If scientists had sacred objects, this would be one of them: a single, closely guarded 137-year-old cylinder of metal, housed in a vault outside of Paris. It is a prototype that precisely defines a ...

When it comes to measuring things, there are some odd units of measurement out there. While measuring in feet is standard, there are many weirder ways to measure. Did you know a hand is a unit of ...

When someone tells you they'll be "back in two shakes!" they are guaranteed to take much, much longer than that — at least if we're talking shakes in the sense used by physicists. The shake is a unit ...

Imperial measurements are a system of measure. Today, in the UK, we more commonly use metric measures; however, we still use some imperial measures. There are many different imperial measurements for ...