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 ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...

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 ...

Rothman is managing editor at TIME. Rothman is managing editor at TIME. On Wednesday, when former Rhode Island Gov. Lincoln Chafee announced his bid for the Democratic presidential nomination, his ...