But companies like Bose, Sony and Apple have improved the technology in the last year or two so their noise canceling works across a wider frequency range with a greater frequency response.

Short Wave New discoveries, everyday mysteries, and the science behind the headlines — in just under 15 minutes. It's science for everyone, using a lot of creativity and a little humor.

Six things that explain why we get upset when our football team loses Why it's so devastating when our football team loses.