Since the scale line of a general ruler has a width, many people have had the experience of trying to draw a line of the correct length with a ruler and wondering 'how far should I draw this scale ...

Nanotechnology, which is developed at the impossibly small size of one billionth of a meter, is essential to everything from more powerful chips in smartphones to finding cures for the worst diseases.

There's a reason for that small gap before the zero on a ruler. But have you been accounting for it in your measurements?

US-based innovators HOZO Design C.O. have launched an Indiegogo campaign for the “first compact digital rolling ruler.” The “ROLLOVA” seeks to replace traditional measuring tapes with a compact gadget ...