Have you ever noticed that the standard system of measurement tends to change when you exit the United States? Clothing sizes are often measured in centimeters instead of inches, distance is measured ...

When it comes to measurement systems, the world largely follows a single standard: The metric system. Yet, the United States ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American I’ve met a lot of people and learned a lot ...