The whole point of a mechanical pencil is to have perfect sharpness forever. Yet without precise engineering and build quality, the standard slender leads are doomed to constant breakages. This ...

A lighted electrosurgical device to cut and coagulate tissue while improving the visibility of deep crevasses in the body. Medtronic produces electrosurgical pencils that cut and coagulate using high ...

The pencil has a number of champions. Pencil historian Henry Petroski points out that its very eraseability makes it indispensable to designers and engineers. "Ink is the cosmetic that ideas will ...

In light of this, but also given the environmental impact of the production of wooden pencils, students from the Rajalakshmi Engineering College, a UNAI member institution in India, developed an ...