AH Real Deal: iRobot's Roomba Combo i5 drops to just $199
Currently, you can pick up the iRobot Roomba Combo i5 for just $199. That's going to save you $150 off of the regular price, ...
IEEE Spectrum on MSN2d
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 commands, manually erasing a document could be a delica ...
South Florida Reporter3d
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 ...