Meet the metric system’s newest prefixes: ronna-, quetta-, ronto- and quecto-. Science News spoke with Richard Brown, head of metrology at the National Physical Laboratory in Teddington, England, ...

The United States is one of just three countries that "prefers" imperial measurements over the international metric standard. The motivation why has less to do with official policy than you might ...

Have you ever noticed that systems of measurement tends to change when you leave the United States? Weight is typically measured in kilograms instead of pounds, distance is measured in kilometers over ...

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 ...

I was at the supermarket recently when I took note of something my eyes had passed thousands of times before. The cans of my favorite sodas were 12 ounces, while the bottles were 2 liters. It caught ...