Smartphones are useful for a lot of things. You can even use one as a ruler in a pinch. Generally speaking, you won’t replace your trusty yard stick. A phone is simply too small for anything other ...

Have you ever been in a situation where you needed to measure something — maybe a baseboard or a window frame — but were caught without a tape measure? Oh no! What do you do? The solution is actually ...

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 ...