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 ...

People with poor sight can't use rulers. Or rather they can't use them easily. Try adding a magnifying glass to the mix when you're already trying to balance a pencil and a ruler in a tricky nook ...

When you need a quick measurement and have no ruler around, the common objects you have in your wallet can give you an approximation. Here are the dimensions for US paper money, coins, credit cards, ...

Size Matters: Measuring distances between molecules is no simple task, but a team of German researchers has developed a new method that could revolutionize biological research and possibly even impact ...