Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Robyn Williams: And so to children and youth. We start with babies and language and learning, and this ...

A, E, I, O, U and sometimes Y is not all you need to know about vowels. There's more to these workhorse members of our linguistics inventory than you might think. The most common vowel sound in ...