Het belangrijkste in communicatie is te horen wat er niet wordt gezegd.

Peter F. Drucker (1905-2005)
Auteur, Management consultant en 'Social Ecoloog'
The tundun is the world's first long-distance messaging system.

What is a Tundun?

Although it's often fondly called "the bush telephone", Australian Aborigines used the tundun - also known as bullroarer - to communicate long before either the telephone or even the telegraph was invented.

The bullroarer makes a distinctive howling or whirring sound. Variations in the bullroarer's pitch are due to the natural 'Doppler' effect*, the length of the cord and the changing velocity while swinging the bullroarer. These elements combined with the bullroarer's low frequency enabled indigenous peoples to vary the pitch and send secret messages on the wind. Bullroarer "messages" may be audible miles away from their origin.

To us the tundun symbolises transparent and effective communications.

* The Doppler effect, named after Christian Doppler, is the change in frequency and wavelength of a wave as perceived by an observer moving relative to the source of the waves. Click here for more information.