Now, in a recent study, researchers from Japan found a simple and low-cost way of tuning the reflectance spectra of pencil lead samples using plasma. Their technique enabled them to produce pencil ...

Not true anymore. A lot of the pencils you find now are cheaply made. The wood isn’t good. Often, it isn’t even wood. It’s some composite substance. And the lead isn’t good graphite. Good pencils are ...

National Museum of American History pencil, packaged set National Museum of American History Box of American Lead Pencil Co. Venus Pencils National Museum of American History Wallace Pencil Company ...

Common mechanical pencils come in sizes to accommodate 0.5, 0.7, and 0.9 mm leads, but there are bigger and smaller ones available. Perhaps one of those really large drafting lead holders could be ...

The Wingback Designer’s mechanical pencil pairs a Japanese mechanism with a British-engineered brass case, creating a pleasingly weighted writing device. The integral reservoir has been designed to ...

The pencil “lead” is actually a mixture of graphite and clay. More clay in the mixture makes the lead harder. A harder lead has a higher number. Pencils are numbered from 1-3 but most people use a ...