Nick and Sally copy a sound pattern of buzzes and bells, to unlock a door. When a locked door plays a series of sounds, Nick and Sally try to repeat the sounds, to get the door to unlock. It works!

In the late 18 th century, German physicist and musician Ernst Chladni demonstrated how vibrations could be used to create striking imagery. By spreading fine sand across the top of a metal plate and ...

The English language has very interesting sound patterns and pronunciation rules that sets it apart from other languages. These sounds tend to be difficult, if not tiresome for non-native speakers to ...