” technology to the humble pencil ...

Plasma irradiation removes graphite from the pencil lead, exposing a thin layer of clay. By controlling the exposure time, the thickness of this layer can be varied to modulate the infrared (IR) ...

Lead is a grey or silver-white soft metal. We've been using lead for thousands of years, because it's so useful. Unfortunately, lead is quite toxic to humans, which is why we have mostly replaced it ...

The most important part of the setup is the pencil lead. The University of Missouri team behind the new study found that a 93-percent graphite mix was best for the job – the patterns this pencil lead ...

LOUISVILLE, Ky. — They’re at the top of the list for every back-to-school shopper: pencils. And not just any pencil will do—they’ve got to be No. 2 pencils. But, what the heck is a No. 2 pencil? And ...

Nanocarbon materials with pointed geometries, such as graphene and carbon nanotubes, are considered promising candidates as sources for field emission electrons. However, their practical application ...