There are some inventions that look completely pointless to the untrained eye: who would ever need a motorized garbage can, an electric pencil sharpener or a battery-powered eraser? Quite often ...

The other modification that we made to our pencil is the addition of the metallic ring around it at the level of the magnets in order to give them something to act on because we quickly discovered ...

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 ...

Twist-Erase III Mechanical Pencils feature a sturdy, well-balanced barrel that makes it the most popular Twist-Erase Pencil Protective tip design stabilizes lead to reduce lead breakage Latex-free ...