IEEE Spectrum on MSN4h
Before the Undo Command, There Was the Electric Eraser
An electric eraser could also be a timesaver. In the days before computer-aided drawing and the ease of the delete and undo ...
South Florida Reporter1d
A Pencil With An Attached Eraser Was Created In 1858 Almost 200 Years After The Pencil
Henry David Thoreau and his father invented the graphite, which creates very readable text; This became standard in ...
Recombu4d
10 Best Automatic Pencil With Erasers
Twist-Erase III Mechanical Pencils feature a sturdy ... grip delivers maximum comfort and control With the jumbo Twist-Up Eraser, you'll suffer no smudges, no paper tears and no ghosts Each ...
Hackaday2y
Power Up Your Pencil With The 30,000 RPM Erase-O-Matic
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 ...