Is it hard to fly a helicopter in the Antarctic cold? What do penguins sound like? How about the instruments designed to test ...

Winter driving has its own kind of soundtrack, and not all of it is comforting. When temperatures drop, your car suddenly becomes a composer of strange noises that you never hear the rest of the year.

Have you ever stepped outside on a frigid, quiet morning and heard sounds emanating from somewhere far away? It's not your imagination—cold air really does carry sound farther. Sound begins with ...