Very easy to follow instructions on how to play the Jew's harp. Complete with a nice labeled diagram which shows all the parts of the Jew's harp. Provides links for advanced lessons as well.

Want to make music with your head? In this experiment, create a musical instrument by wrapping a string around your head.

Laminar flow is explained at a basic level here at Exploratorium.com. Examples of things that use laminar flow are given. Links to related sites.