If you’ve ever been out in the New Zealand wilderness, you might have heard a distinctive, low-frequency tone. It sounds less like an animal than the kick on an electronic drum machine. A look through ...

Most bullets make small sonic booms when flying through the air, which to our ears sound like a loud, distinct “crack!” For the Pentagon’s special forces, that makes it hard to be sneaky about what ...

Most people have experienced the sonic boom of a skillfully wielded whip, or the closely related crack of a nearby bolt of lightning. Such sounds have a character that attracts a good deal of ...