Expats and tourists from the United States come to Costa Rica with a handicap. While most of the rest of the world, including Costa Rica, is using the metric system, the U.S., despite several efforts ...

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...

We Americans measure things our own way. Our yardsticks are marked in feet and inches, measures that are unfathomable to foreigners, nearly all of whom have been brought up in a decimals-only ...

A unified measuring system allows people from different nations to trade with one another without doubting what they are getting. Many attempts to make units of measure standard have come and gone ...

May is a month full of celebrations—everything from May Day and Cinco de Mayo to Mother’s Day and Memorial Day. Largely forgotten in the cornucopia of May celebrations, however, is National Metric ...

Add Yahoo as a preferred source to see more of our stories on Google. When Sally Mitchell, a science teacher at East Syracuse Minoa Central High in Syracuse, New York, spoke to a group of students at ...

If the United States were more like the rest of the world, a McDonald's Quarter Pounder might be known as the McDonald's 113-Grammer, John Henry's 9-pound hammer would be 4.08 kilograms, and any ...