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 ...

Designers, engineers, builders and students looking for a versatile ruler which offers both millimeters and inches together with a unique aluminum design may be interested in the Re-ruler created by ...

Your smartphone can not only serve you as a digital ruler, but it can also help you measure various other things. Smartphones are very powerful tools, especially if you pair them up with good apps. In ...