Learn how to work out the actual measurement of an object by using scale factors and revise how to work out distance using a map, with practice questions and a quiz.

The Richter scale was replaced in the 1970s by other magnitude scales that are more accurate. Even though it’s outdated, the term is still used often when discussing earthquakes.

Smart scales track changes in your muscle mass, body fat percentage and other health metrics — but how do they work?

Maps, scales, surveyors’ tools, rulers and specimen jars make up just a few of the objects on display.

Body fat scales can be an easy way to track your body fat percentage, but they may not tell the complete story about your health.

(WHTM) — Residents in Pennsylvania felt shaking Friday morning as a 4.8 magnitude earthquake struck New Jersey. One of the most commonly-known earthquake measuring tools is the Richter Scale,… ...