Even though both darkness and hardness vary among brands, No. 2 and/or HB pencils are widely considered to be the ideal lead grade for writing (and they’re required for many standardized tests).

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 ...

"Pencil" is derived from the Latin word "penis" meaning "tail", because Roman writing brushes were made from tufts of fur from an animal's tail. "Lead pencils" achieve the same effect without ...

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 ...

If your Apple Pencil has stopped working, it can be frustrating, especially if you rely on it for creative tasks or ...

After scribbling a good bit of pencil lead on a piece of paper, he attached two paper clips to make a variable resistor, dialed it in to about 300 kΩ, and cut up an old Nokia charger for its USB ...

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 ...

After the massive success of The Sixth Sense, M. Night Shyamalan released Unbreakable, a thriller that is now regarded by ...

Apple today released a firmware update for the Apple Pencil Pro that launched alongside the iPad Pro models earlier this year ...

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 ...