The pupillary distance (PD) measurement is a requirement for people who want to purchase eyeglasses. Here, find out how to measure your PD using a mirror and a ruler. Share on Pinterest Some eyewear ...

This British woman believes size matters — and she’s got a new tattoo to prove it. Tracy Kiss, 34, stunned family and friends after having a ruler tattoo inked down her forearm so she could accurately ...

We've gotten less snow in the Hudson Valley in recent years, but when it does snow, every time it snows, the question swirls before the flakes stop falling: "How much did we get?" Believe it or not, ...

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 ...

An international team of scientists has uncovered a surprising mechanism for how cells measure the length of messenger RNA (mRNA) tails. Rather than determining their size, cells time their growth ...