IEEE Spectrum on MSN1d
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 ...
Jalopnik25d
If Shifting Your Car Isn't Enough, You Can Shift Your Pen
It's actually a functional mechanic for swapping between different colors of ink, plus an eraser cartridge. Remember those four-color pens from your childhood? It's that, but with an automotive ...