The metric system is on track for a mass makeover. In an effort to provide accurate measurements at all scales, scientists are preparing to redefine four basic units by the end of 2018. The shift will ...

When Sally Mitchell, a science teacher at East Syracuse Minoa Central High in Syracuse, New York, spoke to a group of students at the recent U.S. Department of Energy National Science Bowl, she ...

In the 1940s, a group of doctors at the University of Cornell set out to create a unit of pain intensity. Using the “dol” as a unit, the physicians created a 21-point quantitative scale, but through ...

The metric system is used to measure the length, mass or capacity of an object. Length is measured in millimetres (mm), centimetres (cm), metres (m) or kilometres (km). Mass or weight is measured in ...